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Article: Validating MODIS land surface reflectance and albedo products: Methods and preliminary results

TitleValidating MODIS land surface reflectance and albedo products: Methods and preliminary results
Authors
Issue Date2002
Citation
Remote Sensing of Environment, 2002, v. 83, n. 1-2, p. 149-162 How to Cite?
AbstractThis paper presents the general methods and some preliminary results of validating Moderate-Resolution Imaging Spectroradiometer (MODIS) land surface reflectance and albedo products using ground measurements and Enhanced Thematic Mapper Plus (ETM+) imagery. Since ground "point" measurements are not suitable for direct comparisons with MODIS pixels of about 1 km over heterogeneous landscapes, upscaling based on high-resolution remotely sensed imagery is critical. In this study, ground measurements at Beltsville, MD were used to calibrate land surface reflectance and albedo products derived from ETM+ imagery at 30 m, which were then aggregated to the MODIS resolution for determining the accuracy of the following land surface products: (1) bidirectional reflectance from atmospheric correction, (2) bidirectional reflectance distribution function (BRDF), (3) broadband albedos, and (4) nadir BRDF-adjusted reflectance. The initial validation results from ground measurements and two ETM+ images acquired on October 2 and November 3, 2000 showed that these products are reasonably accurate, with typically less than 5% absolute error. Final conclusions on their accuracy depend on more validation results. © 2002 Elsevier Science Inc. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/321266
ISSN
2023 Impact Factor: 11.1
2023 SCImago Journal Rankings: 4.310
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLiang, Shunlin-
dc.contributor.authorFang, Hongliang-
dc.contributor.authorChen, Mingzhen-
dc.contributor.authorShuey, Chad J.-
dc.contributor.authorWalthall, Charlie-
dc.contributor.authorDaughtry, Craig-
dc.contributor.authorMorisette, Jeff-
dc.contributor.authorSchaaf, Crystal-
dc.contributor.authorStrahler, Alan-
dc.date.accessioned2022-11-03T02:17:45Z-
dc.date.available2022-11-03T02:17:45Z-
dc.date.issued2002-
dc.identifier.citationRemote Sensing of Environment, 2002, v. 83, n. 1-2, p. 149-162-
dc.identifier.issn0034-4257-
dc.identifier.urihttp://hdl.handle.net/10722/321266-
dc.description.abstractThis paper presents the general methods and some preliminary results of validating Moderate-Resolution Imaging Spectroradiometer (MODIS) land surface reflectance and albedo products using ground measurements and Enhanced Thematic Mapper Plus (ETM+) imagery. Since ground "point" measurements are not suitable for direct comparisons with MODIS pixels of about 1 km over heterogeneous landscapes, upscaling based on high-resolution remotely sensed imagery is critical. In this study, ground measurements at Beltsville, MD were used to calibrate land surface reflectance and albedo products derived from ETM+ imagery at 30 m, which were then aggregated to the MODIS resolution for determining the accuracy of the following land surface products: (1) bidirectional reflectance from atmospheric correction, (2) bidirectional reflectance distribution function (BRDF), (3) broadband albedos, and (4) nadir BRDF-adjusted reflectance. The initial validation results from ground measurements and two ETM+ images acquired on October 2 and November 3, 2000 showed that these products are reasonably accurate, with typically less than 5% absolute error. Final conclusions on their accuracy depend on more validation results. © 2002 Elsevier Science Inc. All rights reserved.-
dc.languageeng-
dc.relation.ispartofRemote Sensing of Environment-
dc.titleValidating MODIS land surface reflectance and albedo products: Methods and preliminary results-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/S0034-4257(02)00092-5-
dc.identifier.scopuseid_2-s2.0-0036845164-
dc.identifier.volume83-
dc.identifier.issue1-2-
dc.identifier.spage149-
dc.identifier.epage162-
dc.identifier.isiWOS:000179160200011-

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