• Eye On Water
  • Citclops is supported by the EC-FP7 Programme, grant agreement nº 308469


Citizens’ Observatory for Coast and Ocean Optical Monitoring

Discover the different colours of the sea

The colour wheel contains different water colours. Click the parts to retrieve the assigned Forel-Ule numbers from different regions of the world. Explore the differences in water colour from the Wadden Sea to the Yellow Sea!

FU5 FU2 FU21 FU19 FU16 FU14 FU12 FU8

Images of water colour: Courtsey of J. de Jong, M. Wernand, O. Zielinski & J. A. Busch

Learn more about water colour here