products: early warning and timely crop/climate alerts, crop yield estimates on a monthly basis, global weather briefings which relate climate impact on socioeconomic systems, and risk assessments of climatological phenomena on national resources.

(d) Three different weekly assessment reports are prepared. The first, prepared for Congress, consists of a 1 or 2 page summary with accompanying map of the principal global droughts, floods, and other weather anomalies. The second, prepared for LACIE, is 30 to 60 pages and analyzes and describes the effects of the past week's weather on the major wheat producing areas of the world outside the U.S. (i.e., Argentina, Australia, Brazil, Canada, China, India, and U.S.S.R.). The third, prepared for the State Department, is 15 to 20 pages and analyzes and describes crop weather over the seventeen country band of sub-Saharan Africa from Mauritania and Senegal in the west to Ethiopia, Somalia, and the Sudan in the east.

(e) Queries should be addressed to:

Center for Climatic and Environmental Assessment, 600 East Cherry Street, Columbia, MO 65201, Tel. 314-442-2271, Ext. 3261.

§ 950.9 Satellite Data Services Branch (SDSB).

The Satellite Data Services Branch of the EDS National Climatic Center provides environmental and earth resources satellite data to other users once the original collection purposes (i.e., weather forecasting) have been satisfied. The branch also provides photographs collected during NASA's SKYLAB missions. Available from SDSB are:

(a) Satellite data available from SDSB include: (1) Data from the TIROS (Television InfraRed Observational Satellite) series of experimental spacecraft; much of the imagery gath

ered by spacecraft of the NASA experimental NIMBUS series; full-earth disc photographs from NASA's Applications Technology Satellites (ATS) I and III geostationary research spacecraft; tens of thousands of images from the original ESSA and Current NOAA series of Improved TIROS Operational Satellites; and both fulldisc and sectorized images from the Synchronous Meteorological Satellites (SMS) 1 and 2, the current operational geostationary spacecraft. In addition to visible light imagery infrared data are available from the NIMBUS, NOAA, and SMS satellites. Each day, SDSB receives about 239 negatives from the polar-orbiting NOAA spacecraft, more than 235 SMS-1 and 2 negatives, and several special negatives and movie film loops.

(2) Multispectral imagery derived from data collected by NASA's Earth Resources Technology Satellites (ERTS), currently LANDSAT-1 and 2.

(3) Photographs (both color and black-and-white) taken during the three SKYLAB missions (May-June, 1973, July-September, 1973, and November 1973-February 1974). Queries should be addressed to:

Satellite Data Services Branch, World Weather Building, Room 606, Washington, D.C. 20233, Tel: (301) 763-8111.

§ 950.10 Comprehensive referral service.

The Environmental Data Index (ENDEX) provides rapid, automated referred to mulit-discipline environmental data files of NOAA, other Federal agencies, state and local governments, universities, research institutes, and private industry. A complementary, literature-based system, Oceanic and Atmospheric Scientific Information System (OASIS) provides a parallel subject-author-abstract referral service. A telephone call to any EDS data or information center or NOAA library will allow a user access to this service.