Subject: Digital Elev. Data Catalogue (5/5) [LONG!]
From: bruce@geovax.ed.ac.uk (Bruce Gittings)
Date: 1 Oct 96 00:03:48 GMT
##### Part 5 of the Digital Elevation Catalogue #####
accuracy of 30m LE 90%.
10m and 100m DEMs are available at the following prices (in US dollars):
per km2 Total Cost Copyright Restrictions
------- ---------- ----------------------
10m DEM $1.5912 $66,512 One-time license fee
100m DEM $0.4351 $18,205 " "
All datasets cover the entire national area.
Contact:
Topografishce Dienst
Bendienplein 5
NL-7815 SM Emmen
The Netherlands
(57) The 1:1250 and 1:2500 datasets contain link/node elements and cover 4%
and 86% of the national area respectively. The 1:2500 dataset should be
completely available by 1997. Both datasets are continuously updated.
The 1:10 000 and 1:100 000 topography datasets should also be completely
available by 1997. The 1:100 000 was produced through generalization.
The 1:10 000 is known to be continuously updated.
In addition to contours the 1:50 000 and 1:250 000 datasets also cover
hydrology, coastlines and boundaries. The 1:250 000 also covers
communications and settlements. The 1:50 000 contains vectors, seeds,
feature codes, names and INS-codesand the 1:250 000 contains vectors.
The datasets cover the national area and both should be completely
available. The 1:50 000 is continuously updated and the 1:250 000 is
updated irregularly.
All datasets use the Irish Grid coordinate system.
Costs for most of these data sets can be arranged through a bilateral
agreement.
Contact:
Ordnance Survey of Northern Ireland
Colby House
Stranmillis Court
NIRL-Belfast
BT9 5BJ
Northern Ireland
See also note (4) for information on the OS NTF transfer format.
(58) The 1:10 000 DTM uses the Gauss Projection coordinate system. 37% of the
dataset is available and future availability is unknown. The data set is
being irregularly updated.
Only 5% of the 1:50 000 data is available and again, future availability
is unknown. This data is also being irregularly updated.
The 1:500 000 dataset contains point and line elements and is completely
available. It also uses the Gauss Projection coordinate system and is
being irregularly updated.
They're are also 10m and 50m DEMs available at the following prices (in
US dollars):
per km2 Total Cost Copyright Restrictions
------- ---------- ----------------------
10m $23.3546 $1,277,863 One-time license fee
50m $ 0.9123 $ 83,218 " "
All datasets cover the national area, except for the 10m DEM which covers
60% of the national area.
Contact:
Instituto Geografico Cadastral
Pra a da Estrela
P-1200 Lisboa
Portugal
(59) The Instituto Geografico Nacional can be contacted at:
Instituto Geografico Nacional
General Ibanez de Ibero 3
E-28071 Madrid 3
They have a 200 x 200m DTM that covers the national area and the complete
dataset is available.
Their 1:25 000 topographic dataset covers 30% of the national area and
contains topographic information such as administrative areas, relief,
hydrography, vegetation, built-up areas, traffic and power lines.
The 1:200 000 topographic dataset covers the entire national area.
Both datasets are based on UTM coordinates and should be completely
available. The update procedure for the datasets is irregular.
For the contour/height datasets; about 7% of the 1:25 000 contour/heights
dataset is available and future availability is unknown while the 1:200
000 data is completely available. Both datasets cover the national area
and their is no update procedure.
Documentation is available in Spanish for the 1:25 000 and 1:200 000
topographic data (unknown for others).
(60) These datasets cover the national area and are based on the National
Grid of Sweden coordinate system. The datasets are being irregularly
updated. English documentation is available. Contact:
The 50m DEM was produced from 1:50 000 maps, aerial photos, and ortho
photo plates from 1:10 000 and 1:20 000 photos. Cost is #60,000. The
dataset consists of 130 million elevation points covering 400 000 km2.
The 500m DEM was produced in the 1960s for radar intervisibility studies
from 1:50 000 maps. Cost is unknown.
Contact:
Lantmateriet, Lantmateriverket
Lantmaterigatan 2
S-801 82 Gavle
Sweden
Reference:
Ottoson, L., 9th Int Con on Cartography, Maryland, July, 1978,
Establishment of a High Density Digital Terrain Elevation Data Base in
Sweden.
(61) They are three series of datasets available from the "Bundesamt fur
Landestopographie" for Switzerland. These are Link/node/raster
topography maps; Point/line/raster topography maps; and Height point
datasets.
Link/node, Raster Topography Data
---------------------------------
They 1:25 000 and 1:50 000 datasets will not be available until the year
2000. The 1:100 000 data is planned to be available in 1998. All
datasets will cover the national area.
(62) This dataset is not for sale.
The owner of this data set is:
Ministry of National Defence
General Command of Mapping
TR-06100 CEBECI - Ankara
Turkey
(63) In the German federal state of Baden-Wurttemberg the state surveying
office (Landesvermessungsamt) provides the following data covering the
state;
-topography data at 1:25 000 and 1:50 000
-50 x 50m spot heights
There are two 1:25 000 datasets. One contains topography based on the
ATKIS data model and stored in ATKIS (German standard land information
system). Availability is planned for 1996/97. The other is a raster
topography dataset only 20% of which is available. The 1:50 000 raster
topography is completely available.
The 50 x 50m spot height data has an accuracy of 2-5m and is based on the
Gauss-Kruger coordinate system. The data source is aerial photos (scale
unknown) and the height points refer to the top of trees in forested
areas. This data is stored in Siemens SICAD-GDB software.
Contact:
Landesvermessungsamt Baden-Wurttemberg
Buchsenstrasse 54
D-70174 Stuttgart
Germany
(64) For the German city-state of Hamburg 1:20 000 Topography (pre-version of
ATKIS) data should be completely available. The data source is a 1:20
000 city map. The data is stored in Siemens SICAD-GDB software.
Contact:
Bauberhorde - Vermessungsamt -
(Building Dept. Surveying Office)
Wexstrasse 7
D-20355 Hamburg
Germany
(65) The surveying office (Landesvermessungsamt) for the German state of
Hessen provides the following datasets that cover the state area.
They can be reached at:
Hessisches Landesvermessungsamt
Schaperstrasse 16
D-65195 Wiesbaden
Germany
They have a 1:25 000 topography data set stored in ORACLE and based on
the ATKIS (German standard land information system) data model (see note
which also covers location and hydrology. Complete availability of the
dataset is planned for 1996. The data source is a combination of
cadatral maps and city plans.
There are raster topography datasets at the 1:25 000 (33% available,
future availability unknown) 1:50 000 and 1:100 000 scales.
Both of the spot height datasets are complete and available.
(66) Two datasets covering the German state of Mecklenburg-Vorpommern are
available from the state surveying office (Landesvermessungsamt):
Landesvermessungsamt Mecklenburg-Vorpommern
Lubecker Strasse 289
D-19059 Schwerin
Germany
They have 1:25 000 topography based partly on the ATKIS (German standard
land information system) data model. The dataset also covers commune/
location names and boundaries. The datades city plans and availability
of the dataset is planned for 1997. This data is stored in Siemens
SICAD-GDB software.
A raster topography dataset of unknown scale/resolution should be
available, no other details are known.
(67) The German state of Northrhine Westphalia (Nordhem-Westfallen) has data
available from its state surveying office (Landesvermessungsamt):
Landesvermessungsamt Northrhine Westphalia
Muffendorfer Strasse 19-21
D-53177 Bonn
Germany
They have 1:25 000 Topography data based on the ATKIS (German standard
land information system) data model. The data also covers boundaries,
unused land and customs. The data was planned to be complete and
available by 1995.
The DGM50 dataset contains 50 x 50m spot heights produced from
photographic profile measurements and is fully available. The DGM10 data
contains 10 x 10m height points with an accuracy of +/- 0.3 to 0.5
meters.
The raster topography datasets were produced from scans, all of which are
available in TIFF and Scitex Type 30 formats.
All datasets use the Gauss-Kruger coordinate system (1:500 000 ?).
