Minnesota SPRUCE S1 Bog Peat Depth Determined by Push Probe and Ground Penetrating Radar: 2009-2010

This data set reports the thickness of peat for the S1 Bog, located in the Minnesota SPRUCE Experiment Site, measured directly with manual push probes on September 21 and 22, 2009, and measured by ground penetrating radar (GPR) across transects from January 26 to February 2, 2010 and June 2 to June 9, 2010. Also included are interpolated values of peat depth from both probe and GPR data for the S1 Bog at 1 meter square horizontal resolution. The key objectives of these geophysical field surveys were to define the S1 peat depth, basin geometry, and to provide additional subsurface information for selecting the optimal locations for experimental plots (i.e., rows of chambers). GPR was specifically used to obtain better estimates of peat depths to refine the existing 3-D model of the S1 basin geometry and to provide high-density data on peat stratigraphy and examine variations in mineral soil near the proposed experimental plots.

本数据集记录了位于明尼苏达SPRUCE试验场内的S1沼泽（S1 Bog）的泥炭厚度数据：2009年9月21日至22日采用手动推针完成直接测量；2010年1月26日至2月2日、2010年6月2日至6月9日期间，通过探地雷达（Ground Penetrating Radar, GPR）沿样带开展测量。数据集还包含基于手动推针与探地雷达数据，以1平方米水平分辨率插值得到的S1沼泽泥炭深度插值结果。本次地球物理野外调查的核心目标为：明确S1沼泽的泥炭厚度与盆地几何形态，并为筛选实验样地（即气室阵列）的最优布设点位提供额外地下信息。其中探地雷达专项用于获取更精准的泥炭厚度估算结果，以优化现有S1盆地几何形态三维模型；同时采集泥炭地层的高密度数据，进而探查拟布设实验样地周边的矿质土壤变化情况。