Chuanyu Fan, Chen Cheng, Peng Qi, Xiangyuan Liu, Xijin Wang, Qingshan Xu. Retrieval of Snow Grain Size and Albedo Using Two Radiative Transfer Models[J]. Acta Optica Sinica, 2020, 40(9): 0901002
- Acta Optica Sinica
- Vol. 40, Issue 9, 0901002 (2020)
Fig. 1. Schematic diagram of retrieval method of snow grain size and snow albedo
Fig. 2. Snow reflectance of HYPERION and MODIS data
Fig. 3. HYPERION scenes of study area before and after preprocessing. (a) Before preprocessing; (b) after preprocessing
Fig. 4. MOD09GA scene at the same place and the same period
Fig. 5. Snow grain size results of study area using method 1, method 2, method 3 with MODIS and HYPERION data. (a) MODIS data and method 1; (b) MODIS data and method 2; (c) MODIS data and method 3; (d) HYPERION data and method 1; (e) HYPERION data and method 2; (f) HYPERION data and method 3
Fig. 6. Snow albedo under different snow conditions (DISORT model)
Fig. 7. Snow black-sky albedo calculation for different snow grain sizes retrieved by method 3 at different visible bands
Fig. 8. Snow black-sky albedo calculation for different snow grain sizes retrieved by different methods
Fig. 9. Snow white-sky albedo calculation for different snow grain sizes retrieved by different methods
Fig. 10. Black-sky albedo and white-sky albedo calculated using ART theory and albedo calculated using DISORT model with the same area. (a) 0.3-- 5.0 μm; (b) 0.3--1.5 μm
Fig. 11. Albedo of study area calculated using DISORT model with snow containing black carbon. (a) 0.3--5.0 μm; (b) 0.3--1.1 μm
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