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8.3.1.3 LAC and HRPT Data Sets

This section describes the characteristics and format of Local Area Coverage (LAC) and High Resolution Picture Transmission (HRPT) data sets for both NOAA KLM (Version 2) and NOAA-N (Version 3) satellites. Version 2 formats (v2) were used on all NOAA KLM data until April 28, 2005. After this date, the Version 3 format (v3), also known as the NOAA-N format, was implemented for all operational POES spacecraft. There is no plan at this time to reprocess archived data into the new format. On January 25, 2006, Version 4 (v4) was implemented to reflect the start of CLAVR-x (Cl ouds from AV HR R E x tended cloud mask) processing which began on that date. On November 14, 2006, Version 5 (v5) was implemented for the LAC/HRPT only. The GAC version number remains at 4.

• Section 8.3.1.3.1 Data Characteristics
• Section 8.3.1.3.2 Header Records
  • Section 8.3.1.3.2.1 NOAA KLM Format (Version 2, pre-April 28, 2005)
  • Section 8.3.1.3.2.2 NOAA-N Format (Version 5, post-November 14, 2006, all spacecraft)
• Section 8.3.1.3.3 Data Records
  • Section 8.3.1.3.3.1 NOAA KLM Format (Version 2, pre-April 28, 2005)
  • Section 8.3.1.3.3.2 NOAA-N Format (Version 5, post-November 14, 2006, all spacecraft)

Amended March 29, 2004

Amended January 4, 2005

Amended April 12, 2005

Amended May 4, 2005

Amended December 7, 2006

 

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