(68) Data covering the German state of Rhineland Palatinate (Rheinland Pfalz)
can be obtained from the state surveying office (Landesvermessungsamt):
Lanedesvermessungsamt Rheinland-Pfalz
Ferdinand-Sauerbruch-Strasse 15
D-56073 Koblenz
Germany
Like most German states they have 1:25 000 topography data based on the
ATKIS data model. This is stored in Siemens Sicad GDB software and
planned for full availability in 1995 (therefore should now be
available). The data also partly covers planned land use.
Their 20 x 20m spot height data (DHM5) is 68% available with plans for
90% availability by 1998. The data source is 1:8 000/1:12 500 aerial
photos and a 1:5 000 base map. The dataset will be updated together with
the base map or on special demand.
The 40 x 40m spot height data (DHM25) produced from 1:34 000 aerial
photos is 32% available with plans for it to be replaced successively by
the 20 x 20m data down to 10% of the land.
The 40m DEM has accuracy of + 2-3m (+9m in woodland) produced from 1:125
001 + 1:34 000 aerial photos.
All use the Gauss-Kruger coordinate systems.
Raster topography data should also be available, no details are known.
(69) Data covering the German state of Saarland can be obtained from its state
surveying office (Landesvermessungsamt):
Landesvermessungsamt des Saarlandes
Von der Heydt 22
D-66115 Saarbrucken
Germany
They have 1:25 000 topography data based on the ATKIS (German standard
land information system) data model and planned for availability in 1997/
98. The data also covers cable, mast. and is stored in Siemens SICAD-GDB
software.
They also have DGM5; 1:5 000 contour lines and structure data stored in
vectors and based on Gauss-Kruger (3rd system) coordinates. The data
source is 1:12 000 aerial photos and a 1:5 000 base map. The data will
be updated every 5 years for mining areas. Data is available in
SCOP(KARTE001, WINPUT), EDBS AND SICAD-SQD IN ASCII/EBCDIC exchange
formats and tar and BS2000 exchange structures on disk, magnetic tape and
streamertape.
The 1:5 000 contour data was used to calculate DHM5, the 20 x 20m spot
height data which is based on the same coordinates and in the exchange
structures/media as the 1:5 000. DHM5 is available in SCOP(KART001,
WINPUT) in ASCII/EBCDIC. German documentation is available for both
datasets.
(70) Data covering the German state of Saxony (Sachsen) can be obtained from
it's state surveying office (Landesvermessungsamt):
Landesvermessungsamt Sachsen
Olbrichtplatz 3
D-01099 Dresden
Germany
They have 1:25 000 Topography data based on the ATKIS data model planned
for availability in 1997. Data sources include city plans and the
dataset also covers commune names, location names and boundaries. The
data is stored in Siemens SICAD-GDB software.
(71) Data covering the German state of Slesvig-Holstein (Schleswig-Holstein)
can be obtained from its state surveying office (Landesvermessungsamt):
Landesvermessungsamt Schleswig-Holstein
Mercatorstrasse 1
D-24106 Kiel
Germany
They have 1:25 000 topography data based on the ATKIS data model
(partly) which also covers main dikes. Availability is planned for
1997.
10% of their 12.5 x 12.5 spot height data is available, future
availability is unknown and no other details are available.
There should also be a raster topography dataset available, again, no
other details are known.
(72) Data covering the German state of Thuringia (Thueringen) can be obtained
from:
Thuringer Landesverwaltungsamt
- Landesvermessungsamt -
Schmidtstedter Ufer 7
D-99084 Erfurt
Germany
They have 1:25 000 topography based on the ATKIS data model and stored in
ORACLE. Availability is planned for 1997.
They also have two 25 x 25m spot height datasets;
1) Accuracy: 5m Availability 20%
2) Accuracy: 9m Availability 30%
(73) The New South Wales Land Information Center (NSW LIC) has 25m grid data
covering 70% of NSW at 1:250 000 scale. The source of the data is
digitised topographic maps and ortho-photo profiles.
Contact: Greg Reid (063) 328465
They also have 5m grid data coving the Sydney area. The data set is
72,018,001 elevation points in size and costs AU$100 and AU$20 per km2.
The data source is 2m, 4m and 10m contour maps.
Contact: LIC (063) 326200
The address for the LIC is:
LIC
PO Box 143
Bathurst, NSW
Australia
2795
(74) The Department of Land Administration of Western Australia (DOLA)
has digital contour data from 5m, 10m and 20m maps covering 40% of
Western Australia.
Contact:
Alex Wyllie
DOLA Central Government Building
Cathedral Ave.
Perth 620
Australia
(75) Survey and Mapping Victoria have ungridded digital contour data at
1:25 000 covering 30% of Victoria.
Contact:
J.R. Parker Tel: (03) 651 5111
Fax: (08) 651 2353
Surveys and Mapping Victoria
2 Treasury Place
Melbourne
Victoria, 3002
Australia
(76) The Bureax of Mineral Resources (BMR) of Australia has 6'(11km) grid
data covering Australia.
The data has horizontal accuracy of 100m and vertical accuracy of 4-5m.
the size of the dataset is 400 000 elevation points. The origin is the
Australian Gravity Data Base.
The data sources are ground and barometic surveys. Contact informaiton
is unknown.
(77) Lands South Australia has digital contour data covering South Australia
that can be gridded on request. The horizontal accuracy of the data is
10-100m and the vertical accuracy 0.3-2m.
The data format is UNIX Design File in 3D, (others available) on floppy
disk, magnetic tape or exabyte.
The origin of the data is contour maps of the largest scale available
over any area.
Cost is worked out by a formula.
Contact:
Grant Cullen Tel: (???) 226-4852
Superintendent of Mapping
Lands SA
Mapping Branch
282 Richmond Rd.
Netley, South Autralia, 5037
Australia
(78) The TUG87 dataset covers the world at a horizontal grid of 5'x5', 30'x30'
and 1 degree x 1 degree. It was produced between December 1986 and March
1987.
Contact:
Professor H. Sunkel
Institute of Theoretical Geodesy
Technical University Graz
Technikerstrasse 4
A 8010 Graz
Austria
(79) The Ontario Ministry of Natural Resources has 60 and 100m DEMs covering
North and East parts of Ontario (401 highway) produced from 1:30 000 and
1:50 000 aerial photography.
Contact:
Barry Costello Tel: (416)314-1300
Ontario Ministry of Fax: (416)314-1336
Natural Resources
90 Sheppard Ave E.
North York, Ontario
M2N 3A1
Canada
(80) DEM data for Greenland produced from airborne radar altimetry is
available from:
Kort-og Matrikelstyrelsen Geodaevision
Rentemesterves 8
DK 2400 Kobenhaun NV
Denmark
Contact: Simon Ekholm
(82) The Tecnical University Delft in the Netherlands makes this data
available on floppy disk. It was produced in 1963 in a free air
anomalies study.
Contact:
Faculteit Geodesi
Technical University Delft
Postbus 5030 2600 GA Delft
Netherlands
(83) This data set has horizontal accuracy of 130m CE 90% and vertical
accuracy of 30m LE 90%.
Contact:
Jonny Anderson Tel: 47 67 18 100
Statens Kartverk Fax: 47 67 18 101
Kartuerksum
N-3500 Honefoss
Norway
(84) These DEMs are produced from 1:250 000 maps and cover 15-24 degrees East
- 28 - 35 South.
Contact:
Prof. C.L. Merry
Dept. Surveying
Menzies Building
24 Engineering Hall
University of Cape Town
Rondesbosch 7700
South Africa
Reference:
Merry, C.L. (1981), A preliminary DEM of South Africa, SA Survey Journal,
April, pp4.9.
(85) Coverage is digitised 20m contour data from 1:50 000 National Map Series.
Belize is covered by 44 of these sheets, of which approximately 20% have
been completed as of mid-1996.
Charges will depend on the type of institution making the request.
Contact:
Land Information Center Tel: (0)8 22249
Ministry of Natural Resources Fax: (0)8 22333
Belmopan Email: lincenbze@btl.net
Belize
(86) This DEM covers 28.873% of the Canada's area. Costs are (in US dollars)
$1.1325 per km2 or $4,431,775 total and based on a Royalty license.
