Observed and modeled snow depth in Arctic Alaska 2001–2020

Distributed snow depth measured with automated snow-probe (Magnaprobe) collected during three snow field campaigns; 6 March–5 April 2018, 6 March–2 April 2019 and 14–21 March 2020 within the general wintering range of the Central Arctic caribou Herd (CAH). Measurement locations ranged across the Interior of Brooks Range, the northern foothills of the Brooks Range, North Slope, and Coastal Plain of Alaska. Spatiotemporally distributed daily modeled snow depth data 2001–2020 is produced using SnowModel (Liston and Elder 2006a, Liston et al. 2020) over the CAH home range and extracted in caribou Geographic Positioning System (GPS) locations (not public) and aggregated for caribou movement modeling and analyses. These data were collected and produced as a part of the National Science Foundation funded project "Nutritional Landscapes of Arctic Caribou: Observations, Experiments, and Models Provide Process-Level Understanding of Forage Traits and Trajectories" and used to investigate the impact of snow on caribou winter movement and winter range selection. These data sets were collected and produced for the research reported in the publication: Pedersen, S. H., Bentzen, T. W., Reinking, A. K., Liston, G. E., Elder, K., Lenart, E. A., Prichard, A. K., Welker, J. M. (2021): Quantifying effects of snow depth on caribou winter range selection and movement in Arctic Alaska. Movement Ecology. DOI: 10.1186/s40462-021-00276-4.

本数据集包含通过自动雪深探测仪（Magnaprobe）采集的分布式雪深数据，采集工作于三次野外积雪调查期间完成，分别为2018年3月6日至4月5日、2019年3月6日至4月2日、2020年3月14日至21日，采样区域覆盖中北极驯鹿群（Central Arctic Caribou Herd, CAH）的常规越冬栖息地。测量点位分布于阿拉斯加布鲁克斯岭内陆、布鲁克斯岭北麓、阿拉斯加北坡及沿海平原区域。本数据集同时包含2001-2020年的时空分布式逐日积雪模拟数据，该数据通过SnowModel（Liston与Elder, 2006a；Liston等, 2020）在CAH家域范围内生成，提取自驯鹿的全球定位系统（GPS）标记点位（未公开），经聚合处理后用于驯鹿移动建模与相关分析。本数据集的采集与构建作为美国国家科学基金会（National Science Foundation, NSF）资助项目「北极驯鹿营养景观：观测、实验与模型解析觅食特征与动态的过程机制（Nutritional Landscapes of Arctic Caribou: Observations, Experiments, and Models Provide Process-Level Understanding of Forage Traits and Trajectories）」的一部分完成，用于探究积雪对驯鹿冬季移动及越冬生境选择的影响。本数据集的采集与构建服务于下述已发表研究：Pedersen, S. H., Bentzen, T. W., Reinking, A. K., Liston, G. E., Elder, K., Lenart, E. A., Prichard, A. K., Welker, J. M. (2021): 《量化积雪深度对阿拉斯加北极地区驯鹿越冬生境选择与移动的影响》，刊载于《Movement Ecology》，DOI: 10.1186/s40462-021-00276-4。