This data set is part of the CoastColour Round Robin data sets, Version 1, doi:10.1594/PANGAEA.841950Data provider:- CSIR: Council of Scientific & Industrial Research, South Africa- GKSS: Helmholtz Zentrum Geesthaacht, Germany- COAS_OSU: Oregon State University, USA- ITC: Faculty of Geo-Information Science and Earth Observation, University of Twente, The Netherlands- RBINS: Royal Belgian Institute for Natural Sciences, BelgiumSee "Further details: Figure A-1" for an overview of the distribution of the in situ data. The 17 CoastColour sites which are, numbered alphabetically, the coastal waters off: 1) Acadia; 2) Benguela; 3) Cape Verde; 4) Central California; 5) Chesapeake Bay; 6) the Eastern Mediterranean Sea (referred to hereafter by E. Md. Sea); 7) the East China Sea; 8) Florida; 9) the Great Barrier Reef region (hereafter GBR region); 10) Gulf of Mexico; 11) Indonesia ; 12) Morocco and western Mediterranean Sea (hereafter Morocco-W. Md. Sea); 13) the North Sea region extending to the English Channel, the Celtic and Irish Seas, the Bay of Biscay and Southern Brittany (all referred to as the North Sea); 14) Oregon-Washington; 15) Southern California; 16) Tasmania; and 17) Trinidad and Tobago.