期刊
REMOTE SENSING OF ENVIRONMENT
卷 201, 期 -, 页码 256-274出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.rse.2017.09.020
关键词
MODIS; VIIRS; Long-term continuity; BRDF; Albedo; NBAR
资金
- NASA [NNX14A173G, NNX14AQ18A]
- USGS [G12PC00072]
- Direct For Biological Sciences
- Division Of Environmental Biology [1026843] Funding Source: National Science Foundation
- Directorate For Geosciences
- Office of Polar Programs (OPP) [1503912] Funding Source: National Science Foundation
- NASA [674220, NNX14AQ18A] Funding Source: Federal RePORTER
Bidirectional Reflectance Distribution Function (BRDF) model parameters, Albedo quantities, and Nadir BRDF Adjusted Reflectance (NBAR) products derived from the Visible Infrared Imaging Radiometer Suite (VITAS), on the Suomi-NPP (National Polar-orbiting Partnership) satellite are evaluated with spatially representative in situ tower albedometer measurements and through comparison with the MODerate Resolution Imaging Spectroradiometer (MODIS) long term record. White Sky Albedo (WSA), Black Sky Albedo (BSA), NBAR, and Quality Assurance (QA) results show that the VIIRS algorithm is performing well at the global scale and is able to provide global data products comparable with the heritage MODIS (with an absolute bias of 0.0069 for short-wave broadband WSA) despite the spectral, angular, and effective spatial resolution differences between the two sensors. Both VIIRS and MODIS albedo are shown to agree well with in situ albedo measurements at a number of spatially representative sites. This evaluation provides confidence that the high quality, daily VIIRS BRDF model parameters, Albedo, and NBAR products will be able to provide the long term continuity required by the modeling and monitoring communities.
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