Soil Temperature MISP (Mobile Instrumented System Platform) and CALM (Circumpolar Active Layer Monitoring) grids in Barrow and Atqasuk, Alaska, 2018

Seasonal soil temperature measurements were collected during the 2018 growing season at each Circumpolar Active Layer Monitoring (CALM) grid subset plot (30) and at each Mobile Instrumented System Platform (MISP). Both of these grids are located at Utqiaġvik (formerly Barrow), Alaska as well as in Atqasuk, Alaska. For CALM measurements, at each plot one temperature measurement was acquired, the date, start and end times, and the people present were also recorded. Soil temperature measurements were taken outside of every plot on the northeastern most corner in order to reduce disturbance of vegetation. For MISP measurements, at each grid meter one soil temperature measurement was acquired, the date, start and end times, and the people present were also recorded. Soil temperature measurements were taken on the north side of the grid in order to reduce disturbance of vegetation. These measurements are part of the Arctic Observing Network (AON) - International Tundra Experiment (ITEX) initiative and help to document seasonal changes in surface moisture and structure at high spatial scales.

本数据集采集了2018年生长季内，环极活动层监测（Circumpolar Active Layer Monitoring, CALM）网格样地子集（共30个）以及移动监测系统平台（Mobile Instrumented System Platform, MISP）各处的季节性土壤温度数据。上述两类监测网格均布设在美国阿拉斯加州乌特基亚维克（旧名巴罗）与阿塔萨库克地区。针对CALM监测项，每个样地采集1组土壤温度测量值，同步记录测量日期、起止时间及参与测量的人员信息。为降低对植被的干扰，土壤温度测量点位设于每个样地的东北最外侧角落。针对MISP监测项，每个网格测点处采集1组土壤温度测量值，同步记录测量日期、起止时间及参与测量的人员信息。为降低对植被的干扰，土壤温度测量点位设于网格北侧。本批测量数据隶属于北极观测网（Arctic Observing Network, AON）-国际苔原试验（International Tundra Experiment, ITEX）计划，旨在助力高空间尺度下地表湿度与地表结构的季节变化特征记录工作。