This dataset is made of twelve netCDF files corresponding to the twelve climatological months of marine optical data. Each file contains the following mapped variables:
- x coordinate of the CIE1931 color space
- y coordinate of the CIE1931 color space
- Hue angle
- Forel-Ule index
Source data for these files are the ESA-OC-CCI v2.0 climatological remote-sensing reflectance of global surface waters (1997-2013), mapped at a resolution of 0.25 degrees latitudinally and longitudinally. These source files can be retrieved at: ftp://oceancolour.org/occci-v2.0/geographic/netcdf/climatology/lower_resolution/0.25degree/
Files in this dataset have directly copied the latitude and longitude variables of the corresponding source files. Absence of data is coded as not-a-number. File name format is 'ESACCI-OC-L3S-OC_PRODUCTS-CLIMATOLOGY-16Y_MONTHLY_0.25degree_GEO_PML_OC4v6_QAA-mMM-fv2.0_xy_Hue_FU.nc', where MM stands for the month of the year, in two-digits format.