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ISPRS Int. J. Geo-Inf. 2018, 7(1), 30; doi:10.3390/ijgi7010030

Comparison of Split Window Algorithms for Retrieving Measurements of Sea Surface Temperature from MODIS Data in Near-Land Coastal Waters

Research Institute for Geo-Hydrological Protection (IRPI), National Research Council (CNR), Perugia 06128, Italy
Received: 10 November 2017 / Revised: 9 January 2018 / Accepted: 12 January 2018 / Published: 18 January 2018
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Abstract

Split window (SW) methods, which have been successfully used to retrieve measurements of land surface temperature (LST) and sea surface temperature (SST) from MODIS images, were exploited to evaluate the SST data of three sections of Italian coastal waters. For this purpose, sea surface emissivity (SSE) values were estimated by adding the effects of salinity and total suspended particulate matter (SPM) concentrations, sea surface wind speed, and zenith observation angle. The total column atmospheric water vapor contents were retrieved from MODIS data. SST data retrieved from MODIS images using these algorithms were compared with SSTskin measurements evaluated from in situ data. The comparison showed that the algorithms for retrieving LST measurements minimized the error in SST data in near-land coastal waters with respect to the algorithms for retrieving SST measurements: a method for retrieving LST measurements highlighted the smallest root-mean-square deviation (RMSD) value (0.48 K) and values of maximum bias and standard deviation (σ) equal to −3.45 K and 0.41 K; the current operation algorithm for retrieving LST data highlighted the smallest values of maximum bias and σ (−1.37 K and 0.35 K) and an RMSD value of 0.66 K; and the current operation algorithm for retrieving global measurements of SST showed values of RMSD, maximum bias, and σ equal to 0.68 K, −1.90 K, and 0.40 K, respectively. View Full-Text
Keywords: coastal waters; split window algorithm; land surface temperature; sea surface temperature; sea surface emissivity; total suspended particulate matter; total column atmospheric water vapour content coastal waters; split window algorithm; land surface temperature; sea surface temperature; sea surface emissivity; total suspended particulate matter; total column atmospheric water vapour content
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Cavalli, R.M. Comparison of Split Window Algorithms for Retrieving Measurements of Sea Surface Temperature from MODIS Data in Near-Land Coastal Waters. ISPRS Int. J. Geo-Inf. 2018, 7, 30.

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