A ground-penetrating radar study of active layer thicknesses in areas of moist sedge and wet sedge tundra near Bethel, Alaska, U.S.A.
A ground-penetrating radar study of active layer thicknesses in areas of moist sedge and wet sedge tundra near Bethel, Alaska, U.S.A.
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对美国阿拉斯加伯特利附近潮湿莎草和湿莎草苔原区域活动层厚度的探地雷达研究
DOI：
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发表时间：
1990
期刊：
影响因子：
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通讯作者：
M. F. Gross
中科院分区：
文献类型：
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作者：
J. Doolittle;M. Hardisky;M. F. Gross
在阿拉斯加贝塞尔附近使用探地雷达（GPR）技术来比较潮湿莎草和湿莎草苔原区域之间活动层的厚度。一旦在现场安装完毕，探地雷达就提供了一种快速、准确且有效的方法来确定冻土深度和活动层的厚度。在粉质土壤地区，湿莎草苔原下活性层的平均厚度（64 厘米）比湿莎草苔原下（38 厘米）深得多。在粉质土壤下面的潮湿莎草苔原地区，冻土层的深度相对较浅，活性层厚度为 17 至 63 厘米。
Ground-penetrating radar (GPR) techniques were used near Bethel, Alaska, to compare the thicknesses of the active layer between areas of moist sedge and wet sedge tundra. Once set up in the field, the GPR provided a rapid, accurate, and effective means for determining the depth to frozen soil and the thickness of the active layer. In areas of silty soil, the average thickness of the active layer under wet sedge tundra (64 cm) was considerably deeper than under moist sedge tundra (38 cm). In areas of moist sedge tundra underlain by silty soils, depths to frozen soil layers were relatively shallow with active layer thicknesses ranging from 17 to 63 cm.