Institute of Geo-Hydroinformatics

Institute of River and Coastal Engineering

Institute of Mechatronics in Mechanical Engineering

Institute of Digital and Autonomous Construction

The LI-710 Evapotranspiration Sensor measures the total transport of water from evaporation and transpiration over an area using automated eddy covariance flux calculations. The output from the LI-710 is evapotranspiration, energy flux, and other parameters in 30-minute increments. It uses the SDI-12 protocol to transfer data to an external data recorder.

The LI-710 uses eddy covariance calculations that are optimized for the hardware and sensor configuration. It combines vertical wind speed measurements with high-precision relative humidity measurements to compute evapotranspiration from the area surrounding the sensor. When the prevailing wind directions around the LI-710 are random or uniform, measurements represent the surrounding area and vegetation (known as the “fetch footprint”). When wind is from a prevailing direction, measurements represent the land area and vegetation under the prevailing winds. The fetch footprint encompasses an area around the LI-710 that is 50 to 100 times the height of the sensor (e.g., a 2-meter height above the canopy has a fetch footprint of 100 to 200 meters).

The IoE Module is a on-site device that transfers the sensor’s data to LI-COR Cloud, where it can be accessed anytime, anywhere.

The Syscal Junior is an all-purpose resistivity and induced polarization sounding and profiling system for environmental applications. The system is supplied as a standard sounding system capable of recording two measurements simultaneously, perfect for performing offset Wenner sounding arrays. The output current is automatically adjusted (automatic ranging) to optimize the input voltage values and to ensure the best measurement quality.

The ku-pF MP10 is a laboratory instrument for the automatic determination of unsaturated hydraulic conductivity ku and the pf curve (water tension curve) in accordance with the evaporation method on up to 10 soil ring samples simultaneously. The ku-pf apparatus works independently of a PC due to the integrated data logger and a microcomputer. A connection must be created to the PC only for maintenance, test start and reading out of the data. The ku-pF apparatus is available as a single measurement station ku-pF SP.

The Permeameter is an laboratory instrument for determining the hydraulic conductivity of undisturbed water-saturated soil samples according.

The ATMOS 41W remote weather station measures 10 environmental variables, including solar radiation, precipitation, air temperature (min, max, average), barometric pressure, vapor pressure, relative humidity, wind speed, wind direction, maximum wind gust, and precipitation EC.

The A700 Science Kit offers researchers and engineers a streamlined solution for accurate temperature measurement. Simplified yet robust connections help you set up and start testing quickly; then easily view, acquire, and analyze data using included FLIR Research Studio software.

Four-component measurement of net radiation with black-body pyranometers and pyrgeometers pairs.

Net radiation is a key variable in surface energy balance and influences turbulent fluxes, including evapotranspiration. Applications of the net radiometers also include measurements taken on flux towers and weather stations.

The four-component net radiometer consists of blackbody pyranometer and pyrgeometer pairs that face both upwards and downwards to provide incoming and outgoing shortwave and longwave radiation measurements. Each individual sensor measures the four separate components of net radiation for best accuracy.

Each of the four sensors includes a 0.2 W heater that keeps water (liquid and frozen) off the sensors. This minimizes errors caused when dew, frost, rain, or snow block the radiation path. Heaters can be turned off through SDI-12 commands to save power when they are not needed.