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Water Balance Parameters
The Water Balance and Runoff Model PROMET (Process of Radiation Mass and Energy Transfer)
PROMET is a physically based model which simulates the components of the water and energy balance for the main layers soil, vegetation and atmosphere and which can be fitted to every watershed on the globe. It was developed at the LMU München at the Department of Geography. The component for channel modelling was provided by VISTA (Mauser & Bach 2009).
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Features:
Model parameter from remote sensing:
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Process modelling in PROMET
With the help of PROMET many different hydrological questions can be answered, e.g.:
Runoff forecast
Calculation of the snow water equivalent
Soil moisture simulation
Runoff forecast
For flood forecasting, not only the analyses from Snow sensing are used, but also runoff forecasts for the Upper Danube watershed are calculated at VISTA using the water balance and runoff model PROMET.
Runoff formation in the Upper Danube and its tributaries and the resulting runoff graph
Long time validation of the model with measured runoff for the gauge Achleiten.
The modelling
from
1971 to 2000 shows just +1.7% difference to the measured runoff (Source: LMU Munich)
Simulation of the snow water equivalent
The combination of observation from satellite data and modelling of the snow cover with PROMET provides at every point in time for every location in the investigation area the extent and volume of water stored in the snow.
From satellite data to snow water equivalent
Snow cover as seen in Earth Observation data (left), derived snow cover map (middle),
and modelled snow water equivalent (right) fort he watershed of the Upper Danube.