Scanning High-resolution Interferometer Sounder


The Scanning High-resolution Interferometer Sounder (S-HIS), designed and built at SSEC, measures emitted thermal radiation at high spectral resolution between 3.3 and 18 microns. The S-HIS builds on the 15+ years of SSEC experience in interferometry. The radiance measurements are used to obtain temperature and water vapor profiles of the Earth's atmosphere. S-HIS produces sounding data (vertical profiles of temperature and other parameters) with 2 kilometer resolution (at nadir) across a 40 kilometer ground swath from a nominal altitude of 20 kilometers onboard a NASA ER-2 aircraft or 20 kilometer ground swath from a nominal altitude of 10 kilometers aboard the NASA DC-8 aircraft.

SSEC scientists develop and test computer algorithms used to convert S-HIS radiance measurements into temperature and water vapor profiles, sea surface skin temperature, land surface temperature and emissivity, cloud top temperature and emissivity, and trace gas total column amounts. Data gathered in field experiments advance our understanding of the Earth's atmosphere and help to develop future weather satellite sounders by supporting NASA Earth Observing System and NOAA Integrated Program Office/National Polar-orbiting Operational Environmental Satellite System calibration and validation activities.

Contact information

Point of Contact: Robert O. Knuteson
University of Wisconsin-Madison
1225 W. Dayton St.
Madison, WI 53706
Phone: (608) 263-7974
Fax: (608) 262-5974
Email contact form

Principal Investigator

Hank Revercomb
email contact form

Funding contributors and acknowledgements

The S-HIS instrument was developed jointly with Bomem, Inc.


Support for S-HIS development has been provided by:
December 3, 2014