Contact:
Geomatics Canada, Ottawa
(87) They're are 25m and 50m DEMs with 100% coverage of Israel available at
the following costs (in US Dollars):
Per km2 Total Cost Copyright Restrictions
------- ---------- ----------------------
25m DEM $1.04 $22,361 One-time license fee
50m DEM $0.52 $11,181 " "
Contact:
Survey of Israel, Tel-Aviv
(88) The Department of Suveying and Mapping in Kuala Lumpur has 15m and 30m
DEMs each of which covers 10% of Malaysia. Prices are as follows (in US
dollars):
per km2 Total Cost Copyright Restrictions
------- ---------- ----------------------
15m DEM $9.5831 $316,028 Annual + one time fee
30m DEM $2.3958 $ 79,026 " "
Other details are unknown.
(89) 1km DEM data is available for Vietnam from the National Geodetic and
Cartogrpahic Service, Hanoi.
Costs are $0.0152 per km2 or $5,000 total (one-time license fee).
No other details are known.
(90) The following companies may be able to supply data for Eastern Europe and
Korea.
Paradigm Sim Tel: (214) 960-2301
Texas (?)
USA
This company is a US Department of Defence sub-contractor which provides
visual terrain databases for military and commercial users.
Land Info Tel: (303) 369-6800
Aurora, Colorado
USA
Primarily a mapping company, they can extract DEMs from maps and output
to common formats. Costs is $1200 per map plus $100 for the DEM data. A
typical map is 1:250 000.
Autometric Tel: (314) 770-1421
5301 Shawnee Rd.
Alexandria
VA, USA
This company provides terrain databases with built-in DEM/DTED editing
with import/export.
(91) GRID Bangkok will become the regional repository for regional
thematic datasets.
Contact:
Surendra Shrestra Tel: + 662 5245365
Bangkok, Thailand Fax: 5165125
UNEP, Email: surendra@emailhost.ait.ac.th
Asian Institute of Technology
UNEP-GRID Dataset Catalogue
---------------------------
BAN 0004 Elevation map of Bangladesh from Global Elevation data
ETOPO5 Vector Bangladesh Unknown 5 minutes 130 kB
BUR 0004 Elevation map of Burma from Global Elevation dataset ETOPO5
Vector Burma Unknown 5 minutes 1.37 MB
CAM 0007 Elevation map of Cambodia from Global Elevation dataset
ETOPO5 Vector Cambodia Unknown 5 minutes 480 kB
GLB 0004 Global Elevation map "ETOPO5" Raster Global Unknown 5
Minutes 19 MB
INO 0004 Elevation map of Indonesia from Global Elevation dataset
ETOPO5 Vector Indonesia Unknown 5 Minutes 2.7 MB
LAO 0004 Elevation map of Laos from Global Elevation dataset ETOPO5
Vector Laos Unknown 5 Minutes 420 kB
MAL 0004 Elevation map of Malaysia from Global Elevation dataset
ETOPO5 Vector Malaysia Unknown 5 Minutes 536 kB
PHI 0003 Elevation map of Philippines from Global Elevation data
ETOPO5 Vector Philippines Unknown 5 Minutes 986 kB
VIE 0004 Elevation map of Vietnam from Global Elevation dataset
ETOPO5 Vector Vietnam Unknown 5 Minutes 607 kB
Asia : Boundaries, Soils, Vegetation
Bangladesh : Boundaries, Hydrology, Transportation, Drought
Burma : Boundaries, Hydrology, Transportation
Cambodia : Boundaries, Hydrology, Districts, Geology, Soils,
Precipitation, Climate, Transportation, Drainage,
Landuse, Vegetation
China : Disasters
Global : Ecosystems, Soils, Cultivation, Albedo, Climate,
Wetlands, GVI, Temperature, Precipitation,
Methane Emission, Soil Degradation, Boundaries,
Socio-economic
India : District Boundaries
Pakistan : District Boundaries
Indonesia : Boundaries, Hydrology, Transportation
Laos : Boundaries, Hydrology, Districts, Geology, Soils,
Precipitation, Climate, Transportation, Drainage,
Landuse
Malaysia : Boundaries, Hydrology, Transportation
Nepal : Boundaries, Hydrology, Geology, Transportation
Philippines: Boundaries, Hydrology, Transportation
S.E. Asia : AVHRR Sat. Images, IUCN Forest Map
Thailand : Boundaries, Hydrology, Forest Classification,
Transportation
Vietnam : Boundaries, Hydrology, Transportation
DEM SOFTWARE
------------
(A) Peter Guth has developed a super little PC-based program for DEM Mapping
and analysis called MICRODEM+ which is freely available. MICRODEM+ reads
USGS, DMA DTED, NOAA EEZ, TerraBase and ASCII xyz DEM formats, in addition
to satellite image data (TIFF, LandSat and SPOT) and map data in USGS DLG
or US Census Bureau TIGER formats. It forms an impressive geomorphometric
toolkit. Contour, slope, aspect and concavity/convexity maps can all be
produced (with several different slope and aspect algorithms), along with
cross-sections through to 3D perspective displays, with overlain thematic
data and fully animated fly through capabilities. Semi-variograms, fast
fourier transforms, statistical slope orientations, frequencies, basin
delineation are all possible. On top of all of that, the effects of
different map projections can be demonstrated and even animated
continental drift simulations are included. Demonstration data is
provided. There are also other programs including TS-PLOT and, for
oceanography, WAVES, TIDES, DUCK beach profiles and MARINE GEOLOGY.
These programs are all available via anonymous ftp from ftp.nadn.navy.mil
(Numeric IP address is 131.121.163.70), in the pub/oceano directory. Then
choose either the microdem and oceanlab directories.
A version is also available via Sol Katz's ftp site at URL:
ftp://ftp.blm.gov/pub/gis/microdem.*
(That is anonymous ftp to "ftp.blm.gov" and it is in the directory
"/pub/gis/", called "microdem.xxx", where xxx is the version of the
software).
Peter will be adding additional programs, data and documentation as time
goes on and providing updated versions of the programs. He is interested
in suggestions, comments and ideas on how to improve the programs.
Contact:
Peter L. Guth Email: pguth@charleston.nadn.navy.mil
Oceanography Department
U.S. Naval Academy
Annapolis, Maryland, USA
(B) Kevin Wooley has produced a shareware package called 'Landscape Explorer'
running on a Windows PC (with at least 4MB RAM). Version 3.50 is new in
October 1995. It can import data from digital files or scanned map images
(allowing you to automatically trace contours) to create 3D models of
landscape surfaces. These can be viewed from any position and drawn in
many different schemes such as Summer and Winter colours, GIS data mapping
and wire frame. Supports USGS DEM 7.5' (provided they conform to the
official format of blank-padded and CRLF-terminated 1024-byte records)
and UK OS NTF LandRanger file formats. Version 3.0 adds a much enhanced
user-interface, animation, 256 pseudo-realistic colour schemes and
"state-of-the-art" interpolation facilities. I'm told it doesn't handle
very large grids, and that the unregistered version allows only 16 colors,
and an even smaller grid.
In addition, a new program called Landscape Animator allows the creation of
views from inside the overlay and the generation of fly-throughs. A small
demonstration file available via Kevin's home page (see below) shows a
flight up the south col of everest using the Royal Geographical Society
'Hollings' map.
You can get the software via ftp to "garbo.uwasa.fi" as
"/windows/graphics/land350.zip" or "oak.oakland.edu" in the directory
"SimTel/win3/gis". The software is also available via Kevin's home
page at http://www.stir.ac.uk/~kjw1r/home.html
The shareware registration costs GBP40/US$65. A non-shareware 'pro'
version is also available that includes image and object overlay
facilities, AutoCAD DXF export and VistaPro interfaces.
Further information from:
Dr Kevin J. Woolley Phone: 01786 825406
WoolleySoft FAX: 01786 825406
Humblesknowe Cottage, Email: <100332.2104@compuserve.com>
Ramoyle, Dunblane,
Perthshire, SCOTLAND FK15 0BA
(C) Sol Katz (skatz@dsc.blm.gov) maintains an archive of GIS programs and some
data which accessible via ftp to "ftp.blm.gov" in the directory "/pub/gis".
