Pre-ABoVE: Active Layer Thickness and Soil Water Content, Barrow, Alaska, 2013

This data set provides estimates of Active Layer Thickness (ALT) determined with ground-based measurements, and calculated soil volumetric water content (VWC) at four selected sites around Barrow, Alaska in August 2013. ALT was determined using a ground-penetrating radar (GPR) system and traditional mechanical probing. Calculated uncertainties are also included. GPR measurements were taken along four transects of varying length (approx. 1 to 7 km). Mechanical probing included several high-density surveys (every 1 m within 100-m survey line) along each GPR transect. VWC of the active layer soil was calculated at 3-8 calibration points per site where the probe measurement was exactly co-located with a GPR trace.

本数据集提供了2013年8月于阿拉斯加巴罗附近四个选定地点，通过地面测量得出的活性层厚度（ALT）估计值，以及计算得出的土壤体积含水量（VWC）。活性层厚度系采用地面穿透雷达（GPR）系统和传统机械探测法确定。此外，还包含了计算的不确定性。GPR测量沿长度不一的四条剖面（约1至7公里）进行。机械探测则在每个GPR剖面内进行数个高密度调查（在100米调查线内的每1米处），并计算了活性层土壤的VWC，每个地点在探针测量与GPR轨迹精确重合的3至8个校准点进行计算。