The U.S. Government's role in imagery and geospatial data resources on the WWW is so pervasive that it deserves its own directory. The entries that follow are not comprehensive, but we hope they are useful.

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  9.  (Includes Department of Defense; U.S. intelligence
    organizations; private monitors of military and intelligence
    organizations; and U.S. government gateways to military and
    intelligence resources on the WWW)

1. Agriculture, U.S. Department of and U.S. Forest Service

United States Department of Agriculture Home Page.  The site is located at http://www.usda.gov.

USDA Forest Services Remote Sensing Applications Center (RSAC)
The Remote Sensing Applications Center (RSAC),  is organized into four program areas to provide technology evaluation, development, and training support in the use of remote sensing, Geographic Information Systems, image processing, and Global Positioning Systems for all resource applications.   The site is located at http://www.fs.fed.us/eng/remsense/rem/index.htm.

2. Census Bureau

U.S. Census Bureau
Main home page

Census Bureau Search Tool
Http://www.census.gov/main/www/srchtool.html. Offers links to the Census Bureau's library of on-line documents and files. Provides WAIS searching, a U.S. gazetteer, datamaps and a staff directory.

Tiger Mapping Service
Tiger is Census' incredible coast to coast digital map data base of demographic, economic, and related census information. The '97 Tiger/Line data may be obtained at the following site: http://tiger.census.gov/.

U.S. Bureau of Census
U.S. Bureau of Census on-line gazetteer.  For U.S. locations only.

3.  Center for Disease Control and Prevention

Public Health GIS News and Information Newsletter
The US Center for Disease Control and Prevention publishes this bi-monthly newsletter on all aspects of GIS use in public health and epidemiological applications.  It is available at http://atsdr1.atsdr.cdc.gov:8080/hsph71-2.html#gis or by contacting its editor at cmc2@cdc.gov  or 1-301-436-7904 x146.
CDC's Agency for Toxic Substances and Diseases Registry maintains and unusually complete home page on scores of public health and and toxic research subjects; see http://atsdr1.atsdr.cdc.gov.

4.  EPA

Environmental Protection Agency - EPA - Home page
The EPA general home page at http://www.epa.gov, provides access to geospatial and environmental information including landuse/landcover digital data from the USGS Land Use Data Acquisition (LUDA) Program. These data are useful for environmental assessment of land use patterns with respect to water quality analysis, growth management, and other types of environmental impact assessment. For web access open the URL: http://www.epa.gov/docs/pubwais.html.

To access this data through anonymous ftp go to ftp:// ftp.epa.gov. Logon as Anonymous and use your email address as your password. Change your directory cd/pub/EPAGIRAS.

EPA National GIS Program
Http://www.epa.gov/ngispr serves as a focal point for GIS issues within the EPA. The program is responsible for maintaining an agency wide support network plus sharing GIS data and expertise.

EPA Spatial Data Library System
A repository for the agency's new and archival geospatial data holdings located at http://www.epa.gov/enviro/html/esdls/esdls_over.html.

ENVIROFACTS, available at http://www.epa.gov/enviro/index_java.html, provides public access to EPA Program Systems data and contains data from the EPA's CERCLIS data base, the Permit Compliance System and the Toxic Release Inventory System. A prototype system provides cross-link information on chemical hazards from the PCS, RCRIS, and TRIS. Future Plans include access to the U.S. Census Summary Tape File (STF) data for each county in the U.S.

1987-1992 Toxic Release Inventory ARC/INFO Coverage
The TRI compiles disclosure statements from companies that generate toxic waste. It includes facility ID, facility name, facility address and latitude/longitude, chemical releases by year and transfers by medium, quantities released, and other information. To access this data through anonymous ftp, ftp.epa.gov. Logon as Anonymous and use your email address as your password. To change the directory enter cd: pub/gopher/TRI_Coverages. Enter the following commands to retrieve documents:

get metadata.txt

get doc2.txt

get doc3.txt

get doc4.txt

5. Federal Emergency Management Administration (FEMA)

FEMA Home Page
FEMA provides disaster mitigation and emergency support services throughout the world.

6. US Geological Survey

USGS Home Page
Key USGS home page, http://www.usgs.gov, includes reports, administrative information and links to most other sources of USGS geospatial data.

USGS Global 30 Arc-second Elevation Data (GTOPO30)
This USGS/United Nations joint effort provides 1-km elevation data, slope and watershed raster data worldwide.  The data resolution is comparable to 1-km AVHRR satellite imagery.  A related project provides land cover data at 1-km resolution; see http://edcwww.cr.usgs.gov/ landDAAc/glcc/glcc_na.html.

Federal Geographic Data Committee
This site, http://www.fgdc.gov, includes links to the National Geospatial Data Clearinghouse, plus entries for federal, state, university, thematic, foreign, commercial, and miscellaneous data sources.

Human Impacts Mapping From USGS-NASA
The EROS/Ames research group provides a bridge between basic research and applications for earth science and resource management. This site includes images and in-depth information on current projects in: temporal urban mapping, human induced land transformations, land cover data, elevation framework data base and environmental data systems research. Demonstration projects have been conducted in the San Francisco Bay and Washington DC-Baltimore regions. The site is located at http://geo.arc.nasa.gov/usgs/erosames.html.

Landsat Archive
Although Landsat is operated by NASA, its imagery is archived and distributed by USGS.  Landsat's mission "to provide for repetitive acquisition of high resolution multispectral data of the earth's surface on a global basis." A comprehensive guide to Landsat data is available at this location, http://grid.cr.usgs.gov/landsat/.

