-------- Original Message --------
Subject: FWD: FWD: NIMA's TLM's]
Date: Mon, 14 Jul 2003 12:52:09 -0500
From: Kent Lee <[log in to unmask]>
Organization: Eastview Inc.
------------------
Dear Arlyn, List:
NIMA TLMs are indeed bona-fide topographic maps. There are the direct
decendants of the older AMS topographic maps, which are found in many
map libraries across the USA and elsewhere as a result of previous
federal library depository programs. Most often they are found at
1:50,000 scale, but increasingly they have been produced at 1:100,000
scale as well. TLMs can also be produced at the 1:25,000 scale.
Typically they are grouped in an alphanumeric series by geographic
region, for example:
E732 (Haiti); E733 (Dominican Republic); TL7014 (Vietnam); etc.
NIMA TLMs are produced for virtually all countries of the world, but
most are restricted. Some countries/areas for which TLMs have been
released for public purchase in the United States include:
Latin America: Dominican Republic, El Salvador, Guatemala, Haiti,
Honduras, Nicaragua
Southeast Asia: Cambodia, Laos, Vietnam
Europe: Bosnia, Herzegovina, Serbia, Kosovo Montenegro
Africa: Burundi, Tanzania, Uganda
For US territory and possessions, TLMs exist in significant numbers and
are not to be confused with USGS maps. In fact, since they are produced
by a military authority, they often provide an interesting contrast to
civilian-produced maps, and can be both more recent than USGS maps or
contain significant information not found on USGS maps.
Shelf-ready digital permutations of TLMs also exist. In raster format
these are known as ADRGs (Arc Digital Raster Graphics); in vector form
they are known as VMAP-2. This latter data type was wholly withdrawn
for public sale by NIMA following the September 11, 2001 terrorist
events. However the vector data content is in principle no different
from the paper map content, which does remain available for public sale
and public access in many libraries.
A number of NIMA TLMs are co-produced with the respective local map
authorities. In some cases this leads to an interesting situation where
the maps are not released for public sale in the USA by NIMA, but are
available for public sale and export from the partner country. Panama
and Thailand are such examples.
Finally, it should be noted that NIMA (formerly Army Map Service/AMS,
formerly Defense Mapping Agency/DMA) is on the verge of a new name
change: National Geospatial-Intelligence Agency (NGA). Yesterday's New
York Times (Sunday's Week in Review section) gives more details.
Best,
Kent
Kent D. Lee
President/CEO
East View Cartographic, Inc.
3020 Harbor Lane N.
Minneapolis, MN 55447 USA
Tel: 763-550-0961
Fax: 763-559-2931
Email: [log in to unmask]
URL: www.eastview.com, www.cartographic.com
---------- Forwarded Message ----------
FROM: Kent Lee <[log in to unmask]>
TO: Kent D.Lee <[log in to unmask]>
DATE: Fri, 11 Jul 2003 16:28:45 -0500
RE: FWD: NIMA's TLM's]
---------- Forwarded Message ----------
FROM: Johnnie Sutherland <[log in to unmask]>
TO: [log in to unmask]
DATE: Fri, 11 Jul 2003 16:13:43 -0400
RE: NIMA's TLM's]
-------- Original Message --------
Subject: NIMA's TLM's
Date: Fri, 11 Jul 2003 12:05:42 -0500
From: "Booth, Arlyn" <[log in to unmask]>
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Has anyone used NIMA's TLM's (topographic line maps at 1:50,000)? NIMA
produces the ONC's at 1:1,000,000, the TPC's at 1:500,000, the JOG's at
1:250,000, and the TLM's at 1:50,000. I've never heard the TLM's
discussed
at any map library meetings or in the map library literature. But
apparently
they are available for purchase from some vendors since they are
unclassified. It looks from the NIMA web site that they are not full
USGS
topo maps, hence the term "line" I suppose. Would they still be as
useful
for the same purposes as the full topo for an engineering firm?
Thanks.
Arlyn Booth
Map Coordinator
Illinois State Library
300 S. 2nd, Rm. 305
Springfield, IL 62701-1796
(217) 558-4140
FAX (217) 557-6737
[log in to unmask]
Jesse White, Secretary of State & State Librarian
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