Seasonal soil temperatures from a Circumarctic Active Layer Monitoring (CALM) grid, Atqasuk, Alaska, 2016

Seasonal soil temperature measurements were collected during the 2016 growing season at each Circumarctic Active Layer Monitoring (CALM) grid subset plot (30) in Atqasuk, Alaska. 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. 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.

本研究于2016年生长季，在阿拉斯加州阿特卡斯克的30个环北极活动层监测（Circumarctic Active Layer Monitoring, CALM）网格子集样地中采集季节性土壤温度数据。在每个样地内开展1次土壤温度观测，并同步记录观测日期、观测起止时刻以及在场人员信息。为降低对植被的干扰，土壤温度观测点位均设置在每个样地的东北最外侧角落。本次观测数据隶属于北极观测网（Arctic Observing Network, AON）-国际冻原实验（International Tundra Experiment, ITEX）项目，可用于记录高空间尺度下地表湿度与地表结构的季节变化特征。