Landscape Transformations -- (formerly HILT)
This site's  maps display patterns and rates of human induced land transformations at the regional scale for the last 200 years, and make predictions for the next 200 years. Through the Urban Dynamics program, USGS is examining the impact urbanization has on the landscape. After two pilot studies USGS developed the approach and a number of preliminary products, they are initiating the study of four additional super-metropolitan regions over the next three years. This links to the USGS San Francisco Bay project via http://urban.wr.usgs.gov/urban.html.

National Geospatial Data Clearinghouse -- NGDC
This address, http://fgdc.er.usgs.gov, provides access to metadata describing remote sensing data sets. The information is available in electronic form through the USGS node of the interagency National Geospatial Data Clearinghouse (NGDC).

USGS Biological Resources Division, Remote Sensing Unit
USGS Patuxent Wildlife Research Center
11510 American Holly Drive
Laurel, MD  20708-4017
Tel:     +1 301-497-5636
Fax:    +1 301-497-5666
Email: ian_thomas@nbs.gov

USGS Digital Elevation Model Data Formats (DEMs)
DEMs are civilian cousins of NIMA's higher accuracy DTEDs.  DEM data information can be found at http://rockyweb.cr.usgs.gov/nmpstds/demstds.html.

U.S. Geological Survey Gazetteer
This gazetteer includes U.S. territories and Antarctica place names.  It can also be accessed via Yale University at http://www.peabody.yale.edu/other/gnis.

 USGS Earth Observation Center National Satellite Land Remote Sensing Data Archive
The National Satellite Land Remote Sensing Data Archive located at http://edc.usgs.gov/programs/nslrsda/search.html provides preservation of, and access to all non-classified, U.S. government satellite-acquired land remote sensing data. The Archive includes data generated by the Landsat system and by other systems licensed by the U.S. government, plus some data collected by foreign ground stations and sensor systems. The Archive currently includes all minimally processed U.S.- held Landsat 1-5 Multispectral Scanner (MSS) and Thematic Mapper (TM) data that is referenced in the EDC Landsat data base.

USGS EROS Data Center
The EROS Data Center (EDC), is among the best of the U.S. government sites concerning remote sensing. It provides access to available declassified intelligence satellite photography, Landsat imagery, GLIS, (for access to GLIS see below) and a comprehensive collection of geospatial data on the United States. It is located at http://edcwww.cr.usgs. gov/eros-home.html

USGS Global Land Information System -- GLIS
The Global Land Information System (GLIS) is an on-line, interactive source for information about the Earth's land surface. GLIS permits on-line browsing and ordering from very large libraries of government imagery, including U.S. government, AVHRR, SIR, Canadian and European data. GLIS includes regional, continental, and global land information on land use, land cover, cultural and topographic data, and remotely sensed satellite and aircraft data. GLIS is continually updated. On-line requests for earth science data can be placed via GLIS. Price and ordering information is available through the producing organization.GLIS can be accessed at http://edcwww.cr.usgs.gov/glis/glis.html.  GLIS provides access to declassified U.S. intelligence satellite imagery as it becomes publicly available/

In addition to the WWW site, GLIS system software and some accompanying data are available free of charge through these three interfaces:

  1) ASCII Text Interface: Internet users can access the text-based functions through the commands TELNET glis.cr.usgs.gov or TELNET Modem users can access the text-based system by setting their modems to 8 bits, no parity, and 1 stop bit, and then dialing 605-594-6888.

  2) PC Interface (Maps and Graphics): uses PC PC-GLIS software as an enhanced graphic front end to GLIS. This allows interactive selection of geographic areas and linking images with maps. PC-GLIS software is free of charge. To request the software e-mail to glis@glis.cr.usgs.gov.

  3) X-Terminal Interface: similar to PC Interface, but faster and more powerful. Requirements to run a local X-GLIS client on a workstation include a SUN 4 (SPARC) UNIX with a 4.1.1 or greater operating system; a connection to Internet with the ability to connect to xglis.cr.usgs.gov (; and a GLIS directory with a minimum 20 megabytes of hard disk space. The X-GLIS client software can be obtained by anonymous FTP at edcftp.cr.usgs.gov. Use your e-mail address as the password, then go to the /pub/software/xglis directory.

USGS Scientific Assessment and Strategy Team -- SAST
The Scientific Assessment and Strategy Team (SAST) provides scientific assistance for flood recovery and river basin management in the Upper Mississippi River Basin. SAST has created a sophisticated database concerning flooding, agriculture, geology, and human effects in 13 states in the upper midwest, including Montana, Illinois and Missouri. The site is located at http://edcwww.cr.usgs.gov/sast-home.html.

USGS San Francisco Bay Project
This is a demonstration that fuses many layers of imagery and geospatial information about the San Francisco Bay and Delta area. This site, http://sfbay.wr.usgs.gov/, features point-and- click selection of digital maps, data on water flow, hazards, water quality, plus zooming to the resolution you choose. The project includes display of human impact on ecology of the region charted over several hundred years.

USGS Land Use and Land Cover Project -- LULC
The project aims at devising a standard land use classification scale integrating land use and land cover data on the Vancouver, WA area. The site, located at http://nsdi.usgs.gov/products/lulc.html, includes sophisticated LULC sample files.

