AVHRR DATA CONVERSION

[Bill Brown]

 LAC/HRPT AVHRR data is described on the usgs web site at:
http://sun1.cr.usgs.gov/glis/hyper/guide/avhrr

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The record structure of LAC/HRPT Level 1b data sets for 
each file follows the pattern: 

Record 1  TBM (Terabit memory)Header record (122 bytes)
Record 2  Data Set Header record (7400 bytes)
Record 3  Dummy (7400 bytes)
Records 4-n  Data records (7400 bytes)
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AVHRR seems to come in a variety of flavors - the
Pathfinder AVHRR Daily Data Set is in HDF format & is
relatively easy to import to GRASS using r.in.hdf, 
available on moon.cecer.army.mil in /grass/incoming.

- Bill B.