ORBi: Alvera Azcarate Aïda - Comparison between satellite and in situ sea surface temperature data in the Western Mediterranean Sea

Reference : Comparison between satellite and in situ sea surface temperature data in the Western Med...


	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
	To cite this reference:	http://hdl.handle.net/2268/91870

Title :	Comparison between satellite and in situ sea surface temperature data in the Western Mediterranean Sea
Language :	English
Author, co-author :	Alvera Azcarate, Aïda [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > GeoHydrodynamics and Environment Research (GHER) >]
	Troupin, Charles [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > GeoHydrodynamics and Environment Research (GHER) >]
	Barth, Alexander [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > GeoHydrodynamics and Environment Research (GHER) >]
	Beckers, Jean-Marie [Université de Liège - ULg > Département d'astrophysique, géophysique et océanographie > GHER > > >]
Publication date :	2011
Journal title :	Ocean Dynamics
Publisher :	Springer Science & Business Media B.V.
Volume :	61
Issue/season :	6
Special issue title :	Multiparametric observation and analysis of the Sea, 42nd International Liège Colloquium
Pages :	767-778
Audience :	International
ISSN :	1616-7341
City :	Heidelberg
Country :	Germany
Keywords :	[en] Sea Surface Temperature ; Data Comparison ; Satellite Data ; In Situ Data ; Mediterranean Sea
Abstract :	[en] 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 (WOD), MEDAR/Medatlas, Coriolis Data Center, International Council for the Exploration of the Sea (ICES) and International Comprehensive Ocean-Atmosphere Data Set (ICOADS)). The in situ data are classified into different platforms or sensors (CTD, XBT, drifters, bottles, ships), in order to assess the relative accuracy of these type of data respect to AVHRR (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.
Research units :	Centre Interfacultaire de Recherches en Océanologie - MARE
Funders :	Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Name of the research project :	HiSea
Target :	Researchers ; Professionals
Permalink :	http://hdl.handle.net/2268/91870
	also: http://hdl.handle.net/2268/112574
DOI :	10.1007/s10236-011-0403-x
Other URL :	http://www.springerlink.com/content/r5784271357u5400/
	http://www.springerlink.com/content/?Topical+Collection=Topical+Collection+on+Multiparametric+observation+and+analysis+of+the+Sea

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Open access	WesternMed_20110121.pdf		Author preprint	1.35 MB	View/Open

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