MISR Radiance Anomalies Induced by Stratospheric Volcanic Aerosols

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dc.contributor.authorWu, Dong L.
dc.contributor.authorWang, Tao
dc.contributor.authorVárnai, Tamás
dc.contributor.authorLimbacher, James A.
dc.contributor.authorKahn, Ralph A.
dc.contributor.authorTaha, Ghassan
dc.contributor.authorLee, Jae
dc.contributor.authorGong, Jie
dc.contributor.authorYuan, Tianle
dc.date.accessioned2018-12-11T16:09:33Z
dc.date.available2018-12-11T16:09:33Z
dc.date.issued2018-11-23
dc.description.abstractThe 16-year MISR monthly radiances are analyzed in this study, showing significant enhancements of anisotropic scattering at high latitudes after several major volcanic eruptions with injection heights greater than 14 km. The anomaly of deseasonalized radiance anisotropy between MISR’s DF and DA views (70.5° forward and aft) is largest in the blue band with amplitudes amounting to 5–15% of the mean radiance. The anomalous radiance anisotropy is a manifestation of the stronger forward scattering of reflected sunlight due to the direct and indirect effects of stratospheric volcanic aerosols (SVAs). The perturbations of MISR radiance anisotropy from the Kasatochi (August 2008), Sarychev (June 2009), Nabro (June 2011) and Calbuco (April 2015) eruptions are consistent with the poleward transported SVAs observed by CALIOP and OMPS-LP. In a particular scene over the Arctic Ocean, the stratospheric aerosol mid-visible optical depth can reach as high as 0.2–0.5. The enhanced global forward scattering by SVAs has important implications for the shortwave radiation budget.en_US
dc.description.sponsorshipThis research was funded by NASA Terra/MISR and Aura Science Teamsen_US
dc.description.urihttps://www.mdpi.com/2072-4292/10/12/1875en_US
dc.format.extent21 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/M26H4CV2X
dc.identifier.citationDong L. Wu , Tao Wang , Tamás Várnai , James A. Limbacher, Ralph A. Kahn , Ghassan Taha , Jae N. Lee , Jie Gong and Tianle Yuan , MISR Radiance Anomalies Induced by Stratospheric Volcanic Aerosols, Remote Sens. 2018, 10(12), 1875; https://doi.org/10.3390/rs10121875en_US
dc.identifier.urihttps://doi.org/10.3390/rs10121875
dc.identifier.urihttp://hdl.handle.net/11603/12221
dc.language.isoen_USen_US
dc.publisherMDPIen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Joint Center for Earth Systems Technology
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
dc.rightsPublic Domain Mark 1.0*
dc.rights.urihttps://creativecommons.org/publicdomain/mark/1.0/*
dc.subjectradiance anisotropyen_US
dc.subjectvolcanic aerosol direct and indirect effectsen_US
dc.subjectshortwave radiationen_US
dc.titleMISR Radiance Anomalies Induced by Stratospheric Volcanic Aerosolsen_US
dc.typeTexten_US
dcterms.creatorhttps://orcid.org/0000-0001-9814-9855

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