Jiang Hong-bo, Qin Qi-ming, Zhang Ning, Dong Heng, Chen Chao
School of Earth and Space Science, Peking University, Beijing 100871, China.
Guang Pu Xue Yu Guang Pu Fen Xi. 2011 Dec;31(12):3342-6.
For the needs of snow cover monitoring using multi-source remote sensing data, in the present article, based on the spectrum analysis of different depth and area of snow, the effect of snow depth on the results of snow cover retrieval using normalized difference snow index (NDSI) is discussed. Meanwhile, taking the HJ-1B and MODIS remote sensing data as an example, the snow area effect on the snow cover monitoring is also studied. The results show that: the difference of snow depth does not contribute to the retrieval results, while the snow area affects the results of retrieval to some extents because of the constraints of spatial resolution.
为满足利用多源遥感数据进行积雪监测的需求，本文基于对不同深度和面积积雪的光谱分析，探讨了积雪深度对利用归一化差异积雪指数（NDSI）进行积雪覆盖反演结果的影响。同时，以HJ - 1B和MODIS遥感数据为例，研究了积雪面积对积雪覆盖监测的影响。结果表明：积雪深度差异对反演结果影响不大，而积雪面积由于空间分辨率的限制在一定程度上影响反演结果。
