Global and Regional Comparative Performance of Linear and Nonlinear Satellite Multichannel Sea Surface Temperature Algorithms
Abstract
This report summarizes investigations conducted at the Naval Research Laboratory on the accuracy of advanced very high resolution radiometer (AVHRR) satellite sea surface temperature (SST) retrieval techniques. Investigations focused on linear and nonlinear AVHRR atmospheric correction algorithms and their comparative performance relative to global drifting buoy in situ SST observations. Satellite retrievals were matched to drifting buoy SSTs within 2 hours and 10 km from January to December 1990. Emphasis was placed on the bias and root-mean-square difference (rmsd) statistical accuracy of each algorithm for various global regions, atmospheric conditions, and seasonal time periods. Results demonstrate that the nonlinear sea surface temperature (NLSST) algorithm provides consistently better bias and rmsd accuracy statistics relative to the other algorithms tested. Given these results, it is recommended that global satellite SST retrieval processing should utilize the NLSST algorithm for operational retrieval generation. Recommendations are also provided for future algorithm improvement investigations.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1993
- Accession Number
- ADA270475
Entities
People
- Douglas A. May
Organizations
- United States Naval Research Laboratory