Soil Water Percolation Flux, April 2017 to March 2019, BR-Ma2, Manaus

Soil water percolation flux measurements derived from six passive wick flux meters across three topographic positions (valley, slope and plateau). Data has been processed to compute the mean for each topographic position where two flux meters were installed at each topographic position. Missing data represented a few percent of the total data set and were filled using two approaches. In the event one of the flux meters malfunctioned, we used data from the other sensor from the same topographic position without averaging. When both sensors were not working, such as during the period from September to October 2017 for the slope and valley and July 2018 for the plateau, data was filled using a nonlinear regression model that was based on local precipitation data and coefficients that were empirically derived for each topographic position. The metadata tab included in the .csv has additional information on locations where the sensors were installed, and other installation/maintenance details. Contact [e-mail] if you need to use this dataset for additional information.

本数据集涵盖基于6台无源芯式通量计（passive wick flux meters）在三类地形位置（谷地、坡地与台地）获取的土壤水渗流通量实测数据。每个地形位置布设2台通量计，已完成数据处理以计算各地形位置的均值。总数据集中存在占比约百分之几的缺失值，采用两种方案进行补全：若单台通量计发生故障，则直接使用同一地形位置内另一台传感器的观测数据，无需进行平均处理；当两台传感器均失效时，例如2017年9月至10月的坡地与谷地数据集、2018年7月的台地数据集，则采用基于局地降水数据与各地形位置经验推导系数构建的非线性回归模型完成数据补全。附带的.csv文件内置元数据标签页，包含传感器安装位置及其他安装、维护相关的补充细节。如需使用本数据集并获取更多信息，请联系邮箱[e-mail]。