基于Sentinel-1雷达数据的青藏高原地区土壤水分反演研究

方西瑶,蒋玲梅,崔慧珍

Soil Moisture Retrieval in the Tibetan Plateau based on Sentinel-1 Radar Data

Xiyao Fang,Lingmei Jiang,Huizhen Cui

表3 各站点土壤水分反演精度及土壤水分测量值与雷达后向散射系数相关性

Table 3 The accuracy of soil moisture retrieval and the correlation between soil moisture measurements and radar backscattering coefficient at each site

站点 R RMSE BIAS Rvv Rvh 那曲 0.828 0.038 -0.021 0.818 0.632 纳木错 0.717 0.079 0.058 0.655 0.183 查拉坪 0.662 0.074 -0.056 0.397 0.519 玛沁 0.526 0.055 -0.034 0.613 0.360 曲麻莱 0.726 0.040 -0.016 0.804 0.704