地基微波遥感评估黄河源区草原下垫面土壤冻融过程研究
蒋雨芹,文军,吕少宁,王作亮,刘闻慧,武月月,邓浩

Study on evaluating soil freeze/thaw process of grassland underlying surface in source region of the Yellow River by using ground-based microwave remote sensing
Yuqin JIANG,Jun WEN,Shaoning LÜ,Zuoliang WANG,Wenhui LIU,Yueyue WU,Hao DENG
图7 在60°入射角下,使用“5-Max/Min”法FFX(fr)和FFX(th)参考值时四种冻结因子不同阈值下与参考数据集Tair(a),Tsoil2.5cm(b)和Tsoil5.0cm(c)匹配的准确度(虚线为固定阈值)
Fig.7 Under the incident angle of 60°, using the “5-Max/Min” method FFX (fr) and FFX (th) reference values,the four frost factors are compared with the reference data set Tair (a), Tsoil2.5cm (b)and Tsoil5.0cm (c) under different thresholds (The dotted line is a fixed threshold)