The files which are relevant to terrain modelling include:
000-index Index File
contour.zip f77 src for contouring a grid
dem2dat.zip convert dem to xyz, qb src and exe
dem2xyz3.zip convert dem to xyz, c src and exe, works on 3 arc-sec, v3
demconv.f77 dem to row,col,z, f77 src, needs work
demout.f77 create a usgs dem from a grid. f77 src
nyc.dxf contours (20') of west half of New_York_e.dem, lat long
renka.f77 point triangulation to grid, f77 src only
There are also a number of different PC-based GIS packages and lat/long
<-> UTM inter-conversion programs.
(D) SAGE Capture is a program running under DOS windows (with command
buttons). It translates between a variety of raster and vector file
formats including export filters to VistaPro DEM and BIN formats.
With the vector to raster converter you can create raster point/line,
polygon and DEM surface maps from vector DXF data. These maps, once
created in raster format, can then be transferred to a variety of other
raster systems, including Arc/info grid ASCII, IDRISI, ERDAS .gis,
TerraScan, PC-MAP, SAGE, VistaPro, ASCII and CSV.
Another utility allows conversion of a landcover map to a VistaPro
terrain type overlay, which can then be used to have VistaPro render
trees, rivers, cliffs and buildings in the correct place on the DEM.
SAGE Capture is US$200 for academic institutions. For more information
look at URL http://www.dlsr.com.au/
Robert J. Raulings, Phone/FAX: + 61 3 9348 9489
Digital Land Systems Research (DLSR), Email: dlsr@werple.mira.net.au
PO Box 4191,
Parkville, Victoria 3052,
Australia
(E) Ruediger Koethe has a program called SARA which can compute morphometric
relief parameters such as slope, aspect, curvature and analytical
hillshading from a DEM. It is also able to automatically derive
geomorphographic features:
- (linear) flow lines, crest lines, breakes in slopes (edges) and
- (areas) summit areas, valley grounds, slope areas, closed depressions,
areas with divergent and convergent flow paths, subdividing of
slopes etc.
A WWW page (in German, although an english vesion should be available
shortly) is available at the URL:
http://uggg-pc-s1.uni-geog.gwdg.de/pg/sara/sara-d.htm
SARA runs under VMS, SunOS and OSF/1 (with other UNIX versions planned for
next year). There is a nominal charge of DM 300. The user interface, the
online documention and the user manuals (approx. 200 pages) are currently
only available in German.
For further information, contact:
Ruediger Koethe Tel: +49 551 / 39-8088
Geographisches Institut FAX: +49 551 / 39-8006
Universitaet Goettingen Email: koethe@uggg01.dnet.gwdg.de
Goldschmidtstr. 5
D-37077 Goettingen
Germany
(F) ANUDEM has been designed to produce accurate digital elevation models with
sensible drainage properties from comparatively small, but well chosen
input data. ANUDEM calcuates values on a regular grid of a discretized
smooth surface fitted to large numbers of irregularly spaced elevation
data points, contour line data and stream line data. The program imposes a
global drainage condition which automatically removes sinks where
possible.
ASCII, Arc/Info and IDRISI formats are read directly. Output DEMs may be
written as either as a lattice or x,y,z in both ASCII and
Arc/Info-compatible formats.
The program is written largely in FORTRAN 77 and is normally distributed
in binary for SUN UNIX and DOS Windows platforms. Where these platforms
are not supported, FORTRAN source code may be supplied to academic
institutions.
The cost of a single-site licence is AUS$1000 (US$750) or for academic
institutions AUS$600 (US$450).
Much more information is available from the Web via the URL
http://cres.anu.edu.au/software/anudem.html
or alternatively, contact the author:
M.F. Hutchinson, Tel: 61-6-2494277
Centre for Resource and FAX: 61-6-2490757
Environmental Studies Email: office@cres.anu.edu.au
Australian National University
Canberra ACT 0200
AUSTRALIA
(G) Richard Horne has developed a freeware program called 3DEM for Windows 95
and Windows NT. 3DEM version 3.0 provides landscape visualization and
flyby animations from USGS DEM files (including Arc/Info DEMs), Digital
Chart of the World (DCW) files, NASA Mars Viking Orbiter Digital Terrain
Model files, or any topographic data file which consists of a matrix of
elevation data arranged by row and column.
3DEM ray traced landscape images are produced with complete colour control
including artificial illumination as well as colour scaling by elevation.
3DEM will also produce red-blue 3D images for viewing with 3D glasses.
Animations can be created to give a realistic fly-through view of the
chosen landscape.
3DEM version 3.0 is available at the following locations:
ftp://ftp.winsite.com/pub/pc/win95/desktop/3dem30.zip
http://www.winsite.com/pc/win95/desktop/3dem30.zip
(H) TruFlite is a 3D Landscape Rendering software which can read the different
USGS DEM formats, gray-scale images (e.g. LANDSAT), and x,y,z delimited
data.
You can define either a point-to-point flight based on fixed X, Y, and Z
coordinates, or you can click freely on points on your landscape or
texture file to create a flight path. Parameters for focal length, pitch,
roll, dust, light, average height above ground, as well as Z-scale factor
can be set and then TruFlite renders any number of result files, either in
TGA or YUV Chroma format so that they can be encoded into MPEG, FLI or AVI
"movies". There are effectively no size limits.
Additional options allow for conversion of the elevation file into a
colour texture file based on a user defined palette of colours. SPOT,
Orthophoto and other images can be textured mapped onto the 3D surfaces.
Other features include surface interpolation, convolution, rectification
of images where a different projection has been used, merging and
resampling of images.
The program is available in both 16 and 32-bit versions, and requires at
least a 386 and 4MB of memory.
Priced at:
Single license: US $295 (US$195.00 educational)
Site license: US$1950.00 (unlimited use within a department)
Martin D. Adamiker FAX: +43-6246-73042
Kapellenweg 14 Email: martin.adamiker@siemens.at
A-5082 Groedig WWW URL: http://www.truflite.com/
AUSTRIA
Other software packages (in no particular order) which support a reasonable
level of terrain modelling functionality are listed below. An email address or
URL to obtain further information is given where available.
LaserScan Horizon (DEM and TVES components of LAMPS Mapping System)
(email: postmaster@lsl.co.uk)
Arc/Info TIN Module (email: support@redlands.esri.com)
GRASS
ERDAS Imagine
GeoVision Vision*DTM Module
Golden Software's SURFER For Windows
(email: info@golden.com URL: http://www.golden.com/golden)
Intergraph MicroStation/MGE
MapExplorer (Converts USGS data) (email: microinfo@micropath.com)
Map Wizard for Windows (email: microinfo@micropath.com)
MOSS
Panacea (Dr. M.J. McCulloch, University of Nottingham)
PCI FLY and Ortho (URL: http://www.pci.on.ca/)
VistaPro
There are many fewer packages which support true 3D functionality in a
GIS-related environment is:
Dynamic Graphics IVM (Interactive Volume Modeller)
Intergraph MGE Voxel Analyst
Stratamodel Stratigraphic Geo-Cellular Modeling System
MINESoft Techbase
Eric Miller keeps information regarding volume visualization packages
(including pointers to additional information, hardware platforms, etc.).
This can be found at URL http://www.oclc.org:5046/~emiller/misc/volvis.html.
It is usually difficult to get a connection to this server, and even if a
connection can be obtained, my experience is that, data transfer can be slow.
COPYRIGHT STATEMENT
-------------------
(c) Bruce M. Gittings, 1996.
Department of Geography, The University of Edinburgh, United Kingdom.
This document may be freely distributed by any means provided that it is
distributed in its entirety and that this copyright notice is retained. No
other use is permitted without prior reference to the copyright holder.
Specifically, this information may not be incorporated in any publication,
document, report or manual which is sold or otherwise traded (whether for profit
or not) or included as part of a package or product which is so sold or traded.
DISCLAIMER
----------
The University of Edinburgh and I accept no responsibility for any errors in
this list, nor do we endorse any of the data sets or software listed above in
any way.
I have no further information beyond that listed above, and am unable to help
in either obtaining further details or acquiring the data or software
themselves so please don't e-mail me requesting same!
##### End of Final Part of the Digital Elevation Catalogue (36584 bytes) #####
Subject: Digital Elev. Data Catalogue (4/5) [LONG!]
