Volk J M, Huntington J L, Melton F, Minor B, Wang T, Anapalli S, Anderson R G, Evett S, French A, Jasoni R, Bambach N, Kustas W P, Alfieri J, Prueger J, Hipps L, McKee L, Castro S J, Alsina M M, McElrone A J, Reba M, Runkle B, Saber M, Sanchez C, Tajfar E, Allen R, Anderson M
Desert Research Institute, 2215 Raggio Pkwy, Reno, NV 89512 USA.
NASA Ames Research Center, Mail Stop 245-1, Moffett Field, CA 94035-1000 USA.
Data Brief. 2023 May 30;48:109274. doi: 10.1016/j.dib.2023.109274. eCollection 2023 Jun.
Large sample datasets of evapotranspiration (ET) measurements with well documented data provenance and quality assurance are critical for water management and many fields of earth science research. We present a post-processed ET oriented dataset at daily and monthly timesteps, from 161 stations, including 148 eddy covariance flux towers, that were chosen based on their data quality from nearly 350 stations across the contiguous United States. In addition to ET, the data includes energy and heat fluxes, meteorological measurements, and reference ET downloaded from gridMET for each flux station. Data processing techniques were conducted in a reproducible manner using open-source software. Most data initially came from the public AmeriFlux network, however, several different networks (e.g., the USDA-Agricultural Research Service) and university partners provided data that was not yet public. Initial half-hourly energy balance data were gap-filled and aggregated to daily frequency, and turbulent fluxes were corrected for energy balance closure error using the FLUXNET2015/ONEFlux energy balance ratio approach. Metadata, diagnostics of energy balance, and interactive graphs of time series data are included for each station. Although the dataset was developed primarily to benchmark satellite-based remote sensing ET models of the OpenET initiative, there are many other potential uses, such as validation for a range of regional hydrologic and atmospheric models.
具有详细记录的数据来源和质量保证的蒸散量（ET）测量大样本数据集对于水资源管理和许多地球科学研究领域至关重要。我们展示了一个经过后处理的以ET为导向的数据集，其时间步长为每日和每月，来自161个站点，包括148个涡度协方差通量塔，这些站点是根据其数据质量从美国本土近350个站点中挑选出来的。除了ET，数据还包括能量和热通量、气象测量数据，以及从gridMET下载的每个通量站点的参考ET。数据处理技术使用开源软件以可重复的方式进行。大多数数据最初来自公共的AmeriFlux网络，然而，几个不同的网络（如美国农业部农业研究局）和大学合作伙伴提供了尚未公开的数据。最初的半小时能量平衡数据进行了间隙填充并汇总为每日频率，使用FLUXNET2015/ONEFlux能量平衡比率方法对湍流通量进行了能量平衡闭合误差校正。每个站点都包含元数据、能量平衡诊断以及时间序列数据的交互式图表。尽管该数据集主要是为了对OpenET计划的基于卫星的遥感ET模型进行基准测试而开发的，但还有许多其他潜在用途，例如对一系列区域水文和大气模型进行验证。
