CALIBRATION OF TDR DATA FOR MOISTURE ESTIMATION IN FRONZEN SOIL

CALIBRATION OF TDR DATA FOR MOISTURE ESTIMATION IN FRONZEN SOIL
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发表时间：
2011
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通讯作者：
Zhang Xiao-hong
Zhang Xiao-hong
中科院分区：
其他
文献类型：
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作者：
Zhang Xiao-hong

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时域反射法（Time Domain Reflectometry，TDR）是一种快速、准确的测量土壤表观相对介电常数的方法，在内蒙古河套灌区的温季和冷季进行了TDR测量。将液态水分为自由水和束缚水，利用Birchak模型进行标定，由于束缚水和冰，Birchak模型被应用于计算冻土中的未冻水含量。
As a rapid and accurate method Time Domain Reflectometry(TDR) is widely used to determine volumetric water content from apparent measured relative dielectric constant,e.TDR measurement was applied in Inner Mongolia Hetao Irrigation District of China both in warm season and cold season.For obtaining unfrozen water content,the liquid water was divided into free water and bound water to make calibration using Birchak model.Because of the similarity of dielectric property of bound water and ice,Birchak model was applied to evaluate unfrozen water content in frozen soil.