Narrowband to broadband conversions of land surface albedo: II. Validation

Autor:	Chad J Shuey, C.L. Walthall, Shunlin Liang, Raymond Hunt, Mingzhen Chen, Andrew L. Russ, Craig S. T. Daughtry, Hongliang Fang
Rok vydání:	2003
Předmět:	Surface (mathematics) Narrowband Series (mathematics) Broadband Radiative transfer Soil Science Radiometry Environmental science Geology Computers in Earth Sciences Albedo Residual Remote sensing
Zdroj:	Remote Sensing of Environment. 84:25-41
ISSN:	0034-4257
DOI:	10.1016/s0034-4257(02)00068-8
Popis:	In the first paper of this series, we developed narrowband to broadband albedo conversion formulae for a series of sensors. These formulae were determined based on extensive radiative transfer simulations under different surface and atmospheric conditions. However, it is important to validate the simulation results using independent measurement data. In this paper, the validation results for three broadband albedos (total-shortwave, -visible and -near-IR albedos) using ground measurement of several cover types on five different days at Beltsville, MD are presented. Results show that the conversion formulae in the previous paper are very accurate and the average residual standard errors of the resulting broadband albedos for most sensors are around 0.02, which meets the required accuracy for land surface modeling.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5c3ade879d15607511e93ab63acc3244 https://doi.org/10.1016/s0034-4257(02)00068-8 Zobrazit plný text záznamu Full Text from ScienceDirect