| Digital Data.
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| The following links allow you to download digital
mapping data including Digital Elevation Model (DEM) files, as well as
aerial photos, satellite images and topo-maps. DEM are used files provide
terrain model overlays for you cave files. There are also links to
information on converting SDTS files to the standard DEM format used by
COMPASS. |
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Basic Information |
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Download DEMs |
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| Download Topographic Maps |
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Libre
Project.- Free 7.5 minute topographic images (DRGs)
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Images and Aerial Photographs |
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| Cave Surveying Tools |
Auriga - Auriga is a program that
allows cave data to be entered, edited and plotted on any Palm,
hand-held computer. Auriga data can be imported into Compass.
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| GIS |
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ArcExplorer. ArcExplorer is a free viewer
that is available from ESRI. It allows you to view Shapefiles and many other
data types including maps, images and aerial photograph.
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ArcView 60-day Trial. ArcView is the main
GIS product from ESRI. This 60-day trial version allows you to experiment
with cave data and GIS.
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File Converters. Here are some tools that can be used to convert cave
files between different formats. |
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Electronic Surveying Tools. We are starting to see useful electronic
survey gear. |
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COMPASS Related Pages. |
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Miscellaneous. |
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British Cave Research Association (BCRA). -
Includes Compass Points Magazine
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Caver's Digest
- Caver's Mailing List - (COMPASS Releases are announced here.)
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NSS Home Page
-(National (USA) Speleological Society) Home Page. Lots of Cave Related
Information.
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Berie Szukalski Web Page. ESRI
has been a strong supporter of cave-relative projects and Bernie has been
the main driving force behind that support. This is a very nice web page
with lots of interesting cave-related information.
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