Seasonal soil moisture measurements from a Circumarctic Active Layer Monitoring (CALM) grid, Barrow, Alaska, 2016

Seasonal soil moisture measurements were collected during the 2016 growing season at each Circumarctic Active Layer Monitoring (CALM) grid subset plot (30) in Utqiaġvik (formerly Barrow), Alaska. At each plot one soil moisture measurement was acquired, the date, start and end times, and the people present were also recorded. Moisture 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.

2016年生长季期间，研究人员在阿拉斯加州乌特恰维克（旧称巴罗）的环北极活动层监测（Circumarctic Active Layer Monitoring, CALM）网格的30个子样地中采集了季节性土壤湿度数据。针对每个样地，研究人员完成1次土壤湿度测量，并同步记录了测量日期、测量起止时刻以及在场人员信息。为降低对植被的干扰，所有湿度测量均在每个样地的最东北外侧角落开展。本数据集属于北极观测网络（Arctic Observing Network, AON）-国际冻原实验（International Tundra Experiment, ITEX）计划的一部分，旨在系统刻画高空间尺度下地表湿度与地表结构的季节性变化特征。