NDLI: Comparison between satellite and in situ sea surface temperature data in the Western Mediterranean Sea

Content Provider	Springer Nature Link
Author	Alvera Azcárate, Aida Troupin, Charles Barth, Alexander Beckers, Jean Marie
Copyright Year	2011
Abstract	A comparison between in situ and satellite sea surface temperature (SST) is presented for the Western Mediterranean Sea during 1999. Several international databases are used to extract in situ data (World Ocean Database, MEDAR/Medatlas, Coriolis Data Center, International Council for the Exploration of the Sea and International Comprehensive Ocean-Atmosphere Data Set). The in situ data are classified into different platforms or sensors (conductivity–temperature–depth, expendable bathythermographs, drifters, bottles, and ships), in order to assess the relative accuracy of these type of data with respect to Advanced Very High Resolution Radiometer SST satellite data. It is shown that the results of the error assessment vary with the sensor type, the depth of the in situ measurements, and the database used. Ship data are the most heterogeneous data set, and therefore present the largest differences with respect to in situ data. A cold bias is detected in drifter data. The differences between satellite and in situ data are not normally distributed. However, several analysis techniques, as merging and data assimilation, usually require Gaussian-distributed errors. The statistics obtained during this study will be used in future work to merge the in situ and satellite data sets into one unique estimation of the SST.
Starting Page	767
Ending Page	778
Page Count	12
File Format	PDF
ISSN	16167341
Journal	Deutsche Hydrografische Zeitschrift
Volume Number	61
Issue Number	6
e-ISSN	16167228
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-04-13
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Sea surface temperature Data comparison Satellite In situ Mediterranean Sea Meteorology/Climatology Oceanography Geophysics/Geodesy Environmental Monitoring/Analysis Fluid- and Aerodynamics
Content Type	Text
Resource Type	Article
Subject	Oceanography

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