STARDUST II - Spatial and Temporal Assessment of high Resolution Depth profiles Using novel Sampling Technologies
The fate of pollutants in fluvial and marine sediments in cross-border zones
Introduction Objectives News Downloads Data System Pictures Partners

Data System

People |  Institutes |  Publications |  Datasets |  Data (login)

[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina
A Spectral Aging Model for the Meteosat-7 Visible Band
Decoster, I.; Clerbaux, N.; Baudrez, E.; Dewitte, S.; Ipe, A.; Nevens, S.; Velazquez Blazquez, A.; Cornelis, J. (2013). A Spectral Aging Model for the Meteosat-7 Visible Band. J. Atmos. Oceanic. Technol. 30(3): 496-509. dx.doi.org/10.1175/JTECH-D-12-00124.1
In: Journal of Atmospheric and Oceanic Technology. American Meteorological Society: Boston, MA. ISSN 0739-0572; e-ISSN 1520-0426
Peer reviewed article  
Beschikbaar in  Auteurs 
Auteurs  Top 
  • Decoster, I.
  • Clerbaux, N.
  • Baudrez, E.
  • Dewitte, S.
  • Ipe, A.
  • Nevens, S.
  • Velazquez Blazquez, A.
  • Cornelis, J.
Abstract
    For more than 30 years, the Meteosat satellites have been in a geostationary orbit around the earth. Because of the high temporal frequency of the data and the long time period, this database is an excellent candidate for fundamental climate data records (FCDRs). One of the prerequisites to create FCDRs is an accurate and stable calibration over the full data period. Because of the presence of contamination on the instrument in space, a degradation of the visible band of the instruments has been observed. Previous work on the Meteosat First Generation satellites, together with results from other spaceborne instruments, led to the idea that there is a spectral component to this degradation. This paper describes the model that was created to correct the Meteosat-7 visible (VIS) channel for these spectral aging effects. The model assumes an exponential temporal decay for the gray part of the degradation and a linear temporal decay for the wavelength-dependent part. The effect of these two parts of the model is tuned according to three parameters; 253 clear-sky stable earth targets with different surface types are used together with deep convective cloud measurements to fit these parameters. The validation of the model leads to an overall stability of the Meteosat-7 reflected solar radiation data record of about 0.66 W m(-2) decade(-1).
Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteurs 
STARDUST II is a project funded by the INTERREG III A programme (France/Walloon Region/Flanders French-Flemish subprogramme) of the European Community's Regional Development Fund.
Hosted by the Flanders Marine Institute (VLIZ)