Soil Physical, Chemical, and Thermal Characterization, Teller Road Site, Seward Peninsula, Alaska, 2016

This dataset provides the results of physical, chemical, and thermal characterization of soils at the Teller Road Site, Seward Peninsula, Alaska. Soil pits were dug from 7-14 September 2016 at designated Intensive Stations 2 through 9 at the Teller Road MM 27 Site. This dataset includes field observations and descriptions of soil layers or horizons, field measurements of soil volumetric water content, soil temperature, thermal conductivity, and heat capacity. Laboratory measurements of soil properties include gravimetric water content, bulk density, volumetric water content, and total carbon and nitrogen. The data files are CSV with additional information in a PDF user guide. Soil pit JPG images are in a zip file. The Next-Generation Ecosystem Experiments: Arctic (NGEE Arctic), was a research effort to reduce uncertainty in Earth System Models by developing a predictive understanding of carbon-rich Arctic ecosystems and feedbacks to climate. NGEE Arctic was supported by the Department of Energy's Office of Biological and Environmental Research. The NGEE Arctic project had two field research sites: 1) located within the Arctic polygonal tundra coastal region on the Barrow Environmental Observatory (BEO) and the North Slope near Utqiagvik (Barrow), Alaska and 2) multiple areas on the discontinuous permafrost region of the Seward Peninsula north of Nome, Alaska. Through observations, experiments, and synthesis with existing datasets, NGEE Arctic provided an enhanced knowledge base for multi-scale modeling and contributed to improved process representation at global pan-Arctic scales within the Department of Energy's Earth system Model (the Energy Exascale Earth System Model, or E3SM), and specifically within the E3SM Land Model component (ELM).

本数据集提供了阿拉斯加苏厄德半岛（Seward Peninsula）特勒路场地（Teller Road Site）的土壤物理、化学与热特性表征结果。2016年9月7日至14日，研究人员在特勒路MM27场地指定的2至9号密集监测站开挖土壤剖面坑。本数据集包含土壤层位或土壤发生层（horizons）的野外观测与描述、土壤体积含水量、土壤温度、热导率与热容量的野外原位测量数据。土壤属性的实验室测量数据包括重量含水量、容重、体积含水量以及总碳与总氮含量。数据集文件格式为逗号分隔值（CSV）格式，另附PDF格式用户指南补充相关信息；土壤剖面实拍JPG图像打包于ZIP压缩文件中。下一代生态系统实验：北极（Next-Generation Ecosystem Experiments: Arctic, 简称NGEE Arctic）是一项旨在通过构建富碳北极生态系统的预测性认知及其对气候的反馈机制，以降低地球系统模型不确定性的研究项目。NGEE Arctic由美国能源部生物与环境研究办公室（Department of Energy's Office of Biological and Environmental Research）资助。该项目设有两处野外研究场地：1）位于阿拉斯加乌特恰维克（原巴罗，Utqiagvik (Barrow)）附近北坡的巴罗环境观测站（Barrow Environmental Observatory, 简称BEO）内的北极多边形苔原沿海区域；2）位于阿拉斯加诺姆以北苏厄德半岛的不连续永久冻土区域的多处场地。通过实地观测、控制实验与现有数据集的综合分析，NGEE Arctic项目为多尺度建模构建了更为完善的知识库，并助力美国能源部地球系统模型——能源极端尺度地球系统模型（Energy Exascale Earth System Model, 简称E3SM），尤其是其陆面模型模块（ELM）在全球泛北极尺度下的过程表征精度提升。