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Snow Cover Monitoring

Snow Cover Monitoring Service provides snow cover maps and snow parameters derived from the integration of multi-source spatial data at different resolutions. This service contributes to an efficient and sustainable use of the available water resources for power generation.


Very Hight Resolution Snow Cover Map

Medium Resolution Snow Cover Map 

Low Resolution Snow Cover Map

 

Snow Water Equivalent Monitoring service

The service provides the snow water equivalent on the basis of the snow cover area (derived from satellite images) and the ground measurements (provided by local snow stations). The estimation of the water volumes is required by the hydropower producers to estimate the potential power amount produced by the plants.

This service is currently available only for Canada and Austria.


Snow Water Equivalent

 

Land Displacement Monitoring service

This service is based on SAR interferometric processing techniques for the detection of landslides and dam motions.  These techniques measure the surface deformation with millimetric accuracy and can record also the evolution in time of the land diplacement.

The service contributes to the security of the dams providing a better understanding of landslide trigger mechanisms and of land motion activities.
 


Regional and local scale landslide mapping

Dam and embankment motion

 

Runoff Forecast service

The service provides short-term runoff forecasts in real time.

An automatic processing system carries out pre-processing of meteorological and hydrological data from different data sources, runoff calculation for 1 to 7 days in advance, quality checks of input data, production of model output, and generation of graphical products for the presentation of the results.

This Runoff Forecast service was carried out in spring 2006 in 4 Zillertal and 3 Ötztal basins, which are located in the Austrian Alps. The following products were generated for all basin gauges every day in the period 4 April -1 July 2006:


· Deterministic runoff forecasts based on MOS and ECMWF T799 predictions (numeric values and squirrel Plots);
· Comparison of measured and forecasted runoff (day 1 to 6; runoff deviation plots);
· Comparison of temperature forecasts of pre-processed MOS with measurements at stations (temperature deviation plots 1 to 6 days; squirrel plot);
· Comparison of precipitation forecasts of pre-processed ECMWF T799 grid values with measurements at stations (precipitation deviation plots 1 to 6 days; squirrel plot);
· Snow depletion curves (based on remote sensing data and temporal interpolation);
· Accumulated fresh snow (snow water equivalent);
· Uncertainty of temperature forecasts based on ECMWF EPS T399 grid points (EPS candle plots);
· Uncertainty of precipitation forecasts based on ECMWF EPS T399 grid points (EPS candle plots);
· Runoff ensemble predictions based on ECMWF EPS T399 forecasts (EPS candle plots, spaghetti plots).

 

Radar Altimeter service

The service provides water level measurements using the data acquired by the radar altimeter on-board ERS-1 and ERS-2. The measurements are compared with the “ground” recording station provided by Hydro-Québec.

This service is currently  availble for two test areas in Northern Québec.


Radar Altimeter service