The Normalization of Surface Anisotropy Effects Present in SEVIRI Reflectances by Using the MODIS BRDF Method

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dc.contributor.authorShisanya, C.A.
dc.contributor.authorProud, Simon Richard
dc.contributor.authorZhang, Qingling
dc.contributor.authorSchaaf, Crystal Author
dc.contributor.authorFensholt, Rasmus
dc.contributor.authorRasmussen, Mads Olander
dc.contributor.authorMutero, Wycliffe
dc.contributor.authorMbow, Cheikh
dc.contributor.authorAnyamba, Assaf
dc.contributor.authorPak, Ed
dc.date.accessioned2014-11-20T08:13:52Z
dc.date.available2014-11-20T08:13:52Z
dc.date.issued2014
dc.descriptionDOI: 10.1109/TGRS.2013.2294602en_US
dc.description.abstractA modified version of the MODerate resolution Imaging Spectroradiometer (MODIS) bidirectional reflectance distribution function (BRDF) algorithm is presented for use in the angular normalization of surface reflectance data gathered by the Spinning Enhanced Visible and InfraRed Imager (SEVIRI) aboard the geostationary Meteosat Second Generation (MSG) satellites. We present early and provisional daily nadir BRDF-adjusted reflectance (NBAR) data in the visible and near-infrared MSG channels. These utilize the high temporal resolution of MSG to produce BRDF retrievals with a greatly reduced acquisition period than the comparable MODIS products while, at the same time, removing many of the angular perturbations present within the original MSG data. The NBAR data are validated against reflectance data from the MODIS instrument and in situ data gathered at a field location in Africa throughout 2008. It is found that the MSG retrievals are stable and are of high-quality across much of the SEVIRI disk while maintaining a higher temporal resolution than the MODIS BRDF products. However, a number of circumstances are discovered whereby the BRDF model is unable to function correctly with the SEVIRI observations-primarily because of an insufficient spread of angular data due to the fixed sensor location or localized cloud contamination.en_US
dc.description.sponsorshipIEEE Geoscience and Remote Sensing Societyen_US
dc.identifier.citationGeoscience and Remote Sensing, IEEE Transactions on (Volume:52 , Issue: 10 )Page(s): 6026 - 6039 2014en_US
dc.identifier.issn0196-2892
dc.identifier.urihttp://ir-library.ku.ac.ke/handle/123456789/11710
dc.language.isoenen_US
dc.publisherIEEEen_US
dc.subjectAngular effectsen_US
dc.subjectMODerate resolution Imaging Spectroradiometer (MODIS)en_US
dc.subjectMeteosat Second Generation (MSG)en_US
dc.subjectSpinning Enhanced Visible and InfraRed Imager (SEVIRI)en_US
dc.subjectanisotropy bidirectional reflectance distribution function (BRDF)en_US
dc.subjectland surface reflectanceen_US
dc.titleThe Normalization of Surface Anisotropy Effects Present in SEVIRI Reflectances by Using the MODIS BRDF Methoden_US
dc.typeArticleen_US
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