World Data Center A for
                             Remotely Sensed Land Data


Address:                     WDC-A for Remotely Sensed Land Data
                             U.S. Geological Survey
                             EROS Data Center
                             Sioux Falls, South Dakota  57198,  USA

Telephone:                   (605) 594-6151
Telex:                       910-668-0310
Telefax:                     (605) 594-6589
Network Address:             eros@erosa.cr.usgs.gov (internet)
                             erosa::eros (nsnet)
                             [EROS.DATA.CENTER/OMNET]
Director:                    Dr. William C. Draeger

Maintained by: U.S. Geological Survey (USGS). The WDC-A for RSLD is 
collocated with the EROS Data Center.

Summary of Data Held: Digital and photographic images of land areas, 
with extensive "metadata:" over 2 million images acquired from 
satellites and over 8 million aerial photographs. Examples are:

     Landsat Multispectral Scanner (MSS) Data:  MSS data acquired by 
     the United States between January 1972 and November 1992, 
     providing coverage of areas throughout the world, but predominantly 
     of North America; information on foreign Landsat holdings.

     Advanced Very High Resolution Radiometer (AVHRR) Data: enhanced 
     and derivative AVHRR data (standard Level 1B products are 
     distributed by the National Oceanic and Atmospheric Administration), 
     providing coverage of areas throughout the world, from 1986 to the 
     present.

     Skylab/Gemini/Apollo Photography: over 60,000 frames of black-and-
     white, color, and color infrared photographs providing intermittent 
     coverage of the Earth. These photographs are from the Skylab Earth 
     Resource Experiment Package (EREP), during three Skylab missions 
     between May 22, 1973, and February 8, 1974.

     Space Shuttle Earth Observations Hand-Held Photography: 80,600 
     frames of Earth-observing, hand-held photographs by shuttle 
     astronauts in natural color, color infrared, and black-and-white. 
     The photography provides site-specific coverage throughout the 
     world, from April 1981 through present missions.

     Aircraft Photography of Antarctia: 300,000 aerial photographs 
     of Antarctica, mostly in black-and-white but some in color.  
     These photographs were produced by the United States and other 
     member nations of the Scientific Committee on Antarctic Research 
     and acquired between 1946 and the present.

User Services: All requests for information on data available through 
the WDC-A for RSLD, the establishment of customer accounts, or orders 
for products should be directed to "Customer Services" at the address 
noted above.

The Global Land Information System (GLIS), an interactive on-line 
database describing and listing certain data available through the 
WDC-A, can be accessed through the Internet at the following network address:

     telnet:  glis@glis.cr.usgs.gov     or     152.61.192.54

For more information about GLIS, or to request the IBM-compatible PC 
software that provides a graphical interface to GLIS, contact the GLIS 
User Assistance staff at:

     Phone: 800-252-4547
     Email: glis@glis.cr.usgs.gov (internet)
            glis::glis (nsnet)

Available facilities include advanced data analysis laboratories, 
production digital and photographic data processing systems, and 
on-line computerized access to data directory, catalog, and inventory 
information about Center holdings as well as the land data holdings 
of other facilities.