Chinese Optics Letters, Volume. 9, Issue 10, 102901(2011)

Modeling visible and near-infrared snow surface reflectance-simulation and validation

Hongyi Wu and Ling Tong
Author Affiliations
  • Institute of Geo-Spatial Information Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China
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    Retrieving snow surface reflectance is difficult in optical remote sensing. Hence, this letter evaluates five surface reflectance models, including the Ross-Li, Roujean, Walthall, modified Rahman and Staylor models, in terms of their capacities to capture snow reflectance signatures using ground measurements in Antarctica. The biases of all the models are less than 0.0003 in both visible and near-infrared regions. Moreover, with the exception of the Staylor model, all models have root-mean-square errors of around 0.02, indicating that they can simulate the reflectance magnitude well. The R2 performances of the Ross-Li and Roujean models are higher than those of the others, indicating that these two models can capture the angle distribution of snow surface reflectance better.

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    Hongyi Wu, Ling Tong. Modeling visible and near-infrared snow surface reflectance-simulation and validation[J]. Chinese Optics Letters, 2011, 9(10): 102901

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    Paper Information

    Category: Scattering

    Received: Mar. 21, 2011

    Accepted: Apr. 28, 2011

    Published Online: Jul. 13, 2011

    The Author Email:

    DOI:10.3788/col201109.102901

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