From: bruce@geovax.ed.ac.uk (Bruce Gittings)
Date: 1 Oct 96 00:03:42 GMT
##### Part 4 of the Digital Elevation Catalogue #####
water bodies and rivers, vegetation and administrative boundaries. Two
GEOGIS datasets exist; GEOGIS-25 at 1:25K and GEOGIS-500 at 1:500K.
Complete coverage is available of GEOGIS-500, produced from existing
1:500K maps. GEOGIS-25 layers are still being produced, with planned
completion in 1996. The data source is 1:23K aerial photography. I have
no details as to the form of the topographic layer (whether contours or
spot heights) nor
accuracy or size details.
Data is generally in the Gauss-Krueger co-ordinate system and is
available in either DXF, SICAD-SQD or (for GEOGIS-500 only) EDBS format.
The GEOGIS 500 data is sold per layer for the whole of Bavaria, prices
are 1000 dm for admin. boundaries and 3000 DM for water bodies/rivers.
GEOGIS-25 data is sold by layer in sq. km. tiles; prices are between 1
and 3 DM per tile. The DEM (called DGM-25) is held at 50m resolution,
but is also available at 100 and 200m. The data source was stereo-
photogrammetery. The 50m data costs 15 DM per sq. km., the 100m data 5
DM/sq. km. and the 200m data 3 DM/sq. km. Another dataset which consist
of 20m spaced points is also available (called DGM-5) at 65 DM per sq.
km. Additional topographic data is also available as rasters at 1:25K,
1:50K and 1:100K.
All prices quoted relate to May, 1993. The minimum order is for 300 DM.
Further information from the state surveying office
(Landesvermessungsamt):
Bayerisches Landesvermessungsamt Tel: +49 89 2129-1740
Alexandrastrasse 4 FAX: +49 89 2129-1537
D-80538 Munchen
Germany.
(37) A range of Global and regional terrain and bathymetric datasets are
distributed by the National Oceanic and Atmospheric Administration's
National Geophysical Data Center (NOAA/NGDC).
They have 30' data covering the USA (also available averaged to 1' and 3'
grids as well). The data source is 1:250 000 maps and costs $407.
Bathymetric data includes point bathymetric soundings and gridded data
for U.S. coastal waters. In addition images of parts of the ocean
bottoms are available.
Substantial information about NGDC holdings is available through the WWW
at URL http://www.ngdc.noaa.gov. It is suggested that you select Marine
Geological and Geophysical Data, browse around for information on these
data or run a search for available ancillary.
TerrainBase
-----------
NOAA/NGDC have recently released an elevation dataset caled TerrainBase.
TerrainBase is a compilation of national, regional, and global public
domain DEMs created by numerous creators/authors/agencies, plus digital
bathymetric grids, along with a new mosaic global DEM at 5' lat-lon
gridding which incorporates the most appropriate of these input grids.
The current release of TerrainBase might be considered an extensive
public Beta Test. By "public Beta Test" NGDC mean that the data can be
acquired on CD-ROM for nominal cost (currently $81 plus $10 for handling
orders shipped outside the USA). People that contribute back to NOAA/
NGDC new unrestricted DEMs to improve TerrainBase, or sufficiently
substantial new and valuable documentation or review comments, can become
official data contributors and be entitled to free updates of TerrainBase
or other data (by agreement).
TerrainBase gives full credit to authors/contributors of DEMs. It also
encourages agencies which have high resolution restricted DEMs to
reprocess to a lower resolution and contribute them as part of
TerrainBase.
The following tables lists the source data for TerrainBase, with
approximate coverage area, grid spacing, developer/contributor, and sizes
of datasets. However, not that TerrainBase is an integrated dataset
which will be available on CD-ROM; NOAA/NGDC have no plans to make the
individual source datasets available separately.
Coverage Grid Topography Developer/Contributor Total
Spacing /Bathymetry Samples
----------------- ------- ----------- --------------------- --------
TerrainBase Global 5' Both NOAA/NGDC 9.3M
Global Land 10' Topography FNOC and NCAR 2.3M
Global Oceans 5' Bathymetry U.S. Naval 8.7M
Oceanographic Office
North America 5' Both U.S. Defense 681,000
Mapping Agency (DMA)
Europe 5' Both U.S. DMA 616,000
Conterminous USA 30" Topography U.S. DMA 26.4M
Italy 30" Both Servizio Geologico
Nazionale
Africa 5' Topography Austral. Nat'l Univ. 886,000
Greenland 5'x10' Topography Kort-og 115,000
Matrikelstyrelsen
Australia 5' Topography Austral. Nat'l Univ. 207,000
Brazil Cerrados 2' Topography Centro Int. de 518,000
Region Agricultura Tropical
Chile/Peru/ 3' Both Cornell University 202,000
Chile Trench
Austria 1.5'x2.5' Topography Tech. Universitat 32,000
Graz
Japan, Korea 5' Both U.S. DMA 37,000
Netherlands 3'x5' Topography Tech. Universiteit 5,000
Delft
Alaskan Arctic 30" Bathymetry NOAA/CGS and NGDC 1.8 M
Ocean Coast
Bering Strait Coast 30" Bathymetry NOAA/CGS and NGDC 936,000
Alaska Pacific 30" Bathymetry NOAA/CGS and NGDC 9.5 M
Coast
US Atlantic Coast 30" Bathymetry NOAA/CGS and NGDC 5.1 M
Great Lakes 30" Bathymetry NOAA/CGS and NGDC 2.7 M
US Gulf of 30" Bathymetry NOAA/CGS and NGDC 2.0 M
Mexico Coast
US Pacific Coast 30" Bathymetry NOAA/CGS and NGDC 3.0 M
Hawaiian Islands 30" Bathymetry NOAA/CGS and NGDC 3.8 M
Coast
Puerto Rico Coast 30" Bathymetry NOAA/CGS and NGDC 360,000
Central Northwest 5' Both NOAA/CGS and NGDC 24,000
Territ., Canada
Madagascar 30" Topography USGS EROS Data Center 1.6 M
Dominican Rep., 30" Topography USGS EROS Data Center 635,000
Haiti & Puerto Rico
News on NGDC's developments with DEMs are also on the WWW. The URL for
Topographic Data is:
http://www.ngdc.noaa.gov/seg/globsys/topo.html
Global Land One-kilometre Base Elevation Database Project (GLOBE)
-----------------------------------------------------------------
NGDC is also participating in the Global Land One-Kilometre Base
Elevation database project (GLOBE). This international effort aims to
develop the best available DEM at 1-km (actually 30-arc-second) gridding,
fully quality controlled. The final product is scheduled for public
release in 1997, following internal drafting and alpha testing in 1996.
There will not now be an intermediate version, which was originally due
in 1995.
The general aims of GLOBE are:
1. Develop a 1-km global DEM, by including the best available
datasets and by encouraging specialists to participate in
production and review of the data. The GLOBE DEM will be made
available to the worldwide research community, perhaps on 8-mm
tape or CD-ROM. There may be two versions of GLOBE:
"BAD GLOBE" based on the Best Available Data (BAD), even if some
data are restricted from general distribution. This version
would be distributed in accordance with whatever agreement is
negotiated with contributors of various copyright datasets.
High-quality restricted data may improve the usability of the DEM
for people having access permission. However, data not available
to everyone are of limited value in promoting scientific
advances.
"GOOD GLOBE" based on Globally Only Open-access Data (GOOD). This
is the primary aim of GLOBE; to produce an unrestricted DEM that
is the most useful database for everyone.
NB. As of 1st June, 1995, NGDC state there is now likely to be
only one version of GLOBE; the need for a "BAD" GLOBE has been
saved by tremendous progress in obtaining access to appropriate
data.
2. Strengthen international collaboration in the development of
research quality digital global data sets. Adical and cultural
capabilities for international collaboration in the development
of such data.
3. Strengthen social awareness of the need for optimal quality high-
resolution global topographic information, including the
provision of a focus for the timely release of currently
restricted terrain data sets.
4. Supply a "pathfinder" data set to the Earth observation
community.
5. Develop a data structure (nested multi-resolution grid system)
useful for future enhancements such as might come from future
topographic satellite missions.
6. Give the Committee on Earth Observing Satellites Working Group on
Data (CEOS-WGD) a prototype in cooperatively improving vital
data.
Input data and methods used for GLOBE are:
. Elevation contours from the 1:1,000,000 Operational Navigation
Charts digitized into the Digital Chart of the World (DCW), will
be gridded at 1-km nominal latitude-longitude spacing.
