DTS measurements of groundwater - tidewater at the Bremerton Naval Complex, WA

If infrared mapping results are not definitive in identifying groundwater discharge locations, we will deploy another ground-based temperature measurement tool, a fiber optic distributed temperature sensor (FO-DTS), along specific areas of interest that have high potential for contaminated groundwater discharge. FO-DTS can be deployed directly on nearshore sediments along a 1 km stretch of shoreline and left in place for a few weeks to capture temperature changes over ranges of tidal cycles and sun/weather conditions (Henderson and others, 2009). FO-DTS measures temperature continuously along the length of the deployed fiber at a specified frequency, for example, every 15 minutes, so it provides highly refined temporal data along a transect, albeit not two-dimensional spatial data such as the infrared camera can provide. This work is conducted by Selker Metrics.

RAW DTS data can be found here: https://nevada.app.box.com/folder/172251130008

若红外测绘结果无法明确识别地下水排放位置，则将在具有潜在污染地下水排放高风险的兴趣区域部署另一款地面温度测量工具——光纤分布式温度传感器（FO-DTS）。FO-DTS可直接部署于沿岸1公里范围内的近岸沉积物上，并留置数周，以捕捉潮汐周期和天气条件下的温度变化（Henderson 等人，2009）。FO-DTS以指定频率沿部署光纤的长度连续测量温度，例如每15分钟一次，从而在横断面提供高度精细的时间数据，尽管如此，它并不能提供红外相机所能提供的二维空间数据。该研究由Selker Metrics团队执行。

原始DTS数据可在此处找到：https://nevada.app.box.com/folder/172251130008