Soil Organic Carbon Degradation during Incubation, Utqiagvik (Barrow), Alaska, 2012

This dataset provides information about soil organic carbon decomposition in Barrow soil incubation studies. The soil cores were collected from low-center polygon (Area A) and were incubated in the laboratory at different temperatures for up to 60 days. Transformations of soil organic carbon were characterized by UV and FT-IR, and small organic acids in water-soluble carbons were quantified by ion chromatography during the incubation (Herndon et al., 2015). This dataset includes one pdf file and four csv files. 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).

本数据集涵盖巴罗（Barrow）土壤培养实验中土壤有机碳分解的相关信息。实验所用土壤柱样采自低中心多边形地貌区（low-center polygon，A区），并于实验室中在不同温度条件下培养长达60天。培养过程中，通过紫外光谱（UV）与傅里叶变换红外光谱（FT-IR）表征土壤有机碳的转化过程，并采用离子色谱法定量水溶性碳中的小分子有机酸（Herndon等，2015）。本数据集包含1个PDF文件与4个逗号分隔值（CSV）文件。
下一代北极生态实验（Next-Generation Ecosystem Experiments: Arctic, NGEE Arctic）是一项研究项目，旨在通过深化对碳富集型北极生态系统及其气候反馈机制的预测性认知，降低地球系统模型的不确定性。该项目由美国能源部生物与环境研究办公室资助。
NGEE Arctic项目设有两个野外研究站点：1）位于阿拉斯加州乌特恰维克（原巴罗，Utqiagvik (Barrow)）附近北坡的巴罗环境观测站（Barrow Environmental Observatory, BEO）内的北极多边形苔原沿海区域；2）阿拉斯加州诺姆以北苏华德半岛的不连续永久冻土区的多个区域。
通过观测、实验以及与现有数据集的综合分析，NGEE Arctic项目为多尺度建模提供了更完善的知识库，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, E3SM），尤其是其陆面模型组件（ELM），在全球泛北极尺度上提升了过程表征能力。