Errors in high‐latitude SSTs and other geophysical products linked to NOAA‐14 AVHRR channel 4 problems
- 3 June 2003
- journal article
- Published by American Geophysical Union (AGU) in Geophysical Research Letters
- Vol. 30 (11)
- https://doi.org/10.1029/2003gl017178
Abstract
Errors in brightness temperatures for channel 4 in the Advanced Very High Resolution Radiometer (AVHRR) onboard the NOAA‐14 spacecraft are examined. The errors involve a low frequency of occurrence for some values, and a corresponding enhancement of frequency for others. Errors appear to be related to the conversion of analog to digital values. Unfortunately, it is not possible to identify and separate erroneous values. The most apparent errors in geophysical products derived from AVHRR's channel 4 occur at low brightness temperatures, therefore sea surface temperatures in high latitudes (below about 6°C) and cloud‐related products must be used with caution, as they may have systematic errors as large as 0.5°C.This publication has 11 references indexed in Scilit:
- Remote sensing of Southern Ocean sea surface temperature: implications for marine biophysical modelsRemote Sensing of Environment, 2003
- An Improved In Situ and Satellite SST Analysis for ClimateJournal of Climate, 2002
- An automated cloud detection method for daily NOAA-14 AVHRR data for Texas, USAInternational Journal of Remote Sensing, 2002
- Analysis of polar stratospheric cloud measurements from AVHRRJournal of Geophysical Research: Atmospheres, 2001
- Overview of the NOAA/NASA advanced very high resolution radiometer Pathfinder algorithm for sea surface temperature and associated matchup databaseJournal of Geophysical Research: Oceans, 2001
- Improved cloud detection in AVHRR daytime and night-time scenes over the oceanInternational Journal of Remote Sensing, 2001
- A Comparison of Satellite and In Situ–Based Sea Surface Temperature ClimatologiesJournal of Climate, 1999
- High-latitude surface temperature estimates from thermal satellite dataRemote Sensing of Environment, 1997
- Satellite‐derived sea surface temperatures: Current statusJournal of Geophysical Research: Oceans, 1995
- Impact of Mount Pinatubo Aerosols on Satellite-derived Sea Surface TemperaturesJournal of Climate, 1993