Eight Mile Lake Research Watershed, Carbon in Permafrost Experimental Heating Research (CiPEHR): Weekly thaw depth data, 2009-2022

The Carbon in Permafrost Experimental Heating Research (CiPEHR) project addresses the following questions: 1) Does ecosystem warming cause a net release of C from the ecosystem to the atmosphere?, 2) Does the decomposition of old C, that comprises the bulk of the soil C pool, influence ecosystem C loss?, and 3) How do winter and summer warming alone, and in combination, affect ecosystem C exchange? We are answering these questions using a combination of field and laboratory experiments to measure ecosystem carbon balance and radiocarbon isotope ratios at a warming experiment located in an upland tundra field site near Healy, Alaska in the foothills of the Alaska Range. This data set includes weekly thaw depth measurements collected from winter warming, summer warming, and control treatment plots at CiPEHR. Additional measurements from on-plot gas flux wells, water table monitoring wells, and off-plot locations are also reported.

永久冻土碳实验加热研究（Carbon in Permafrost Experimental Heating Research，CiPEHR）项目旨在解答以下三类科学问题：1. 生态系统升温是否会引发碳从生态系统向大气的净释放？2. 占土壤碳库主体的老碳分解过程，是否会对生态系统碳流失产生影响？3. 单独开展的冬季升温、夏季升温，以及二者联合作用，分别会如何影响生态系统碳交换？本项目结合野外与实验室实验手段，在位于阿拉斯加山脉山麓、阿拉斯加州希利镇附近的高地苔原野外升温实验样地中，测定生态系统碳平衡与放射性碳同位素比值，以此解答上述问题。本数据集包含CiPEHR项目冬季升温、夏季升温及对照处理样地的每周解冻深度监测数据。此外，数据集还收录了样地内气体通量监测井、地下水位监测井以及样地外点位的额外监测结果。