Ocean Colour Near Real-Time monitoring service in the Gulf of Cadiz

Daily sea surface level-3 and level-4 high-resolution data (300m and 1km) derived from multiple sensors, including the Ocean and Land Colour Instrument (OLCI) onboard the Sentinel-3A and Sentinel-3B twin satellites of the European Commission’s Copernicus program and EUMETSAT.

The ocean colour products correspond to:

• Sea Surface Temperature (SST) daily gap-free (L4) map interpolated from high (HR 0.0625°) and ultra-high (UHR 0.01°) spatial resolution data over the Southern European Seas. Based on the night-time images collected by the infrared sensors mounted on different satellite platforms (AATSR, SEVIRI, AVHRR, MODIS, VIIRS, SLSTR)
  
  • Buongiorno Nardelli B., C.Tronconi, A. Pisano, R.Santoleri, 2013: High and Ultra-High resolution processing of satellite Sea Surface Temperature data over Southern European Seas in the framework of MyOcean project, Rem. Sens. Env., 129, 1-16, doi:10.1016/j.rse.2012.10.012.
  • https://resources.marine.copernicus.eu/product-download/SST_MED_SST_L4_NRT_OBSERVATIONS_010_004

• Surface Chlorophyll-a (mg/m³) computed daily and based on a space-time interpolation: the Cloud Free' (L4). This product is based on the merging of the sensors SeaWiFS, MODIS, MERIS, VIIRS-SNPP&JPSS1, OLCI-S3A&S3B. Obtained using the Copernicus-GlobColour processor.
  
  • ACRI-ST company (Sophia Antipolis, France).
  • https://resources.marine.copernicus.eu/product-download/OCEANCOLOUR_ATL_CHL_L4_NRT_OBSERVATIONS_009_037

• The volume absorption coefficient of radiative flux in sea water due to dissolved organic matter and non-algal particles (ADG) is derived from the CCI multiple-sensor product and is remapped at nominal 1 km spatial resolution using cylindrical equirectangular projection. ADG is described in the PML Inherent Optical Property model (Smyth, T.J., Moore, G.F., Hirata, T. Aiken, J., 2006), a semi-analytic model for the derivation of ocean color inherent optical properties.
• Inorganic Suspended Particulate Matter (SPM) is derived from the CCI multiple-sensor product and is remapped at nominal 1 km spatial resolution using cylindrical equirectangular projection. SPM is defined as all inorganic matter that stays on a glass fiber filter with an approximate pore size of 0.7 micrometers.
  • McClain, C. R., Arrigo, K. R., Esaias, W., Darzi, M., Patt, F. S., Evans, R. H., et al.(1995). SeaWiFS Algorithms, Part 1. NASA Tech. Memo. 104566, Vol. 28 Greenbelt, Maryland: NASA Goddard Space Flight Center.
  • Smyth, T.J., Moore, G.F., Hirata, T. Aiken, J. (2006) PML Inherent Optical Property model. Semianalytical model for the derivation of ocean color inherent optical properties: description, implementation, and performance assessment. Applied Optics, 45(31), 8116-8131.
  • https://resources.marine.copernicus.eu/product-detail/OCEANCOLOUR_ATL_OPTICS_L3_NRT_OBSERVATIONS_009_034/

This service has been developed under the frame of the Sen2Coast (RTI2018-098784-J-100) and Sat4Algae (PY20_00244).