Energy balance station

Measurement station for the near-surface energy balance
Energiebilanzstation Simone Scheer
Fig. 1: Energy balance station
Bodensensoren einer Energiebilanzstation. Anselm Erdmann
Fig. 2: Sensors for soil humidity and temperature during the installation. The hole has to be filled according to the soil layers.

The energy balance of the Earth's surface is a key parameter for exchange processes between the Earth's surface and the atmosphere. To capture its components and other meteorological variables, various devices are combined to form a measuring platform (Fig. 1). In addition to meteorological variables such as air temperature, air pressure, air humidity precipitation, wind speed and wind direction, these include long-wave and short-wave radiation flux densities, surface temperature, soil heat flux, soil moisture and soil temperature at four depths (Fig. 2). In addition, the station allows the determination of turbulent fluxes of momentum, sensible and latent heat.

 

Equipment of the energy balance station
Number of sensors Device Type Manufacturer Measured quantities Sensor height
1 Ultrasonic anemometer Windmaster Gill wind vector, temperature, momentum flux, sensible heat flux 4 m
1 Barometer 61402V Young air pressure 1 m
1 Pyranometer CM14 Kipp & Zonen global- and reflected shortwave radiation 3 m
1 Pyrgeometer CGR3 Kipp & Zonen longwave downwelling radiation, longwave upwelling radiation 3 m
3 Soil heat flux plates HFP01SC Hukseflux soil heat flux -0.05 m
1 Radiation thermometer KT15 Heimann surface near temperature  
1 Temperature and humidity sensor HMP35A / HMP155 Vaisala air temperature, relative humidity 3 m
1 Inclinometer

LEC 315-232

BWSENSING

elevation angle 4 m
1 Ombrometer 52202 Young precipitation 1 m
4 SISOMOP SMT100   soil temperature, soil humidity -0.05, -0.1, -0.2, -0.5 m
1 Humidity and carbon monoxide sensor Li-Cor 7500 LI-COR CO2 / H20, latent heat flux, CO2 flux 4 m