Show simple item record Islam, Tanvir Srivastava, P. K. Petropoulos, George 2016-04-27T22:01:51Z 2016-04-27T22:01:51Z 2016-12-01
dc.identifier.citation Islam , T , Srivastava , P K & Petropoulos , G 2016 , ' Uncertainty quantification in the Infrared surface Emissivity Model (ISEM) ' IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing , vol. 9 , no. 12 , pp. 5888-5892 . en
dc.identifier.issn 1939-1404
dc.identifier.other PURE: 7734858
dc.identifier.other PURE UUID: 2aecf416-3527-45f4-9bd3-e59df6133406
dc.identifier.other Scopus: 84971440129
dc.identifier.other 2160/42755
dc.description This is the author accepted manuscript. The final version is available from IEEE via en
dc.description.abstract Accurate modeling of surface emissivity is imperative for accurate radiative transfer simulation and forward modeling of satellite radiance observations. The Radiative Transfer for (A)TOVS (RTTOV) fast radiative transfer model uses the Infrared Surface Emissivity Model (ISEM) for the computation of sea surface emissivity in the infrared (IR) spectrum. However, the model does not incorporate the effect of surface-emitted surface reflected (SESR) radiation and dependence of wind speed in the emissivity calculation. This paper investigates the uncertainty in the ISEM model caused by ignoring the SESR radiation and wind speed effects in the 3 IR bands, 3.7, 11, and 12 μm. First, we develop a new model called Surface Emissivity Model in IR with SESR (SEMIS) that takes the SESR radiation and wind speed effects into account. The uncertainty in the ISEM model is then quantified by comparing the ISEM emissivity against SEMIS derived emissivity. The comparison results suggest that two models are in excellent agreement below \sim! 60^\circ emission angle, implying no notable uncertainty in the ISEM model at smaller angles. Nevertheless, uncertainty tends to significantly increase with increasing emission angle above \sim !60^\circ , which is even more notable at high wind speed ( {\rm{\sim! 15, m/s}} ). Two models are further compared against emissivity measurements from a radiometer. The ISEM model has produced large errors as opposed to the SEMIS en
dc.language.iso eng
dc.relation.ispartof IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing en
dc.rights en
dc.title Uncertainty quantification in the Infrared surface Emissivity Model (ISEM) en
dc.type /dk/atira/pure/researchoutput/researchoutputtypes/contributiontojournal/article en
dc.description.version authorsversion en
dc.description.version other en
dc.description.version other en
dc.contributor.institution Department of Geography and Earth Sciences en
dc.description.status Peer reviewed en

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