Modelled and Observed Diurnal SST Signals: "SSTDV:R.EX.-IM.A.M." Project Preliminary Results

Ioanna Karagali, Jacob Høyer, Pierre LeBorgne, Charlotte Bay Hasager

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    Abstract

    This study presents some of the preliminary results from the ESA Support To Science Element (STSE) funded project on the Diurnal Variability of the Sea Surface Temperature, regarding its Regional Extend and Implications in Atmospheric Modelling (SSTDV:R.EX.–IM.A.M.). During this phase of the project, the focus is on the regional extend of diurnal variability. Particularly, extensive sensitivity tests regarding the definition of SSTfound fields show that using only quality 5 SEVIRI data results in warmer foundation fields SSTfound while there is an added ∼0.2 K variability when using multi-day composites. Diurnal warming signals exceeding 1 K are identified in the European Seas but also in the mid-latitudes of the North and South Atlantic as well as in areas with strong currents. In the attempt to connect temperature measurements from satellites and in situ instruments, the 1-dimensional General Ocean Turbulence Model (GOTM) is applied. Preliminary results show that the initial temperature profiles may give a warmer start-up in the model while the light extinction scheme is a controlling factor for the amplitude and vertical extend of the daily signal.

    Original languageEnglish
    Title of host publicationProceedings 2013 EUMETSAT Meteorological Satellite Conference
    Number of pages8
    Publication date2013
    Publication statusPublished - 2013
    Event2013 EUMETSAT Meterological Satellite Conference and 19th American Meteorological Society AMS Satellite Meteorology, Oceanography, and Climatology Conference: EUMETSAT & AMS 2013 - Vienna, Austria
    Duration: 16 Sept 201320 Sept 2013
    http://www.eumetsat.int/website/home/News/ConferencesandEvents/DAT_2027670.html

    Conference

    Conference2013 EUMETSAT Meterological Satellite Conference and 19th American Meteorological Society AMS Satellite Meteorology, Oceanography, and Climatology Conference
    Country/TerritoryAustria
    CityVienna
    Period16/09/201320/09/2013
    Internet address

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