. Currently available high-resolution DEMs at higher resolution
than GLOBE's will be sampled and inserted into GLOBE.
. DEMs derived from satellite imagery (stereo-optical and radar)
and altimetry will be added to GLOBE where applicable.
. As available data from the 3 sources above do not currently
provide global coverage, the GLOBE coverage will be filled out by
resampling lower-resolution DEMs (for which there is global
coverage).
Documentation on sources, methods of derivation, quality control
procedures and data characteristics will be provided as text, figures and
maps. Additional data, such as global hydrological networks, land-sea
masks and terrain slope information, are expected to be developed as
byproduct datasets.
NGDC state that GLOBE would be considerably strengthened by additional
participation, contribution of DEMs, etc. They actively solicit
additional contributions; appropriate citations will be given to all
contributed data. NGDC would greatly appreciate any leads which readers
of this catalogue may have - I am happy to pass this information on.
Some notable GLOBE contributors include:
. USGS EROS Data Center, Sioux Falls, USA
. University College London, UK
. DLR-German Remote Sensing Data Center, Oberpfaffenhofen, Germany
An important contribution from the U.S. Defense Mapping Agency (DMA),
derived from their previously unreleased DTED data, with coverage of
about 55+% of the land surface, will make this a valuable data set.
For further information contact David A. Hastings,
(Email: dah@ngdc.noaa.gov), Secretary of GLOBE at the address below or
telephone him on 303-497-6729.
Further details are also on the WWW as:
URL: http://www.ngdc.noaa.gov/seg/globsys/globe.html
NOAA/NGDC can be contacted at:
NOAA/NGDC Tel: 303-497-6338 (bathymetry)
325 Broadway 303-497-6084 (elevations)
Boulder, CO 80303, USA FAX: 303-497-6513
Email: info@ngdc.noaa.gov
NB. NOAA/NGDC will shortly announce a major new elevation data set.
(See also Note (5) for further information about NOAA/NGDC elevation
data)
(38) The Belgian National Mapping Agency is the Institut Geographique National
(IGN). They have two point height datasets covering all of Belgium
called the "DTM Level I" and the "DTM Level II". The coordinate system
for both datasets is geographicals. The DTM Level I has a resolution is
6" x 3" north of 50 degrees north and 3" x 3" south of 50 degrees north,
while the DTM Level II has a resolution is 2" x 1" north of 50 degrees
north and 1"x 1" south of 50 degrees north.
Both are provided in EBCDIC or ASCII in a Belgian National Standard
exchange format on 1600 b.p.i. magnetic tape. English documentation is
available. The cost for DTM Level I is quoted as 250000 BFr, with DTM
Level II at 500000 BFr, which seems very expensive in both cases.
Both datasets are said to be accurate to 30m (90% probability).
IGN are also part way through a programme to digitise all the line-work
from their topographic maps (presumably including contours) and creating
a feature-coded vector database. There are two different scales - 1:10K
and 1:20K. The programme is only approx. 10% complete at present, with a
planned completion date for the entire country of 2000. The data was
original captured using photogrammetery and is in a Lambert (conformal)
co-ordinate system. Costs and formats are unknown, although the data is
thought to be available on 1600 b.p.i. magnetic tape.
NB. 1996: 30m and 100m DEMs are now available which cover the
national area. Prices are as follows (in US dollars):
Per km2 Total Cost Copyright Restrictions
------- ---------- ----------------------
30m $6.0879 $185,760 One-time license fee
100m $0.7892 $ 13,089 " "
For further information contact:
Joel de Smet,
Director General IGN
Institut Geographique National Tel: (???)648-6480
Abbaye de la Cambre 13 FAX: ?
B-1050 Bruxelles (Brussels)
Belgium
(39) The Australian Department of Environment and Natural Resources has data
available for the Murray River flood-plain.
A medium resolution (5m) CD-ROM set (three CD-ROMs) contains: 250 digital
orthophotos, 100m mesh DEM, digital map index, display software (using
Terrascan Lite) with print options examples of merged orthophotos and
satellite imagery.
The DTM data has been mathematically modelled on a 100m mesh grid, from
photogrammetrically derived heights. The orthophoto maps are digital
imagery derived from aerial photography, corrected for camera and
landscape distortions. The imagery can be easily input to a PC, GIS or
simply viewed and processed for planning, development control and
management. The images are stored as generic 8-bit one band data, with
additional ASCII headers for ingestion into various image display
systems, e.g. Terrascan (.tsw), Arc/Info (.hdr) and ERMapper (.ers).
Additional high resolution (1.25m) CDs each contain between 5-7 images
and vary between 80-120Mb. Other data formats can be accomodated on
request. An examples directory contains a data set of Landsat TM data
which is merged with the digital orthophotos at a 10m pixel size.
Cost is AU$400 (including postage and handling) for the 3 CD set at 5m
resolution. The high resolution CDs cost AU$200 each.
Enquiries to and purchase from:
Tom Tadrowski Tel: (61)-68-226-4855
Image Data Services, FAX: (61)-68-226-4906
Resource Information Group,
Department of Environment and Natural Resources
282 Richmond Road, Netley,
South Australia, Australia, 5037
(40) A complete data set of the Philippines is available from NAMRIA, the
National Mapping Agency of the Philippines. This data was produced by
the Swedish Space Corporation using SPOT data in 1987. Contact:
Ricardo Bina, Tel: + 632 8105459
NAMRIA
(41) There is a complete data set of Sweden produced by Swedish Space
Corporation (SSC) a few years ago from LANDSAT DATA, plus a CD series of
Sweden by the National Land Survey. SSC have also carried out work for a
number of other countries in Africa. They will supply lists of completed
projects on request.
Contact SSC at + 468 6276450.
Email: postmaster@ssc.se
(42) The Hellenic Military Geographical Service has released two different
digital elevation data sets for Greece.
A DEM in ARC/INFO GRID format with cell size of 250m created from contour
lines from 1:250 000 maps with the addition of 26000 trig points. This
data covers the whole of Greece and costs 5,000,000 Drachmas (about
$2100). Contour lines digitized from topographic maps at the scale of
1:5000, with a contour interval of 20m. There is currently only limited
availability (33% of the country), with the planned programme completion
in 2000. The data are held as vectors and are available in DXF, Arc/Info
or ASCII formats on floppy disk or magnetic tape. Costs are 60,000
Drachmas per map sheet. The co-ordinate system used and the availability
of documentation are unknown.
NB. 1996: A more recent survey of National Mapping Organisations
quote the 250m DEM data as having 100% coverage of the
national area and costing $0.2 per km2 or $26,391 total
(single-use license).
For further details, contact:
Hellenic Military Geographical Service Tel: ?
Pedion Areos FAX: ?
GR-11362 Athinai
Greece
(43) ISTAR (Imagerie STereo Appliquee au Relief or, in english, Stereo Imagery
Applied to Relief) is a company specialising in DEM production by
automatic correlation techniques. It makes use of aerial photographs or
satellite imagery and markets two products ranges, namely AERIAL and
SPOT. The DEM-derived products include orthoimages, area features by
automatic extraction, linear features by semi-automatic extraction,
computed contours lines and image maps. DEM production may also be based
on digitized contour maps.
Since 1986, ISTAR has produced a total area of 1 million sq.km. from SPOT
images at different resolutions (typical pixel size: 40m for XS, 20m for
PA; typical Z standard deviation: 1/2 pixel).
ISTAR can meet very large capacity requirements (1 to 20 GB) of complex
databases including standard components (DEMs, Orthoimages, Land Cover
and Vectors Files, Scanned Maps) at different scales and formats. All
products and their references are contained in a price described in
technical documentation.
A price list is available from the company.
For further information contact:
Alain Beinish Tel: +33 93 95 72 30
ISTAR FAX: +33 93 95 83 29
Bat. 2, Espace Beethoven
Route des Lucioles
06560 VALBONNE
FRANCE
The major source of ISTAR data is SPOT satellite imagery. SPOT
encompasses steroscopic satellite imagery from which height information
can be extracted. 10m DEMs are available for any location in the world
via SPOT stereoimagery. SPOT DEMs cover 60% - 100% of the full satellite
image scene size of 60 x 60 km (~37 x 37 miles) with a minimum of 820 sq.
miles. Quarter-scene DTMs are also available. Data are supplied on
media including exabyte, 1/2" tape and CD-ROM.