USGS National Water Mapping Information System
This site includes tens of thousands of records on stream flow throughout the continental United States, with some online records dating back more than a century.  Most of the data is contemporary, however, and useful for emergency management, pollution tracking, licensing decisions and water rights disputes.
USGS Office of Water Information
440 National Center
Reston, VA  20192
Tel:     +1 703-648-5604
Fax:    +1 703-648-5644
Email: gwendt@usgs.gov

7. Library of Congress Mapping Resources

Library of Congress Center for Geographic Information
This is a multi-million dollar project intended to provide online access to tens of thousands of maps. Only the first phases are currently available, though LOC does provide many online services via http://www.loc.gov. The current exhibit tracks the building of the nation's capital. The site also has links to motion pictures and civil war photographs.

8. Military - and Intelligence - Related Imaging Sites

Ames Research Center
Aircraft Data Facility
MS 240-6

Medium Altitude Missions Branch
MS 211-12

ATRWG - Automatic Target Recognizer Working Group
ATRWG's stated goal is to advance state-of-the-art technology in target recognition so that ATRs may be applied to DoD projects.  Primary projects include efforts to standardize imagery data formats, and to establish uniform criteria for the evaluation of ATR performance.  The site is located at http://mbvlab.wpafb.af.mil/atrwg/info/info.html.

Acronyms, Military and Space
Brought to you by Fort Gordon, it contains an alpahbetical search.  The site is located at http://www.gordon.army.mil/roa/aftb/soup.htm.

Advanced Projects Research Agency (ARPA)
The Defense Department's primary high tech research agency. Located at http://www.arpa.mil

Air Force Global Weather Center - Offut AFB (AFGWC)
The USAF Global Weather Central ( http://afwin.offutt.af.mil:443) is collocated with the Strategic Air Command (http://www.stratcom.af.mil/index.html) at Offut AFB near Omaha, Nebraska.  The GWC is the USAF command and control base as well as the central processing facility for for DMSP weather satellite system.

Air Force Space Command (AFSPC)
This is the home page for the U.S Air Force's command-level organization for space-based communication, earth observation and space warfare activities.  This site is collocated with U.S. Space Command http://www.spacecom.af.mil/ usspace/index.htm, which is tasked with providing inter-service coordination of U.S. space war strategy, tactics and day-to-day activities.

Air Force Space Page
Home page of the Air Force Space and Missile Systems Directorate for Program Management.  Many links to all aspects of aerospace.

Air Force WWW Gateway
Good general gateway to US Air Force WWW sites at http://www.af.mil.

Army WWW Gateway
Good general gateway to US Army WWW sites. URL: http://www.army.mil.

Army Space and Missile Defense Command (SMDC)
This is the home page for the U.S. Army's command-level organization for space-based communications, earth observation, and space warfare activities.

Army Topographic Engineering Center - Survey Engineering and Mapping Center
This site, http://www.tec.army.mil/index.html offers software and advanced modeling techniques for geospatial data collection and processing.

Army Weapons Systems Handbook
This is a searchable database, not a book.  It has compiled fact sheets on hundreds of U.S. Army weapons and intelligence-gathering systems, including earth observation satellites.

Backgrounds Data Center at the Naval Research Laboratory
The Backgrounds Data Center (BDC) is one of the Data Archive Centers for the Ballistic Missile Defense Organization (BMDO). The BDC was established to assist ballistic and theater missile defense specialists with information needed to evaluate Strategic Defense System feasibility, development, and implementation. The site has links to space science, earth science, meteorological, and remote sensing WWW pages.

Ballistic Missile Defense Organization
A DoD-wide program focused on missile defense strategy and tactics, including some R&D and intelligence analysis. It also has links to the Central Imagery Office (CIO). This site is located at http://www.acq.osd.mil/bmdo/bmdolink/html/.

Battlespace Environment Division  - USAF
Tracks space junk and ionosphere hazards to the USAF "warfighting systems."  BED specialized in clarifying and/or exploiting "background clutter" for high altitude intelligence-gathering or attacks with weapons of mass destruction.

Central Intelligence Agency
This is a basic CIA site intended mainly for public relations and recruiting, but it includes some links to unclassified CIA products such as the CIA World Fact Book. The site is located at http://www.odci.gov/ cia/index.html.

CIABASE -- Bibliography Concerning Intelligence Activities
CIABASE is a non-governmental service that provides data on the CIA and other intelligence agencies from information gleaned from 850+ sources such as congressional reports, newspapers, magazines, and more than 450 books. CIABASE, at http://www.webcom.com/%7epinknoiz/covert/ciabase.html, offers about 10MBs of annotated entries concerning intelligence community people, policies and events divided into 100+ categories.  Also available on CD-ROM for both IBM compatible and MacIntosh personal computers.

Coast Guard WWW gateway
Good general gateway to US Coast Guard WWW sites at http://www.uscg.mil/.

Cooperative Threat Reduction Program
A DoD experiment in partial information transparency. The site is located at http://www.defenselink.mil/pubs/ctr.  It is mainly aimed at providing information about U.S. efforts to eliminate nuclear weapons in Russia, Belarus, Kazakhstan and Ukraine.

Declassified Intelligence Satellite Imagery
About 800,000 declassified U.S. intelligence satellite images from the 1960s and early 1970s were released during 1995-1997. Images can be browsed for free at this site or purchased through the EROS Data Center. The URL for this site is http://edc.usgs.gov/Webglis/glisbin/search.pl?DISP.

Defense Meteorological Satellite Program (DMSP) "Nighttime Lights of the World" Data
Nighttime lights, fires, flares and similar information collected worldwide in near-infared band.  The program uses the same grid as the USGS Global AVHRR project, and reveals human settlements, energy use and related information.  See http://www.ngdc.noaa.gov/dmsp/dmsp.html

Defense Information Systems Agency -- DISA
Department of Defense at agency for developing and maintaining advanced data networks for both tactical and strategic applications. Located at http://www.disa.mil/.

