Radiocarbon in CO2 and Soil Organic Matter from Laboratory Incubations, Utqiagvik (Barrow), Alaska, 2012

Dataset includes one CSV data file of Delta14C measurements made from soil organic matter and CO2 from laboratory soil incubations of active layer soils collected in Utqiagvik (Barrow), Alaska in 2012. In addition to Delta14CO2, the dataset includes CO2 production rates and carbon and nitrogen concentrations. Samples were collected from intensive study site 1 areas A, B, and C, and the site 0 and AB transects, from specified positions in high-centered, flat-centered, and low centered polygons. The Next-Generation Ecosystem Experiments: Arctic (NGEE Arctic), was a 10-year research effort (2012-2022) 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).本数据集包含一份CSV数据文件，收录了2012年在阿拉斯加州乌特恰维克（旧称巴罗）采集的北极活动层土壤实验室培养实验中，土壤有机质与二氧化碳的Δ¹⁴C（Delta14C）测量值。除Δ¹⁴CO₂（Delta14CO2）外，数据集还涵盖二氧化碳产生速率以及碳、氮浓度相关数据。 样本采集自强化研究区1的A、B、C三个区域，以及0号样区和AB样带，采样点位均选自高中心、平中心与低中心多边形地貌的指定位置。 下一代北极生态系统实验（Next-Generation Ecosystem Experiments: Arctic, NGEE Arctic）是一项为期10年（2012-2022年）的研究计划，旨在通过深化对富碳北极生态系统的预测性认知及其与气候的反馈机制，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设有两个野外研究站点：其一位于阿拉斯加州乌特恰维克（巴罗）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；其二地处阿拉斯加州诺姆以北苏华德半岛的不连续永久冻土区域，包含多个地块。 通过观测、实验以及与现有数据集的综合分析，NGEE Arctic为多尺度建模提供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, E3SM），特别是其陆面模型组件（ELM，E3SM Land Model），在全球泛北极尺度上优化了过程表征能力。