An Assessment of HIRS Surface Air Temperature with USCRN DataReport as inadecuate

An Assessment of HIRS Surface Air Temperature with USCRN Data - Download this document for free, or read online. Document in PDF available to download.


NOAA’s Cooperative Institute for Climate and Satellites, North Carolina CICS-NC, NC State University, Asheville, NC 28801, USA


NOAA’s National Centers for Environmental Information NCEI, Asheville, NC 28801, USA


Author to whom correspondence should be addressed.

Academic Editors: Xuepeng Zhao, Wenze Yang, Viju John, Hui Lu, Ken Knapp, Zhaoliang Li and Prasad S. Thenkabail

Abstract The surface air temperature retrievals from the High Resolution Infrared Radiation Sounder HIRS are evaluated by using observations from the U.S. Climate Reference Network USCRN for the period of 2006 to 2013. One year of the USCRN data is also used as ground truth in calibrating retrieval biases. The final retrieval results show that mean biases of HIRS retrievals from comparisons to all surface stations for each year are mostly in the range of ±0.2 °C, and the root mean square difference RMSD values are 3.2–3.5 °C. Results for biases of individual stations are mostly within ±2 °C. In average, RMSDs are smaller over the eastern U.S. than over the western U.S., smaller at nighttime than at daytime, and smaller at lower elevations. The comparison patterns are consistent from year to year and for different satellites, showing the potential of HIRS data for long-term studies. View Full-Text

Keywords: HIRS; USCRN; surface air temperature HIRS; USCRN; surface air temperature

Author: Steve T. Stegall 1,* and Lei Shi 2



Related documents