Defense Intelligence Agency -- DIA
Not much content here as yet, but worth watching. Located at http://www.dia.mil.

Defense Intelligence Agency Missile and Space Intelligence Center
MSIC is DIA's focal point for monitoring the Missile Technology Control Regime agreements and related arms proliferation issues. Very little content is presently available at this site, which is located at http://msic.dia.mil.

Defense Link
DefenseLINK has emerged in recent years as a consolidated reference source on all unclassified aspects of the U.S. Military and a jumpstation to hundreds of U.S. Military URLs.  Operated by the Department of Defense at http://www.dtic.mil/defenselink, it is often the most accessible DOD entry point during periods of peak usage.

Defense Meteorological Satellite Program -- U.S. Air Force Home page
Satellite imagery at the Fleet Numerical Meteorological and Oceanographic Center is provided by the Defense Meteorological Satellite Program (DMSP). This imagery is derived from polar orbiting satellites and merged to produce a mosaic images of the entire world.  Desired options can be selected and images can be retrieved at http://www.laafb.af.mil/SMC/CI/.

Defense Meteorological Satellite Program -- NASA/JPL Home page
At present this is the most concise and useful of the DMSP pages.  It includes technical and administrative data, plus a specialized glossary and acronyms list.  Key ground receiving stations are located at Fairchild AFB, Washington (http://www.fairchild.af.mil), Thule, Greenland (Denmark), AF Remote Tracking Station, Hickam AFB, Hawaii (http://www.hqpacaf.af.mil or www.cioss.af.mil), New Hampshire Tracking Station, New Boston, NH.

Defense Meteorological Satellite Program - - NOAA Home Page
This site provides information about, and sample data from, the NOAA's part in the Defense Meteorological Satellite Program (DMSP). DMSP is a two satellite constellation of near-polar orbiting, sun-synchronous satellites monitoring meteorological, oceanographic and solar-terrestrial physics environments. This is located at http://www. ngdc.noaa.gov/dmsp/dmsp.html.

Department of Defense Manned Space Flight Support Office
This is the DoD level space policy and activities organization.  Department of Defense Manned Space Flight Support Office (DDMS), at Patrick Air Force Base, Florida, is the single point of contact to coordinate all DOD contingency support to the United State’s manned space flight programs.

Department of Defense, Master Environmental Library -- MEL
MEL is an all-DoD one-stop Modeling and Simulation environment shop. It permits users to search for environmental data by providing keywords, regions of interest, time and/or latitude and longitude information. Covers atmosphere, oceans, terrain and space. Located at http://mel.dmso.mil/.

Federation of American Scientists -- Space Policy Project
This non-governmental site specializes in hard-to-find information on U.S., international and  military space programs and high technology intelligence programs.  It includes a growing gallery of imagery of sites of intelligence interest worldwide. A unique resource located at http://www.fas.org/spp/military/program.

Fleet Numerical and Oceanography Center
Located in Monterey, California this is the U.S. Navy's primary processing center for DMSP weather satellite data.  URLs include and http://www.fnoc.navy.mil.

Fort Monmouth - C4I Electronic Warfare and Sensor Team
This is a key U.S. Army Earth Sensing development testing facility, encompassing GPS, ground station reception and integration of many forms of battlefield and theater-level intelligence.  Though primarily based in New Jersey, Ft. Monmouth maintains facilities at Vint Hill Garrison in Warrenton, Virginia, Ft. Huachuca, Arizona and at the Pentagon.  The web site, http://cecom5.monmouth.army.mil/intranet/ projbk98.nsf, includes an alphabetic index to unclassified activities.

Global Positioning System (GPS) Time Series
This technological 'ticker' at the heart of the GPS system (http://sideshow.jpl.nasa. gov/mbh/series.html).  The site is one of a series of military GPS-related URLs including the NAVSTAR GPS Joint Programs Office at Los Angeles AFB (http://ww.laafb.af.mil/cz/homepage/gpshome.html), Coast Guard Navigation Center (http://www.navcen.uscg.mil), Naval Observatory GPS web page (http://tycho.usno.
navy.mil/gps.html) and the Naval R&D  Center for GPS -  NRaD (http://bluefish.

The Official magazine of the USAF Space Command.

Intelligence Community Advanced Technology Demonstration Network
A joint ARPA, DISA and DIA project for developing very high speed, secure networks. The URL is http://www.atd. net/atdnet.html

Intelligence Community Gateway
Intended as a public relations Home page for the Office of the Director of Central Intelligence. The URL for the site is http://www.odci.gov/ic.

International GPS Service for Geodynamics
This site, http://IGSCB.JPL.NASA.GOV, is useful for researchers who use satellites in the US defense department's global positioning system (GPS) for studies in geodynamics. IGS archives and distributes GPS observation data concerning IGS tracking stations and GPS satellite tracking station clock information. The project maintains a network of about 50 globally distributed permanent tracking stations. It also has Data Centers, Analysis Centers and a Central Bureau for information distribution. The bureau maintains Hot Links with allied organizations in Europe, Canada and the US.

