Stable water isotope data from Arctic Alaska snow pits in 2019

Stable water isotope data from snow stratigraphic layers in Arctic Alaska snow pits. The sampling targeted individual stratigraphic layers in the snow profile characterized by hand hardness test, texture, visual appearance, and density. Snow pit physiographical data for the same snow pits available: Stine Højlund Pedersen, Glen Liston, and Jeffrey Welker. 2019. Snow depth and snow density measured in Arctic Alaska for caribou winter applications in 2018 and 2019. Arctic Data Center. doi:10.18739/A2MS3K24P. Depth-integrated stable water isotope samples were taken from each identified layer using a plastic coring tube. Data were collected between 6 March - 2 April 2019 field campaign within the general wintering range of the Central Arctic caribou Herd (CAH). The data were collected as a part of the National Science Foundation project "Nutritional Landscapes of Arctic Caribou: Observations, Experiments, and Models Provide Process-Level Understanding of Forage Traits and Trajectories". The snow water isotope data was used to to understand the winter moisture origin in Arctic Alaska, and study how post depositional processes modify the snowpack and its isotope stratigraphy.阿拉斯加北极地区雪坑中雪层地层的稳定水同位素数据。本次采样针对雪剖面中经手压硬度测试、纹理、视觉特征及密度表征的单个地层开展。同批雪坑的雪坑地貌数据可于以下来源获取：Stine Højlund Pedersen、Glen Liston及Jeffrey Welker，2019年。《2018与2019年阿拉斯加北极地区驯鹿越冬调查所测得的雪深与雪密度》，北极数据中心（Arctic Data Center），DOI: 10.18739/A2MS3K24P。研究人员采用塑料取芯管从每个已识别的地层中采集深度积分型稳定水同位素样品。数据采集于2019年3月6日至4月2日的野外考察期间，采样区域位于北极中部驯鹿群（Central Arctic Caribou Herd, CAH）的常规越冬范围之内。本数据集为美国国家科学基金会（National Science Foundation）项目「北极驯鹿的营养景观：通过观测、实验与模型解析食料特性与动态的过程级机制」的一部分采集所得。本次雪水同位素数据旨在解析阿拉斯加北极地区冬季水汽来源，并探讨沉积后过程如何改造积雪层及其同位素地层结构。