MEASURING THE COLOUR OF WATER NOW IS SMART
Natural fresh and salt waters on our planet have many colours. Moreover, water colours change over time; in between seasons but also over longer time scales. With the release of the Eye-on-Water app you now can participate in measuring the colour of lakes, seas and oceans. A valuable add-on, designed the benefit of marine researchers by physical oceanographer Dr. Marcel Wernand of the Royal NIOZ.
The colour of natural water has been captured by ships since 1889 using the Forel-Ule scale. Also observation satellites and local measuring stations have enabled scientists to monitor vast sea areas.
Long term analysis of Forel-Ule data has shown that variations in the degree of colour change per region. With the new app the shifting algae concentrations in natural waters now can be measured regionally.
With this ‘zoom’-function the app Eye-on-water also adds another dimension to the Forel-Ule data: public science. Measurements made by citizens will validate satellite data.
The app will be used to develop a global database on water colour. Data will support long-term research in areas such as pollution and climatological change.
The app, originally designed for the EU-project ‘Citizens’ Observatory for Coast and Ocean Optical Monitoring’ (Citclops) by the Royal NIOZ, Marine Information Service (MARIS) and Veerder, has been presented during the STOWA Congress on the 20th of April, at Burgers Zoo in The Netherlands.
The app is available for Android and iPhone.