Johns Hopkins University, Applied Physics Laboratory -- Ocean Remote Sensing Group.
The Ocean Remote Sensing Group specializes in civilian and military applications of remote sensing technology in the marine environment. Http://fermi.jhuapl.edu also provides hot links to related sites.  The APL is also a major military contractor for all aspects of warheads, fusing and missiles as well as some aspects of earth observation satellite launch telemetry and command and control.
John Hopkins Road
Laurel, Maryland  20723-6099
tel:     +1 301 953-5711 or +1 410953-5711
URL:  http://www.jhuapl.edu

Joint Military Intelligence Program (JMIP)
In 1995 the outgoing CIA director John Deutch created the Joint Military Intelligence Program (JMIP), which is intended to consolidate budget oversight, military intelligence collection and analysis, as well as reconnaissance programs.  JMIP provides an umbrella for Defense Cryptological Program (DCP), Defense Imagery Program (DIP), Defense Mapping, Charting and Geodesy Program (DMCGP), Defense General Intelligence and Applications  Program (DGIAP), which consists of five sub-programs, each of which was formerly funded in the TIARA aggregation:

JMIP operates under the Assistant Secretary for Defense for C3I.
JSTARS - Joint Surveillance Target Attack
Headquartered at Robins AFB in Georgia, the JSTARS program is among the most ambitious current efforts to integrate intelligence from multiple sources -- particularly spy satellites -- for rapid use by regional or battlefield-level commanders.

Kuwait Data Archive
This is a prototype data integration project sponsored by the US Department of Energy, Defense Nuclear Agency, EPA, NOAA, etc. It includes land surface observation and aircraft data. Located at URL http://www.atd.ucar.edu/kuwait/kuda_title.html. Useful for studying the effects of Kuwaiti oil fires on the environment. For information contact: kudastaff@chinook.atd. ucar.edu or write to the following address:

      Kuwait Data Archive
      National Center for Atmospheric Research
      P.O. Box 3000
      Boulder, CO 80307, USA
      Tel: +1-303-497-1029
     Fax: +1-303-497-1092

Los Almos National Laboratory
PO box 1663
Los Almos, NM 87545

Lewis Technical Library Acronym and Abbreviation Server.
A search engine for acronyms located at http://www.ucc.ie/info/net/acronyms/index. It will also automatically display related acronyms.

Lockheed Palo Alto Research Laboratory (Skunk Works)
Officially a private enterprise, but exclusively engaged in military aerospace and reconnaissance work, most of it classified.  The lab is located at:

Organization 92-80, Building 205
3252 Hanover Street
Palo Alto, CA  94304-1187
Marine Corps WWW Gateway
Good general gateway to US Marine Corps WWW sites via http://www.hqmc.usmc.mil.

Military and Intelligence Gateways -- Private Sector Services

These are unofficial, private sector home pages that maintain hotlinks to dozens of military- and intelligence-related WWW sites. The 'milnet' and Federation of American Scientists pages are presently stronger on space and remote sensing resources than their competitors. 'PeaceNet,' as its name implies, has a strong collection of links to arms control and social justice groups.

Mojave Desert Ecosystem Program
DoD regards the Mojave Desert as strategically important for mission readiness. The Mojave Desert Ecosystem Program (MDEP) was initiated to test fusion of data layers in an unusually sophisticated ecosystem-wide Geographic Information System (GIS). The site, http://mojave.army.mil, has clickable icons to geospatial data, Mojave server sites and a bibliography.

Missile Defense and Space Technology Center (SSDC Program)
Located at Maxwell AFB, this is the Army's program office for missile defense.  The web site is collocated with that of the Army Space and Strategic Services Command.  (http://www.ssdc.army.mil). For the missile defense and space technology center see also:
Box 1500
Alabama 35807-3801 or
106 Wynn Drive
Alabama 35805-1990

National Imagery and Mapping Agency (NIMA)
Provides some unclassified information about mapping, topography, imagery, imagery intelligence and geospatial data. The NIMA Geodesy and Geophysics department home page contains information about satellites and geophysics.  Http://

4600 Sangamore Road
Bethesda, MD 20816-5003
tel:       +1 (301) 227-3089
email:  nima_news@nima.mil

NIMA Digital Chart of the World
This is also known as the Vector Smart Map (Vmap) Level 0.  The digital map provides 1:1,000,000 scale vector information worldwide with thematic layers for road and rail networks, river systems, utilities (electric and gas pipelines), international boundaries, etc.  Elevation data is at 1000 foot intervals with some 500 and 250 supplements.  Available on four CD-ROMs that traditionally have retailed for about $200 USD from USGS Open FIle Section, Box 25286, Denver, CO  80255.

NIMA Digital Terrain Elevation Data Level 0 (DTED0)
Digital topographic data compiled at approximately 100 meter post spacing (2 arc seconds).  DTED® Level 0 elevation post spacing is 30 arc second (nominally one kilometer). DTED0 data outside the United States is classified; 3 arc second data is nevertheless widely available for the U.S. and most industrialized nations from a variety of legitimate sources.  DTED Level 1 is restricted to U.S. Department of Defense and military contractors; but appeals for civilian access can be made to:
NIA HQ Releases Officer
Attn:  ACT, MSA-13
8613 Lee Highway
Fairfax, Virginia, 22031
For background information see: http://www.nima.mil/publications/guides/dtf/dted1.html.

NIMA's GEOnet Names Server
This site in by far the best free utility for identifying place names, latitude and longitude, geographical features and similar information for locations outside the United States.

National Data Center, U.S. -- Nuclear Test Ban Monitoring
The US National Data Center provides monitoring and technical support for a Comprehensive Nuclear Test Ban Treaty. It serves as a gateway between the US and the International Data Center for the exchange of geophysical data, primarily seismic data, which are recorded by a global network of stations. Established at the Air Force Technical Applications Center in Florida, the NDC's primary function is to support US treaty monitoring and verification capabilities. The NDC also provides universities and scientific organizations with readily accessible high quality data with which to conduct basic and applied research. The site is located at URL http://www.tt.aftac.gov/overview.html.

