A Digital Thermometer to Enhance High Resolution Borehole Paleothermometry at Siple Dome and Beyond: a Unique Opportunity

0087273 Waddington该奖项支持数字探头的开发和测试，用于极地冰盖钻孔的高精度温度测量。这些测量是获得极地地区校准古温度记录的关键。目前最先进的系统是美国地质勘探局极地钻孔温度记录系统（PBTS），它使用模拟探头技术，在冰盖表面安装电子组件。 强风会干扰记录电子设备，迫使现场团队修改后勤计划以产生高质量的数据。 通过电缆传输数字信号的探头不会受到这些表面条件的影响，从而提高了现场操作的效率。 该项目采用了最近设计的数字探头，用于极地钻井液中低温下的PBTS系统。 这些探头将减少一些严格的硬件和程序的要求，目前的医疗系统。 这些新的数字探头将与目前使用的传感器一起进行校准，并将在Siple Dome进行测试，作为已经资助的钻孔温度测井计划的一部分。 最终的产品（除了一个工作钻孔温度记录系统与新的数字探头）将是一个出版物在冰川学杂志描述新的探头，比较，和新的研究机会，数字探头可以提供。

0087273 WaddingtonThis award supports the development and testing of digital probesfor high precision temperature measurements in boreholes in polarice sheets. These measurements are key to obtaining calibratedpaleotemperature records in the polar regions.The current state-of-the-art system is the USGS Polar BoreholeTemperature Logging System (PBTS), which uses analog probe technologywith the electronic package at the ice sheet surface. Strong winds candisturb the recording electronics, forcing the field team to modifylogistics plans to produce high quality data. Probes that transmitdigital signals up the cable would not be affected by these surfaceconditions, improving the efficiency of field operations. This projectwill adapt a recently-designed digital probe for use with the PBTS systemin cold temperatures in polar drilling fluids. These probes will reducesome of the stringent hardware and procedural requirements of the currentanalog system. These new digital probes will be calibrated alongside thecurrently used sensors and will be tested at Siple Dome as part of analready-funded program of borehole temperature logging. The final product(in addition to a working borehole temperature logging system with newdigital probes) will be a publication in the Journal of Glaciologydescribing the new probes, the comparisons, and the new researchopportunities that digital probes can offer.