| | Nisbet, R.M. | (1) |
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| | Applicability of satellite-derived sea-surface temperatures in the Fiji region Author(s): McKenzie, R.L., Nisbet, R.M. Corporate Author: IMR,USP Year: 1982 Held at: IMR; SPC; USP USPL Call Number: Pac-GC167 .F5 .M31 1982 LC Subject(s): Remote sensing, Ocean Temperature Identifiers: IMR; Hydroclimate; Sea temperature Abstract: We have examined NOAA-5 satellite-derived sea-surface temperature data in the Fiji region for a one-year period starting September 1977. Time series analysis revealed that the satellite data has spatial and temporal resolutions characterized by a coherence time of about 4 days and a coherence length of 850 km. A systematic difference T between ship and satellite readings was found to correlate significantly with the surface temperature itself, with latitude, and with vapor pressure. Several possible models to explain the behavior of triangle T are introduced. We conclude that while surface emissivity variations, incomplete cloud decontamination, and cooling across the air-sea interface may all be contributory factors, the bulk of the discrepancy between ship and satellite arises from insufficient corrections being made for atmospher attenuation. Control No.: 00006090.nul
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