National Reconnaissance Office (NRO)
The NRO designs, builds and operates U.S. classified reconnaissance satellites.  A DoD agency, the NRO is officially staffed by DoD and CIA personnel. It is funded through the National Reconnaissance Program, part of the National Foreign Intelligence Program, but as a practical matter is heavily dependent on private sector defense contractors.  The NRO maintains a reading room for declassified materials and imagery at Chantilly, VA, Tel: 703-808-5576.  Appointments are necessary.

NRO's occasional press releases are available at http://www/nro.odci.gov/pressreleases/
prs_rel#.html, with the release number substituted for the # symbol (e.g. /prs_rel14.html deals with the release of declassified imagery.

National Security Agency
Provides sketchy information about the agency and its mission, the National Cryptographic Museum and related public aspects of NSA via http://www.nsa.gov:8080.

Navy WWW Gateway
Good general gateway to US Navy sites. Located at http://www.navy.mil.

Naval Meteorology and Oceanography Command
This site provides links to scores of naval weather, mapping and earth observation sites.
Stennis Space Center
Bay St. Louis, MS 39529-5002
tel:  +1 601-688-4726

Naval Postgraduate School - Monterey, CA
The Navy's specialized postgraduate program maintains sophisticated web pages on many topics pertaining to earth sensing, including the Scientific Visualization Lab (http://www.nps.navy.mil/VisLab/home.html), Space Systems Academic Group (http://www.sp.nps.navy.mil) and the Joint C4I Academic Group (http://www.stl.nps.navy.mil/c4i).

Naval Center for Space Technology
Military space science division of the Naval Research lab in Washington, DC.

Navy Space and Naval Warfare Systems Command (SPAWAR)
This is the home page for the U.S. Navy's command-level organization for space-based communications, earth observation and space warfare activities.

Nevada Test Site
This site contains the Nevada Test Site, its assets, resources, technologies and historical information.  It also contains a photo library.

Office of Naval Intelligence
This ostensibly civilian site opens to home pages maintained by the Office of Naval Intelligence and the National Maritime Intelligence Center. The site is reachable via http://www.fas.org/irp/agency/oni/org.htm.

Ordnance and Explosives Mandatory Center of Expertise and Design
The center is focused on risks from unexploded ordnance, land mine clean-up, and destruction of captured weapons or rediscovered chemical weapons.  It includes active support for research into LIDAR ground sensing and earth penetrating detection technologies.

Phillips Research Site - USAF
The lab announces its mission as "Revolutionary Space Capabilities for the Warfighter."  Its URL is http://http://www.vs.afrl.af.mil/.
Kirtland AFB
Albuquerque, NM  87117-5000
tel:       +1 505 846-0011
email:  pa@commgate.kirtland.af.mil

Planet Earth Home Page
This is the U.S. Navy's principal public page for marine and earth sciences, meteorology and related fields that involve satellite observation of the earth.

Sandia National Laboratory
PO Box 5800
Albuquerque, New Mexico 87158

This site focuses on the National Imagery Transmission Format Standards program at TASC. A major NIMA, NRO and Central Imagery Office contractors.

U.S. Space Command (Spacecom)
This is the home page for the United State's inter-service command level organization for space warfare strategy, tactics and day-to-day interservice coordination.  This site is collocated with the U.S. Air Force Space Command - AFSPC (www.spacecom.af.mil/
HQAFSpc/index.htm), the Air Force's own command-level organization for space warfare activities, including earth observation and counter-observation strategies.

9. National Aeronautics and Space Administration

NASA Home page
This address, http://www.nasa.gov, provides a link to web sites at NASA Centers across the country. Frequently, accessing NASA Centers is easier through a direct link from this Home page.

Ames Research Center

Aircraft Data Facility
MS 240-6

Medium Altitude Missions Branch
MS 211-12

Arequipa Tracking Station
Casilla Nr. 2095
tel:  +51 54 448 244

NASA, NOAA and the U.S. Geological Survey maintain relatively powerful and easy to use earth data indexing and distribution centers, which are known as Distributed Active Archive Centers (DAACs). Nine sites are now operating that focus on land features and mapping, snow and ice, chemistry of the atmosphere (including pollution), and related issues. The DAACs are accessible via http://www-eosdis.ornl.gov/daacpages/otherdaacs.html.See imagery index section for details.

Earth Observing System -- EOS
This site offers on-line access to Earth Observing System's (EOS) Project Science Center.

NASA Global Fire Monitoring
NASA and NOAA Missions for Monitoring Global Fires.  Different satellites provide observation and measurement capabilities for monitoring different fire characteristics.

Global Change Master Directory -- GCMD
GCMD is a free, on-line directory offering relatively comprehensive information about earth science, environmental, climate, and global change data holdings on the net. It is accessible via http://gcmd.gsfc.nasa.gov.

Goddard Institute for Space Studies
This address, http://www.giss.nasa.gov/ has a list of the best and most frequently accessed WXP weather images. It links to Purdue University and Michigan State University, each with many available weather images. This Home page is often accessed more easily via the main NASA Home page.

Goddard Space Flight Center AVHRR Imagery
One kilometer resolution, worldwide imagery with special usefulness for studying vegetation, forest fires, natural disasters and large-scale pollution.

GSFC Land Imagery Sites
Several friends have recommended http://modarch.gsfc.nasa.gov/, then click on "related sites", and http://ltpwww.gsfc.nasa.gov/ltp/ltp_related, then click on "related sites" as useful NASA sources for land imagery.

