James Cave Epikarst Monitoring Drip Data: 2007-2018

Cave
drip measurements were made at three drip monitoring stations within James Cave
(Pulaski County, Virginia) from fall 2007 to winter 2018. Measurements were
made in mm on a 10 minute interval using HOBO® tipping bucket rain gauges and
stored on HOBO® multi-station data loggers. Measurements in mm can be converted
to ml (3.7 ml to 0.2 mm). Data were downloaded bimonthly to quarterly and
compiled to form a continuous time series.
Missing data reflect periods of instrumentation failure. The location of
cave drip monitoring sites can be found in Figure 4 of Groce-Wright (2021; http://hdl.handle.net/10919/104202). The geologic map can be found as Figure 3 in
Groce-Wright (2021; http://hdl.handle.net/10919/104202).
Photos of the drip monitoring sites within the cave can be found as Figure 5 in
Groce-Wright (2021; http://hdl.handle.net/10919/104202).

The
raw data were used in Groce-Wright (2021; http://hdl.handle.net/10919/104202) to
create drip hydrographs, which were analyzed using recession methods to
calculate alpha, the recession coefficient, which reflects the hydrogeologic
characteristics of the overlying epikarst (soil and weathered bedrock above the
cave), and the storage volume.

自2007年秋季至2018年冬季，于弗吉尼亚州帕尔马斯基郡的詹姆斯洞穴（James Cave）内的三个渗漏监测站进行了渗漏量的测量。测量采用HOBO®倾倒式雨量计，以毫米为单位，每十分钟进行一次，并将数据存储于HOBO®多站数据记录仪中。毫米单位的测量值可转换为毫升（3.7毫升相当于0.2毫米）。数据每两个月至每季度下载一次，并汇总形成连续的时间序列。数据缺失反映了仪器故障的时段。洞穴渗漏监测站的位置可参见Groce-Wright（2021）的第4图（http://hdl.handle.net/10919/104202）。地质图可参见Groce-Wright（2021）的第3图（http://hdl.handle.net/10919/104202）。洞穴内部渗漏监测站的照片可参见Groce-Wright（2021）的第5图（http://hdl.handle.net/10919/104202）。

原始数据被用于Groce-Wright（2021；http://hdl.handle.net/10919/104202）中创建渗漏流量过程线，并采用退水法进行分析，以计算反映覆盖洞穴的上层表生岩（土壤和洞穴上方风化的基岩）水文地质特性的α值（退水系数）以及储存体积。