CARVE: Net Ecosystem CO2 Exchange and Regional Carbon Budgets for Alaska, 2012-2014

This data set provides estimates of 3-hourly net ecosystem CO2 exchange (NEE) at 0.5-degree resolution over the state of Alaska for 2012-2014. The NEE estimates are the output are from Geostatistical Inverse Modeling of a subset of CARVE aircraft CO2 data, WRF-STILT footprints, and PVPRM-SIF data from flux towers (CRV: located in Fox, AK and BRW: located just outside Barrow, AK). Daily mean NEE is also provided as calculated for all of Alaska and for four sub-regions (0.5-degree resolution) that were defined across Alaska, based on general landcover type: North Slope Tundra, South and West Tundra, Boreal Forests, and Mixed (all other). Also provided are derived annual carbon budgets for (1) all of Alaska with defined contributions from biogenic, fossil fuel, and biomass burning sources and (2) annual biogenic carbon budgets for the four landcover-type regions of Alaska. Provided for completeness are the CARVE aircraft atmospheric measurement data used in estimating NEE.

本数据集提供了2012-2014年间阿拉斯加州0.5度分辨率下的3小时时程净生态系统CO2交换量（NEE）估算值。NEE估算值由对CARVE飞机CO2数据子集、WRF-STILT足迹以及来自通量塔的PVPRM-SIF数据（CRV位于阿拉斯加州福克斯市，BRW位于巴罗市郊外）进行的地理统计逆模型计算得出。同时，还提供了针对整个阿拉斯加州及其四大子区域（0.5度分辨率）的日平均NEE估算值，这些子区域根据阿拉斯加州的一般土地覆盖类型划分，包括北坡苔原、南北西苔原、北方森林和混合（其他所有类型）。此外，还提供了针对阿拉斯加州全部地区的年度碳收支估算，其中定义了生物源、化石燃料和生物质燃烧来源的贡献，以及针对阿拉斯加州四种土地覆盖类型的年度生物源碳收支估算。为完善数据集，还提供了用于估算NEE的CARVE飞机大气测量数据。