Departamento de Ciencias Físicas, Universidad de La Frontera, P.O. Box 54-D, Temuco, Chile
Universidad de Chile Chile
Departamento de Ciencias Ambientales y Recursos Naturales Renovables, Universidad de Chile, P.O. Box 1004, Santiago, Chile, P.O. Box 1004, Santiago, Chile
Universitat de València Spain
Image Processing Laboratory, Universitat de València, P.O. Box 22085, Valencia, España
Universidad de La Frontera Chile
Departamento de Ingeniería Eléctrica, Universidad de La Frontera, P.O. Box 54-D, Temuco, Chile
The present article applies and compares three split-window (SW) algorithms, which allowed the estimation of sea surface temperature using data obtained from the Advanced Very High Resolution Radiometer (AVHRR) on board the National Oceanic and Atmospheric Administration (NOAA) series of satellites. The algorithms were validated by comparison with in situ measurements of sea temperature obtained from a hydrographical buoy located off the coast of northern Chile (21°21’S, 70°6’W; Tarapacá Region), approximately 3 km from the coast. The best results were obtained by the application of the algorithm proposed by Sobrino & Raissouni (2000). The mean and standard deviation of the differences between the temperatures measured in situ and those estimated by SW were 0.3º and 0.8ºK, respectively.