What is the problem?
The spatial distribution of algae and cyanobacteria blooms can vary significantly. However, standard in situ sampling are generally taken either in the middle of the lake or next to platforms or jetties although such locations may not be as representative of the whole water body. Bathing locations tend to be situated on shores with sandy beaches or closest to cities or access roads, often facing south for maximum sun exposure. However, from a health perspective the bathing areas should not be at locations where cyanobacterial scums occur frequently, since these may contain high concentrations of toxins.
How does the EOMORES services address it?
Satellite-based maps, incorporating large time series of data (years), indicate the average spatial distribution of parameters such as chlorophyll and cyanobacterial pigment over specific areas.
Patterns of distribution are determined through combined hydrodynamic-water quality models.
Such long-term spatial information can be used to determine locations representative for the water body as a whole in order to carry out in situ monitoring, as well as to identify the best spots for future bathing locations.