"Interesting Sites" in Earth Observation Services compiled by Dennis Chester
Dennis Chester of GSFC compiles and posts an informal yet frequently useful list of '"interesting services" related to earth observation and meteorology.

J-Pass Real-Time Satellite Tracking from NASA
J-Pass is an easy to use NASA web site that permits real-time tracking of more than five hundred satellites from NASA, NOAA, U.S. Department of Defense agencies, Russia, Israel, Japan, China and other countries. The latest version of J-Pass can handle ten simultaneous real-time tracks. Observed satellites include those for communication, weather, earth sensing, and other missions. The URL is http://liftoff.msfc.nasa.gov/realtime/JPass.

Jet Propulsion Laboratory
Operated by the Jet Propulsion Laboratory and NASA, this site, http://www.jpl.nasa.gov, includes numerous free software utilities for satellite viewing, including an orbital tracking program.

JPL Imaging Radar Home Page
The NASA/JPL Imaging Radar Home Page includes information on imaging radar, data products, educational materials, and software. A clickable map showing low-resolution images and links to places to order imaging radar data from NASA and non-NASA missions is featured. Images can also be accessed from http://southport.jpl.nasa.gov/education.html, a site linked to the home page which features a picture gallery and screening room. The main site is located at http://southport.jpl.nasa.gov.

Landsat Program
The Landsat Program is the longest running enterprise for acquisition of imagery of the earth from space. The instruments on the Landsat satellites have recorded millions of images, which are archived in the United States and at Landsat receiving stations around the world. Landsat data have been used extensively in agriculture and geology, global change science, education and national security applications. This site, http://geo.arc.nasa. gov/esd/esdstaff/landsat/landsat.html provides an overview of the history and development of the program and links to the USGS EROS Data Center archive as well as to the US Global Change Research Program.

Lewis Technical Library Acronym and Abbreviation Server.
A search engine for acronyms located at http://www.ucc.ie/info/net/acronyms/index. It will also automatically display related acronyms.

NASA's Commercial Remote Sensing Program
This site promotes commercial remote sensing initiatives, market applications for remote sensing and GIS technologies, and provides publications/articles. The URL for the site is http://crsp.ssc.nasa.gov.

NASA Remote Sensing Public Access Center
The "Observatorium" is NASA's public access WWW Home page for earth and space data. This site includes The Exhibit Hall, which answers many K-12 level questions on the basics of remote sensing and gives examples from fields such as archeology and geology. Sample images are displayed on-line. Also at this site is Technology Park, which gives somewhat more in-depth information on earth and space science, remote sensing, and information technology. This information is located at http://www.observe.ivv.nasa.gov/nasa/core.shtml.html.

NASA Press Releases Online
To subscribe send an email to majordomo@venus.hq.nasa.gov.  In the body of the message, type the following:  subscribe press-release your name.

NASA/NOAA AVHRR (Advanced Very High Resolution Reflectometer) Pathfinder Program
This site offers information on the NASA/NOAA Pathfinder Program and the various Pathfinder projects. The site is located at http://nsidc.org/NASA/POLAR_PATHFINDERS/.  See also http://mohawk.gsfc.nasa.gov/avhrr.

NASA-NOAA Near Real Time Weather Data
This FTP site is accessible from 3 points of entry:

Eastern America, Europe
Australia, New Zealand, Asia
Visible light and IR hourly GMS-5 images in gif format (images may be enhanced), and in hdf format (raw, intended for research), can be found in the directory "pub/Weather/GMS-4". Resolution is 5 km, so images are 2-3 MB in size. The "pub/Weather/GOES-7" directory contains half-hourly visible light and IR GOES-7 images in gif and hdf formats, and the "pub/Weather/GOES-8" now contains GOES-8 images. Also available are 48-hour MPEGs.

NASA's Recommended Images
NASA's public information officer at GSFC recommends three sites as starting points for the study of NASA's massive (and still widely dispersed) collections of earth observation imagery:
Each is a "gallery", so to speak, rather than an image index as such, yet each contains many public domain examples of NASA imagery, some with interpretive descriptions.  Good sites for baseline data and educational examples.

NASA Spacelink Educational Site
This site, designed for teachers and students, provides files on everything from upcoming space shuttle flights to UFOs. Congressional testimony and speeches by NASA officials, NASA news releases, and status reports about current NASA missions are also found here. The URL for the site is http://spacelink.msfc.nasa.gov.

NASA's Space Mission Acronym List and Hyperlink Guide
This site is located at http://ranier.oact.hq.nasa.gov/Sensors_page/Missionlinks.html.

NASA Vegetation Canopy Lidar
The principal goal of the VCL mission is penetrating and charting forest canopies to determine ground-level geology, human habitation and events as well as  three-dimensional structure of the Earth. The site is located at http://essp.gsfc.nasa.gov/vcl/.

Remote Sensing Thrust Office at NASA Langley Research Center
The Remote Sensing thrust at Langley Research Center specializes in lasers, detectors, miniature sensors and deployable telescopes. This site, http://aesd.larc.nasa.gov/C/CF/CF.html, also lists current projects and provides hot links to related home pages.

Satellite Altimetry URLs
Key altimetry sources compiled by IMAGRS-L readers include:

Total Ozone Mapping Spectrometer Home page --TOMS
The TOMS home page contains general information on ozone, ozone satellite retrieval, and information about Earth Prove/TOMS, Meteor-3, and Nimbus-7. Ozone movies and graphs are also available via http://jwocky.gsfc.nasa.gov.

