'''This product has been archived'''

For operationnal and online products, please visit https://marine.copernicus.eu

'''Short description:'''

The Global Ocean Satellite monitoring and marine ecosystem study group (GOS) of the Italian National Research Council (CNR), in Rome operationally produces surface chlorophyll of the European region by merging the daily chlorophyll regional products over the Atlantic Ocean, the Baltic Sea, the Black Sea, and the Mediterranean Sea. Single chlorophyll daily images are the Case I – Case II products, which are produced accounting for bio-optical differences in these two water types. The mosaic is built using the following datasets:

• dataset-oc-atl-chl-multi_cci-l3-chl_1km_daily-rt-v01 for the North Atlantic Ocean

• dataset-oc-bal-chl-modis_a-l3-nn_1km_daily-rt-v01 for the Baltic Sea

• dataset-oc-bs-chl-multi-l3-chl_1km_daily-rt-v02 for the Black Sea

• dataset-oc-med-chl-multi-l3-chl_1km_daily-rt-v02 for the Mediterranean Sea.

'''Processing information:'''

All details about the processing can be found in relevant product description:

*OCEANCOLOUR_ATL_CHL_L3_NRT_OBSERVATIONS_009_036

*OCEANCOLOUR_BAL_CHL_L3_NRT_OBSERVATIONS_009_049

*OCEANCOLOUR_BS_CHL_L3_NRT_OBSERVATIONS_009_044

*OCEANCOLOUR_MED_CHL_L3_NRT_OBSERVATIONS_009_040

'''Description of observation methods/instruments:'''

Ocean colour technique exploits the emerging electromagnetic radiation from the sea surface in different wavelengths. The spectral variability of this signal defines the so-called ocean colour which is affected by the presence of phytoplankton.

'''Quality / Accuracy / Calibration information:'''

A detailed description of the calibration and validation activities performed over this product can be found on the CMEMS web portal.

'''Suitability, Expected type of users / uses:'''

This product is meant for use for educational purposes and for the managing of the marine safety, marine resources, marine and coastal environment and for climate and seasonal studies.

'''Dataset names:'''

*dataset-oc-eur-chl-multi-l3-chl_1km_daily-rt-v02

'''DOI (product) :'''

https://doi.org/10.48670/moi-00095