Evapotranspiration


AMS tower located at the AMBHAS site

AMS tower located at the AMBHAS site

Evapotranspiration is estimated at AMBHAS site using the measurements from the 10 m tall micrometeorological tower (popularly called Agro-Met station and abbreviated as AMS) established by ISRO. The various instruments and the measured variables are as:

Observed parameterInstrumentHeight(s) of installation
Air temperaturePlatinum resistance thermometer2 m, 4 m and 6 m
Relative HumidityCapacitor Type2 m, 4 m and 6 m
Wind speed and wind directionCup Anemometer2.5 m, 5 m and 10 m
Atmospheric pressureTransducer2 m
RainfallTipping Bucket rain gauge1 m
Net radiationFour component net radiometer3 m
Diffuse radiationShaded pyranometer3 m
Soil heat fluxFlux plate-0.05 m, -0.2 m
Soil temperatureSoil Thermometer-0.05 m, -0.15 m and -0.3 m