Visualization of Remote Sensing Data
Visualization of Remote Sensing Data (VRSD) is a showcase for imagery created by the Laboratory for Atmospheres at NASA Goddard Space Flight Center and by other groups.

10. National Oceanographic and Atmospheric Administration

The NOAA Home Page
The NOAA Home Page is the main web entry point for information on NOAA programs and data. NOAA data sets, satellite images, weather maps, NOAA publications, software, and other products can be browsed or ordered here. The NOAA Home Page is also accessible using Lynx. The site is located at http://www.noaa.gov.

National Geodetic Survey
This site includes up-to-date National Spatial Reference System (NSRS) information.

National Geophysical Data Center
The National Geophysical Data Center (NGDC) manages environmental data in such fields as solar-terrestrial physics and solid earth geophysics. Each field operates a World Data Center (WDCA) discipline center. The site is located at URL http://www.ngdc.noaa.gov.

NOAA National Geophysical Data Center
325 Broadway
Boulder, CO 80303
303 497 6761
NOAA Data Set Catalog
This site, http://www.esdim.noaa.gov/NOAA-Catalog/NOAA-Catalog.html, provides searchable directories of environmental, oceanographic, and meteorological information.

NOAA Defense Meteorological Satellite Program
Information about, and sample data from NOAA's part in the inter-agency Defense Meteorological Satellite Program (DMSP). DMSP is a two satellite constellation of near-polar orbiting, sun-synchronous satellites monitoring meteorological, oceanographic and solar-terrestrial physics environments. This site is available via URL http://www.ngdc.noaa.gov/dmsp/dmsp.html or via ftp at ftp:ftp.ngdc.noaa.gov/DMSP.

NOAA Global Land One-km Base Elevation (GLOBE) Project
NOAA's gridded 1 km activity DEMs are noteworthy for their quality control and uniformity of data presentation.  Located at http://www.ngdc.noaa.gov/seg/topo or send a blank email message to emglobe@ngdc.noaa.govto receive electronic news releases.  The GLOBE site includes links to many U.S. and international DEM sources.

National Environmental Satellite and Data Information Service
Federal Office Building 4, Room 2069
Suitland, MD 20233
tel:  301-763-7190
fax: 301-763-4011

NOAA Geoscience Internet Locator
Good jumpstation for scores of geoscience sites.

NOAA Satellite Active Archive
NOAA's Satellite Active Archive is a digital library of near-real-time and historical satellite data from NOAA's polar-orbiting weather and environmental satellites. Currently, AVHRR and TOVS data is available. The site is available at http://www.saa.noaa.gov or via telnet at telnet:saa.noaa.gov.

NOAA/NASA AVHRR Pathfinder Home page
This sits, http://podaac-www.jpl.nasa.gov/sst, includes data lists of currently available AVHRR Pathfinder  products, images dating from 1987-1990 as well as project descriptions.

Hazardous Materials Response and Assessment Division
7600 Sand Point Way NE, BIN C15700
Seattle, WA  98115-0070
tel:       1-206-526-6323
fax:      1-206-526-6329
email:  galt@hazmat.noaa.gov

NOAA National Weather Service
Ron Gird, Satellite Program Leader
315 East West Highway, OM22
Silver Spring, MD  20910
tel:      1-301-713-1867 x110
fax:     1-301-713-1520
email: ron.gird@noaa.gov

NOAA/NWS - National Center for Environmental Prediction
Climate Prediction Center
c/o U.S. Department of Agriculture
14 & Independence Avenue, SW
Room 5844
Washington, DC  20250-0001
tel:       1-202-720-7919
fax:      1-202-720-1455

NOAA Office of the Federal Coordinator for Meteorology (OFCM)
8455 Colesville Road, Suite 1500
Silver Spring, MD  20910
tel:       1-301-427-2002
fax:      1-301-427-2007
email:  robert.dumont@noaa.gov

NOAA Office of Global Programs
1100 Wayne Street, Suite 1210
Silver Spring, MD  20910
tel:        1-301-427-2089 x38
fax:       1-301-427-2082
email:  stewart@ogp.noaa.gov

NOAA Office of Security
Mary Pittman, Emergency Specialist
1305 East West Highway, Room 5255
Silver Spring, MD  20190
tel:       1-301-713-0954
fax:      1-301-713-0953
email:  Mary.L.Pittman@noaa.gov

National Environmental Satellite and Data Information Service
Federal Office Building 4, Room 2069
Suitland, MD 20233
tel:  301-763-7190
fax: 301-763-4011

NOAA  NESDIS  - National Climate Data Center
151 Patton Avenue, Room 120
Ashville, NC  28701
tel:       1-828-271-4478
fax:      1-828-271-4328
email:  abasist@ncdc.noaa.gov

NOAA  NESDIS - National Geophysical Data Center
325 Braodway Street, RL-3, Room 159
Boulder, CO  80303
tel:       1-303-497-6121
fax:      1-303-497-6513
email:  cde@ngdc.noaa.gov

NOAA  NESDIS - National Oceanographic Data Center
Laboratory for Satellite Altimitry
1315 East West Highway
Silver Spring, MD  20910
tel:      1-301-713-2853
fax:     1-301-713-4598
email: rcheney@nodc.noaa.gov

NOAA  NESDIS - National Oceanographic Data Center
Office of International and Interagency Affairs
1315 East West Highway, Room 3620
Silver Spring, MD  20910

Satellite Altimetry URLs
Key altimetry sources compiled by IMAGRS-L readers include:

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