Changing perspectives on water quality monitoring

The rising number of pollutants entering our waterways are challenging our ability to monitor and maintain essential supplies of clean water. Water management teams on the ground often cover large networks of freshwater lakes, rivers or streams stretching over vast landscapes or circumnavigating through remote or inaccessible locations. With these logistical hurdles in mind, there is a pressing demand for new technologies to support water management teams as they undertake one of the biggest challenges for modern society. The UNESCO and many other users believe the answers should also lie within the resources of satellite-based earth observation (EO).

Space-based monitoring

Water Quality Monitoring: Chlorophyll status indicating harmful algal bloom in Mecklenburg Lake Plateau

Today, numerous of vibrant images of the earth are captured daily using satellite-based technology. The exploitation of this potential requires a greater understanding of the colours that show the earth’s surface and what they mean for the health of ourmarine and freshwater systems.
The colour of light that is scattered back out of water can be measured from space and used to derive information about what is in the water column including turbidity, phytoplankton abundance, sediments and harmful algal blooms indicators. With the knowledge of these light characteristics, experts can obtain concentration levels of different water quality parameters which can then be used to employ effective management and mitigation practices.
Inland water bodies can undergo a range of natural changes over time, often exacerbated bynearby human activities such as agricultural run off. Yet any efforts to collect data on the ground are limited in both time and space. For this reason, satellite-based observations are important in providing a global view of the earth and monitoring how the patchwork of colours change over time.

Innovating water quality algorithms

The ability to observe water bodies from space has established earth observation (EO) as an important source of information on water quality and ecosystem condition. Earth observation based measurements are of significant value for the evaluation of water bodies, if the measurements can be provided independently to in-situ data and if globally harmonised.

You can read the high- resolution article here , page 54.

 

world map for unesco water quality portal

Latest EOMAP News

  • turbidity in Mekong deltaturbidity in Mekong delta
    Reuters bases Mekong article on EOMAP data
  • Eoapp Aqualite Yellowscan SddEoapp Aqualite Yellowscan Sdd
    YellowScan integrates EOMAP’s services into LiDAR mapping solution
  • Father and son dive into an alpine lake, a dog is nearby - Vater und Sohn hechten in einen Alpensee - Badegestellen via Satellit überwachen (c/ A. Schmoelzer)Father and son dive into an alpine lake, a dog is nearby - Vater und Sohn hechten in einen Alpensee - Badegestellen via Satellit überwachen (c/ A. Schmoelzer)
    So machen Tourismusregionen saubere Gewässer sichtbar
  • Badeverbot - Cyanobakterien Badesee in DeutschlandBadeverbot - Cyanobakterien Badesee in Deutschland
    Blaualgen per Satellit: Jede Badestelle im Blick
  • The Development of EOMAP’s Water Quality Platform
  • IIWQ World Water Quality PortalIIWQ World Water Quality Portal
    Launching the world’s first comprehensive global water quality atlas with UNESCO

Related Posts