For further details contact:
SPOT Image Corporation Inc. Tel: 1-703-620 2200
1897 Preston White Drive FAX: 1-703-648 1813
Reston
VA 22091-4368, USA.
In the USA, Francois Zamora is SPOT Image's Digital Elevation Model
Application specialist:
Tel: +1 703 715 3152
FAX: +1 703 648 1813
Email: zamora@spot.com
SPOT IMAGE is a French company, the contact details for the main office
in France are:
SPOT IMAGE Tel: 33-61 53 99 76
BP 4359 FAX: 33-61 28 18 59
F-31030 Toulouse Cedex Telex: 532 079 F
France.
(44) GETECH, a geophysical consultancy based at the University of Leeds in the
U.K., have produced a new version of ETOPO5 (see Note 5) called GLOBAL
DTM5. This has been enhanced using information derived from their
continental scale gravity project data. The most significant
enhancements are in the following areas:
o Africa
o South America
o Australasia
o Western & Eastern Europe and the Former Soviet Union
o China and parts of South-East Asia
o Antarctica
This dataset overcomes problems inherent in ETOPO5, such as systematic
data shifts and low resolution. Like ETOPO5, this is a 5 x 5 minute
dataset (approx. 10km x 10km at the equator), but it incorporates more
than 10,000,000 new data points for increased accuracy.
Data sets incorporated in GLOBAL DTM5 include: heights of gravity
stations ship track bathymetry (limited areas at present), National DTMs,
contour and spot heights from topographic maps, shorelines (for control),
satellite derived heights (very limited at present) and the old ETOPO5.
For North Central Asia (Former Soviet Union east of the Urals) an 8 km x
8 km grid from gravity station heights was used. For the USA the USGS 30
second grid has been desampled to 5' x 5' and for Antarctica the SCAR/BAS
topographic database was used (see Note 29).
Topographic maps have only been digitised where the coverage of gravity
stations and local DTMs is inadequate. ETOPO5 has been used where
nothing else is available. Where used (primarily Canada and Greenland)
ETOPO5 has been shifted by the appropriate 5' or 10' to the east to give
proper registration. Coverage maps for Africa, South America, Europe and
South East Asia/Australasia are included, indicating the contributions of
each data type for that area.
All areas are produced directly at 5' x 5' except for North Central Asia
and Europe, where intermediate local grids at 8 km and 4 km respectively
have been used. Thus east-west resolution at high latitude can be better
than at the equator limited only by the original data distribution except
in these two areas where it is limited by the intermediate grid spacing.
Vertical accuracy of the global DEM varies greatly depending on source
data, but the range is 5cm to 125m. The gravity station heights are very
accurate (5cm to 5m) but are only available in restricted areas. National
DTMs are generally accurate to a few metres. Topographic map derived
heights depend on the contour intervals on the source map (10m up to a
maximum of 250m) and the error will generally be half of this interval.
Costs are $1500 or 950 pounds ($500 or 350 pounds for academic users).
Site licences are available at $3000 ($1000 for academic users).
GETECH also sells a 2.5' (4km) grid for Europe (area between 25 deg W to
60 deg E, and 30 deg N to 85 deg N) at the same prices as the World
dataset above. Resolution of source data ranges between 250m and 10km.
A 3' grid for South America (area between 100 deg W to 25 deg W, and 60
deg S to 25 deg N) will be available by mid-1995. Costs have not yet
been determined.
The data are supplied in ASCII format on ISO 9660 CD-ROM with a graphical
display and extraction program for Windows PCs, together with with
fulltechnical report (also available on the CD-ROM in ASCII and
postscript formats) giving details of data sources and processing
sequences. The CD-ROM is also accessible from Mac and UNIX environments
and the 'C'source code for extraction programs is supplied.
For further details contact:
Geophysical Exploration Technology Phone: (+44) 113 2335240
(GETECH) FAX: (+44) 113 2429234
c/o Department of Earth Sciences Email:info@getech.leeds.ac.uk
University of Leeds Telex: 556473 UNILDS G
Leeds LS2 9JT
United Kingdom.
(45) Environmental Information Center of the Thailand Environment Institute
have almost completed a 1:250K database for Thailand. The database is
currently missing two sheets along Burmese border which are embargoed by
the Royal Thai Army.
The contours will soon be available as compressed (pkzip) DOS Arc/Info
export files for anonymous ftp from ftp://ftp.nectec.or.th in the "/pub/
info/thailand-gis+maps" directory. There are other mapping files
available in this directory, including country-wide maps and satellite
images.
The entire 1:250K database (including landuse, political boundaries,
roads, rivers, etc) will be being put onto CD-ROMs starting in May. The
CDs will be given away free to university, government offices etc. The
full database is unlikely to be available from the NECTEC ftp site due to
its large size.
For further information, contact:
Paul Hastings
Director
Environmental Information Center Email: pjh@nwg.nectec.or.th
Thailand Environment Institute tei!paul@senior.nectec.or.th
National Electronic & Computer
Technology Centre (NECTEC)
National Science & Technical
Development Agency,
Bangkok, Thailand.
(46) EDX Engineering have data coving the United States, Great Britain, Canada
and Mexico.
The Great Britain (ie. not including Northern Ireland) Terrain Data DTM
was digitised from early 20th century British Ordnance Survey maps at
1:63,360 scale with a contour interval of 50 feet. The DEM is at 50m
resolution and has a claimed RMS error of less than 2.5m, comparable with
equivalent digital data from the UK Ordnance Survey. It is distributed
in 20km * 20km tiles, which may be purchased individually. Purchase is
via a one-off payment, with no subsequent charges. The data comes on
CD-ROM or 3.5" floppy disk in EDX compressed format with a program to
convert to ASCII.
Charges: 1 tile $ 80
25 tiles $ 1,850
Full dataset $22,500
They also have 30m, 3'' and 30'' terrrain data coving the USA. Prices
vary depending on area covered, contact the company for more details or a
price list. 3'' and 30'' terrain data covering the entire US (except
Alaska) can be obtained on a single CD-ROM for $3,000.
Canadian terrain elevation data is available for:
All of Canada (excluding NW Terrorities) $12,000
" " (including NW Terrorities) $10,000
Individual Provinces $3,500-5,000
3'' terrain data covering Mexico is also available for:
1 square degree on diskette $ 100
All of Mexico database on CD-ROM $12,000
(255 files)
For further information, contact:
EDX Engineering Inc. Tel: (503) 345-0019
PO Box 1547 Fax: (503) 345-8145
Eugene, OR 97440
USA
(47) A topographic and climate database for Africa (Version 1) has been
developed by the Centre for Resource and Environmental Studies (CRES) in
the Australian National University. A CD containing the data is
available for a AU$20. These data were created using spatial analysis
and interpolation techniques developed by CRES.
The CD contains forty ASCII files containing gridded values of elevation
(DEM) and monthly mean climate for the African continent at a spatial
resolution of 0.05 degrees of longitude and latitude.
The topographic data were digitised from 1:1M scale air navigation
charts, augmented by miscellaneous maps at larger scales in areas where
data on the air navigation charts were sparse. The digitised data
consisted of all spot heights, selected significant points on elevation
contours and selected stream lines. The standard error of the DEM ranges
between about 20 and 150 metres, depending mainly on terrain roughness.
The data are stored as ARC/INFO ASCII integer GRID files (1380 columns by
1450 rows). The longitude limits of the DEM are 17.5 degrees West to 51.5
degrees East. The latitude limits of the DEM are from 35.0 degrees South
to 37.5 degrees North. The elevations are in units of tenths of metres.
Cells with no data (including all areas below the ocean) are denoted by -
9999.
The climate consists of monthly mean and annual mean values of rainfall,
daily minimum temperature and daily maximum temperature at a sufficient
spatial density to support reliable spatial interpolation. These data
were collected over all available years, which was typically 1920 -1980
and compiled from 18 national and international research institutes.
In addition, the CD contains corresponding colour images of each data
file in GIF picture format, and source and DOS executables of programs to
extract the data into IDRISI and GRASS.
