Clouds from AVHRR


The Clouds from AVHRR Extended (CLAVR-x) is NOAA's operational cloud processing system for the AVHRR on the NOAA - POES and EUMETSAT-METOP series of satellites. The AVHRR Pathfinder Atmospheres (PATMOS-x) is a climate processing system (1981-2007) based on CLAVR-x.
While more advanced imagers are already flying, AVHRR remains an important source of remote sensing data. In addition, only the AVHRR offers a data-record that spans over twenty five years making it a critical data-set for decadal climate studies.

Contact information

CIMSS Program Assistant: Maria Vasys
University of Wisconsin-Madison
1225 W. Dayton St.
Madison, WI 53706
Phone: 608-263-7435 (CIMSS Office)
Fax: 608-262-5974 (CIMSS Office)

Principal Investigator

Andrew Heidinger

Funding contributors and acknowledgements

This project is funded through

  • The NOAA/NESDIS Office of System Development's Polar Program led by Tom Schott
  • The NOAA/NESDIS Office of System Developments Ground System Program led by Richard Reynolds and Paul Chang
  • The NOAA Integrated Program Office Internal Government Studies
  • The NOAA Data Stewardship Project
  • The NOAA GIMPAP project


December 8, 2008