Historia exitosa
How Satellite Earth Observation Can Help With Monitoring For The Water Framework Directive
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Perfil
Using knowledge about how certain substances, such as one of the main pigments of the phytoplankton (Chlorophyll a - Chl a) alter the colour of the water, these parameters can be derived from optial Earth Observation (EO) satellite sensors.
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Propuesta
Water Insight provides monitoring services of Chl a based on EO data which is validated with in situmeasurements. Also the maps of WFD phytoplankton biomass status classes are created, by application of the WFD tresholds on Chl a as a proxy for phytoplankton biomass. The maps are made available in a portal, which allows to follow the lakes in time, zoom and download maps and time series.
Beneficios
- cheap and automated monitoring for under-sampled lakes, combined with targeted sampling in case of unexpected changes
- systems analysis, for which the spatial component is key
- evaluation of the spatial effect of measures taken to improve water quality for the WFD as input for spatial ecological models
![Satellite-based EO maps confirm that Saadjärv is usually a lake with low Chl a concentrations over the whole surface (example from June 18th 2020). Still, sometimes slightly elevated concentrations of Chl a can be detected in a spatial pattern (example from 28th August 2016).](/documents/3207842/4198828/Picture+1-2.png/3d331b4d-98aa-3d36-168d-d21d12c54b88?t=1655477322551)