Cyanobacteria from space
Cyanobacteria occurrences are more and more frequent in many water bodies around the world. Due to their potential harmfulness, the detection and monitoring of cyanobacteria blooms are especially relevant for freshwater bodies where communities develop recreational activities as well as for government instances that assess and monitor water quality for reporting purposes. Assessing cyanobacteria from space can be difficult, as sensors need to measure at a specific wavelength (625 nm) to catch the phycocyanin absorption peak that differentiates cyanobacteria from other algae. The European Sentinel-3 OLCI sensor is one such sensor that can observe this special spectral and is thus a valuable tool in helping detect cyanobacteria blooms from space.
Providing in near real time its users with water quality information
During the H2020 CyanoAlert project (2016-2020), Brockmann Consult GmbH together with our sister companies Brockmann Geomatics and Odermatt & Brockmann developed a warning system for Cyanobacteria occurrences. Once the project ended, the CyanoAlert Service started and is now being offered to our users and customers.
The CyanoAlert service consists of several elements that help users receive data, as well as visualise and analyse different water quality parameters in their lakes of interest. The service offers a (1) viewer, (2) a mobile app and (3) a warning service tailored to the needs of each customer. During the development of the service – within the CyanoAlert project – we developed and validated existing and new algorithms to assess water quality, amongst which chlorophyll concentration and cyanobacteria occurrences.