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Remote Sens. 2017, 9(5), 466; doi:10.3390/rs9050466

The CM SAF TOA Radiation Data Record Using MVIRI and SEVIRI

1
Royal Meteorological Institute of Belgium, Avenue Circulaire 3, BE-1180 Brussels, Belgium
2
Institute for Space Sciences, Freie Universität Berlin, Carl-Heinrich-Becker-Weg 6–10, D-12165 Berlin, Germany
3
Deutscher Wetterdienst, Frankfurterstr. 135, 63067 Offenbach, Germany
*
Author to whom correspondence should be addressed.
Academic Editors: Dongdong Wang, Xiaofeng Li and Prasad S. Thenkabail
Received: 17 February 2017 / Revised: 21 April 2017 / Accepted: 5 May 2017 / Published: 10 May 2017

Abstract

The CM SAF Top of Atmosphere (TOA) Radiation MVIRI/SEVIRI Data Record provides a homogenised satellite-based climatology of TOA Reflected Solar (TRS) and Emitted Thermal (TET) radiation in all-sky conditions over the Meteosat field of view. The continuous monitoring of these two components of the Earth Radiation Budget is of prime importance to study climate variability and change. Combining the Meteosat MVIRI and SEVIRI instruments allows an unprecedented temporal (30 min/15 min) and spatial (2.5 km/3 km) resolution compared to, e.g., the CERES products. It also opens the door to the generation of a long data record covering a 32 years time period and extending from 1 February 1983 to 30 April 2015. The retrieval method used to process the CM SAF TOA Radiation MVIRI/SEVIRI Data Record is discussed. The overlap between the MVIRI and GERB instruments in the period 2004–2006 is used to derive empirical narrowband to broadband regressions. The CERES TRMM angular dependency models and theoretical models are respectively used to compute the TRS and TET fluxes from the broadband radiances. The TOA radiation products are issued as daily means, monthly means and monthly averages of the hourly integrated values (diurnal cycle). The data is provided on a regular grid at a spatial resolution of 0.05 degrees and covers the region 70 N–70 S and 70 W–70 E. The quality of the data record has been evaluated by intercomparison with several references. In general, the stability in time of the data record is found better than 4 Wm 2 and most products fulfill the predefined accuracy requirements. View Full-Text
Keywords: earth radiation budget; top-of-atmosphere radiation; reflected solar; emitted thermal; meteosat; MVIRI; SEVIRI; climate data record earth radiation budget; top-of-atmosphere radiation; reflected solar; emitted thermal; meteosat; MVIRI; SEVIRI; climate data record
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Urbain, M.; Clerbaux, N.; Ipe, A.; Tornow, F.; Hollmann, R.; Baudrez, E.; Velazquez Blazquez, A.; Moreels, J. The CM SAF TOA Radiation Data Record Using MVIRI and SEVIRI. Remote Sens. 2017, 9, 466.

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