Much more information is available from the Web via the URL:
http://cres.anu.edu.au/software/africa.html
or alternatively, contact:
Centre for Resource and Tel: 61-6-2494277
Environmental Studies FAX: 61-6-2490757
Australian National University Email: office@cres.anu.edu.au
Canberra ACT 0200
AUSTRALIA
(48) The Australian Digital Elevation Model (DEM) has been developed developed
by the Centre for Resource and Environmental Studies (CRES) in the
Australian National University, using their ANUDEM package. This
technique ensures that the DEM has a connected drainage structure by
automatically removing spurious pits or sinks. The DEM also incorporates
the stream line network digitized from the 1:2.5 M scale map of
Australia.
This DEM is available covering the whole of Australia at two resolutions
- 3' (1/20th degree) and 1.5' (1/40th degree). It is also available
covering the individual states at 1' or (1/60th degree).
All DEMs are in ASCII format as floating point numbers, with two decimal
places (10f8.2). The limits of the data are -44S, 112E Degrees and -10S,
154E Degrees, with 681 rows and 841 columns in the 3' DEM and 1361 rows
and 1681 columns in the 1.5' DEM. The value -99 is used to denote no
data or ocean.
The pricing (for a single site licence) is AU$2000 (3'), AU$5000 (1.5')
and AU$1500 per state for the 1' model.
The overall accuracy of the DEM is dependent on the local relief of the
actual landscape and the resolution of the DEM, as well as the accuracy
of the elevation and stream line data. In areas with low relief elevation
errors in the DEM approach elevation errors in the original data of about
10 m. In areas with complex terrain elevation errors may be well in
excess of 100m.
The table below gives the sources and estimated maximum errors of the
data used to construct the 1/40th degree DEM.
-------------------------------------------------------------
Data source Number Horizontal Vertical
of points error error
(km) (m)
-------------------------------------------------------------
Point Elevations
BMR ground survey 400 000 0.1 7
Trigonometric points 19 000 0.1 1
Bench marks 83 000 0.5 10
Coastline (1:250 000) 10 000 0.1 0
1:250 000 scale maps 65 000 0.1 10
Stream Lines
1:2 500 000 scale map 15 000 1.0 -
1:250 000 scale maps 7 000 0.1 -
Sink Points
1:250 000 scale maps 400 0.1 10
------------------------------------------------------------
Much more information is available from the Web via the URL:
http://cres.anu.edu.au/software/austdem.html
or alternatively, contact the author:
M.F. Hutchinson, Tel: 61-6-2494277
Centre for Resource and FAX: 61-6-2490757
Environmental Studies Email: office@cres.anu.edu.au
Australian National University
Canberra ACT 0200
AUSTRALIA
(49) The Swiss Federal Office of Topography (Bundesamt fur Landestopographie)
produce two basic elevation datasets, both of which are available for
the whole of Switzerland:
RIMINI 250m Grid
Cost: SFr 5890 or for one sheet (17.5 x 12Km) SFr 40
DHM25 25m Grid or Contours
Cost: SFr 280,000 (very expensive) or for one sheet (17.5 x 12Km)
SFr 5000
Other datasets include national coverage of topographic mapping (as
point, line and raster) at 1:200K scale (called LK200), 1:500K scale
(LK500) and 1:1M scale (LK1000). Costs are unknown. Programmes are
under way for capture of 1:25K (LK25) and 1:50K (LK50) scale mapping as
link-node vector and also as raster data (from photogrammetry and paper-
based maps) which should be complete by 2000. A similar project to
capture 1:100K data (LK100) should be complete by 1998.
For further information or to order, contact:
Bundesamt fur Landestopographie Tel: +41 31 963 23 21
Seftigenstrasse 264 FAX: +41 31 963 24 59
CH-3084 Wabern
Switzerland
(50) Small scale topographic data has been produced for the national area of
Greece. The data is not yet available and future availability is
unknown. No other details are available at present.
Contact:
Cyprus
Department of Lands and Surveys
Archbishop Makarios III Ave.
CY-Nicosia
(51) Raster topography, vector topography, link/node topography and digital
height models are available for Denmark. All data is based on the UTM-32
coordinate system.
The digital height model contains height points and is available in DXF
and DSFL format. Scale, resolution, medium and price are unknown.
Topography data is available from scanned maps. Raster topography data
is available at the 1:25 000, 1:50 000, 1:100 000 and 1:250 000 scales.
Vector topography data is available at the 1:200 000 scale. Prices are
unknown. Denmark 1:750 000 topography (elements unknown) is available
for the price of 8.000 Dkr.
Manually digitised link/node topography data is also available at the
1:500 000 and 1:1 Mio. scale
Contact:
Denmark
Kort- og Matrikelstyrelsen
Rentemestervej 8
DK-2400 K benhavn NV
(52) The production of Automated Charts, Europe (PACE) 1:500 000 dataset and
Digital Terrain Elevation Data (DTED) area available from:
Great Britain
Directorate of Military Survey
Feltham
The coordinate system of both datasets is geographicals.
The PACE dataset covers the geographical extent 46 N..61 N ; 18 W..18 E
and also covers hydrography, culture, names and air-information.
Elements are vectors, points and heights.
The DTED data covers the national area to a resolution of 1"x1".
Currently only data for the area south of Fort Williams is available,
future availability is unknown.
(53) The DTM-100 dataset contains spot height, covers the national area and
uses the EOTR coordinate system.
Contact:
Foldmeresi es Taverzekelesi Intezet - FoMI Tel: ++36-1-1113431
Sas utca 19. Fax: ++36-1-1126480
H-1051 Budapest
Hungary
The DTA-500 and DTA-200 topography datasets have partial geographic
extent and use EOTR / Gauss-Kruger coordinate systems. The DTA-50
datasets uses the EOTR coordinate system only. The availability of these
datasets is unknown. For more details contact:
Magyar Honvedseg Tel: ++36-1-?
Toth agoston Terkepeszeti Intezet Fax: ++36-1-?
Szilagyi E. Fasor 7-9.
H-1025 Budapest
Hungary
The Digital Terrain Model 200m and 1km datasets contain absolute and
relative height points. Both use EOTR / Gauss-Kruger coordinate systems.
Both datasets cover the nantional area and are available from:
Tavkozlesi Kutato Intezet Tel: ++36-1-1355560
Gabor aron utca 65.-67 Fax: ++36-1-1353900
H-1026 Budapest
Hungary
Prices for these datasets can be worked out through a bilateral
agreement.
(54) The Ireland office of the Ordnance Survey can be contacted at:
Ordnance Survey Office
Phoenix Park
IRL-Dublin 8
Ireland
The total availability of 1:50 000 topography data is planned for 1997.
Other datasets should be available now.
All data covers the whole national area except for the 1:2 500 data which
covers 90% of the national area.
All data uses the Irish Grid coordinate system.
See note (4) for information on the NTF transfer format.
(55) The Serie (r) dataset was produced from scans and covers the national
area, It's availability is ~80% for contours and ~15% for hydrology. The
Serie (n) data is produced by photogrammetry and covers 20% of the
national area. Only ~1% of the Serie 25 (n) data is available and future
availability is unknown.
The Serie 50 dataset covers 65% of the national area and 3% of the
dataset is available. Future availability is unknown.
The Serie 250 dataset covers 90% of the national area. 5% of it is
available and future availability is unknown.
All of the contour data from the "1:500 000 Data Base" is available. The
data uses the Lambert (conformal) coordinate system.
A 20m DEM covering half the national area is also available for $3 per
km2 or $488,051 total (one-time license fee).
Contact:
Institutio Geographico Militaire
Via Cesare Battisti 10
50122
Firenze (Florence)
Italy
(56) Only portions of these link/node topography datasets for the Netherlands
are currently available. Planned complete availability for the datasets
are as follows:
Dataset Year
----------------- ----
1:10 000/1:25 000 1998
1:50 000 1997
1:100 000 2000
1:500 000 2000
The 1:250 000 Data file is completely available and is cartographic data
containing vectors and qualities set to the UTM coordinate system.
The 3'x6' DEM has horizontal accuracy of 130m CE 90% and vertical
##### End of Part 4 of the Digital Elevation Catalogue (39879 bytes) #####