SSHCZO -- Ground Penetrating Radar (GPR) -- Shale Hills, Missed Grouse -- (2013-2013)

Three sets of 21 GPR lines were collected (single set at each location, unlike Shale Hills experiment which had duplicate lines). The set of lines are diagramed in GPR_grid_2013.xlsx. Each group is identified by a line number given in FieldNotesWithLineNumbers. The three sets are pre-infiltration, after water infiltration, and after dye infiltration. The water infiltration pre-wet the soil to extend the range of the dye migration. All of these were collected in a single day. Duplicate radar lines provide a measure of data reproducibility and sensitivity. Processed radargrams are available in the appendix of the Pitman master’s thesis. Processing parameters are provided there. A MALA GPR with 800 Mhz shielded antenna was used. The sample interval was 0.1164 ns. The time window was 46.434 nanoseconds (400 samples per trace). A trace was collected every 1 cm along the lines triggered by the Mala survey wheel attached to the antenna. The antenna was pulled by hand, but guided by a rigid board for reproducible location. A distance measuring wheel was used to encode the horizontal position..

共收集了三组21条GPR线数据（每个地点一组，与Shale Hills实验中的重复线不同）。这些线数据以GPR_grid_2013.xlsx文件中的图表形式呈现。每个组别通过FieldNotesWithLineNumbers中给出的线号进行识别。三组数据分别为预浸润、水浸润后以及染色剂浸润后的状态。水浸润预先湿润土壤，以扩大染色剂迁移的范围。所有数据均在同一天内收集。重复的雷达线提供了数据可重复性和灵敏度的衡量指标。经过处理的雷达图可在Pitman硕士学位论文的附录中找到，其中也提供了处理参数。实验中使用了配备800 MHz屏蔽天线的MALA GPR设备。采样间隔为0.1164纳秒。时间窗口为46.434纳秒（每条轨迹400个样本）。沿线每1厘米收集一个轨迹，由天线上的Mala探测轮触发。天线由手拉动，但由一块刚性板引导以确保位置的可重复性。使用距离测量轮对水平位置进行编码。