Subsurface Temperature Data from Seven Rock Glaciers in Rocky Mountain National Park and Niwot Ridge LTER, Colorado, USA, 2018-2019

HOBO temperature-sensing data loggers (hereafter, sensors) were placed under the surface of seven rock glaciers predicted to have the presence (n=4) or absence (n=3) of sub-surface ice in Rocky Mountain National Park and near Niwot Ridge Long-term Ecological Research site in Colorado. Sub-surface temperatures were recorded to evaluate habitat differences among American pika populations. All sensors (model H08 pro, H08, or H02; Onset Computer Corporation, onsetcomp.com) recorded temperature (±0.2° Celsius) every one or two hours for one year starting in September 2018. Each rock glacier received at least one sensor, positioned near the center and near pika sign. Three rock glaciers received an additional sensor positioned near the edge of the rock glacier near pika sign. Sensors were placed at similar depths (~0.75 m) and similar aspects.

HOBO温度传感数据记录仪（以下简称传感器）被布设在美国科罗拉多州落基山国家公园及尼沃特岭长期生态研究站点附近的7处岩冰川表层下方，其中4处岩冰川被预测存在地下冰，剩余3处则无地下冰。通过记录地下温度，本研究旨在评估北美鼠兔种群的生境差异。所有传感器型号为H08 pro、H08或H02（由Onset计算机公司生产，官网为onsetcomp.com），测温精度可达±0.2摄氏度，自2018年9月起，以每1或2小时一次的频率连续记录时长一年。每处岩冰川至少部署1台传感器，布设位置分别靠近岩冰川中心以及鼠兔活动痕迹附近；其中3处岩冰川额外增设1台传感器，部署于岩冰川边缘且紧邻鼠兔活动痕迹处。所有传感器的埋设深度相近（约0.75米），朝向也保持一致。