University of Miami TIROS-N/NOAA AVHRR Level 1b

This direct transmission data is called HRPT for High Resolution Picture Transmission. The second full resolution mode is LAC or Local Area Coverage. LAC data is recorded and stored on-board the satellite for later transmission.

LAC data coverage is scheduled by NOAA/NESDIS and may be recorded over any portion of the world. The primary receiving stations for HRPT data are Wallops Island, Virginia and Gilmore Creek, Alaska. The data collected by these two stations is permanently stored on magnetic tape at the NESDIS data facility in Suitland, Maryland.

Based on these two stations HRPT areal coverage is of the western North Atlantic west from about 50W, and north of 18N, the Gulf of Mexico, north of 18N and the Gulf of Alaska in the North Pacific. In July of 1987 HRPT collected at the NESDIS facility in Redwood City, California became available. This archive will contain AVHRR passes of the west coast of North America from 1984 to the present in standard Level 1b format.

The Naval Ocean Research and Development Activity facility at NSTL, Mississippi has a non-permanent 90 day rotating HRPT archive of data collected over the Gulf of Mexico. Level 1b NOAA TIROS-N Data Archive at the University of Miami Time Period: TirosN 11/03/1978 - 01/19/1980 NOAA-6 09/01/1979 - 02/19/1982 NOAA-7 07/11/1981 - 10/29/1984 NOAA-8 12/22/1983 - 09/20/1985 NOAA-9 01/19/1985 - 12/06/1987 File Size: TirosN Level 1b 730 passes;No more planned NOAA-6 Level 1b 539 passes;No more planned NOAA-7 Level 1b 289 passes;No more planned NOAA-8 Level 1b 12 passes;No more planned NOAA-9 Level 1b 135 passes;No more planned