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This page updated: October, 2002

Version 1.2 at winsite as dtm12.zip includes source code

DTM Digital Terrain Mapping

DTM Menu (Bermuda Triangle)

Images and Data Information
overall DEM note is the same text attached to world image below: Etopo5 dem Data Information.
DEM data sources and ideas ~ todo list
.tpcfg Read Me file
.tpcfg file howto
Map Projection parameters another way Map Projection parameters another way Map Projection parameters
Map Projection input ranges

934 USA 1 Degree DEMs ~10G= 2.5G=1G

DEM cells overlay

425 Alaska 1 Degree DEMs 2G=572M=153K

Alaskan DEM cells overlay

Etopo5 dem Data Information

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Copyright © 1991..2002 by Ivan Lee Herring