Meteorological data, soil temperature and soil water content for Wendhausen Agroforestry from 2016 to 2017

The data set was provided by the responsible parties of the SIGNAL sub project “Evaporation and transpiration of agroforestry”. The main goal of the sub project was to investigate the effect of agroforestry on evapotranspiration on a system scale. We applied the so called surface energy balance method to calculate half hourly evapotranspiration rates. For that, half hourly evapotranspiration rates were calculated as a residual of the net radiation, the sensible heat flux and the ground heat flux. Besides the latter energy balance components, also standard meteorological data, such as global radiation, air temperature, relative humidity, wind speed and -direction, air pressure and precipitation were continuously measured since March 2016. All instruments were installed at a 10 m tall weather mast and the data were automatically collected. The weather mast was installed directly at the agroforestry plot of Wendhausen. The agroforestry system in Wendhausen is of a crop land alley cropping type, where poplar tree strips and crop land alternate. The current data set contains standard meteorological data, the soil temperature and -water content.

本数据集由SIGNAL子项目“农林业蒸发与蒸腾（Evaporation and transpiration of agroforestry）”的负责方提供。该子项目的核心目标为在系统尺度下探究农林业对蒸散发的影响。本研究采用所谓的地表能量平衡法计算逐半小时尺度的蒸散发速率：具体而言，逐半小时蒸散发速率通过净辐射、显热通量与土壤热通量的余项推导得到。除上述三类能量平衡组分外，研究团队自2016年3月起持续采集标准气象数据，包括总辐射、气温、相对湿度、风速及风向、气压与降水量。所有观测仪器均安装于10米高的气象塔上，数据采用自动采集方式。该气象塔直接架设于文德豪森（Wendhausen）的农林业试验地块内。文德豪森的农林业系统为农田条带间作模式，即杨树条带与农田交替分布。本数据集包含标准气象数据、土壤温度与土壤含水量。