C-GLORS v7 monthly means have been released for the period 1990-2016.
C-GLORSv7 features an increased vertical resolution (75 depth levels),
an upgraded ocean model version (NEMO-LIM2 3.6) and
improved observational quality control (VarQC).
The dataset is realeased along with analysis and bias correction increments,
the corresponding control run (assimilation-free) and ancillary files.
Data are provided over the native grid (ORCA025),
together with geometrical parameters and tools for interpolation
onto regular grids.
The CMCC Global Ocean Physical Reanalysis System (C-GLORS) is used at CMCC to simulate the state of the ocean in the last decades. It consists of a variational data assimilation system (OceanVar), capable of assimilating all in-situ observations along with altimetry data, and a forecast step performed by the ocean model NEMO coupled with the LIM2 sea-ice model.
There are two versions of C-GLORS
currently released (v5 and the latest v7)
that are run at eddy permitting resolution (about 1/4 degree of horizontal resolution) and
covering the meteorological satellite era,
plus historical reanalyses performed at 1/2 degree of resolution,
covering the entire XX century and referred to as
(CMCC Historical Ocean Reanalysis).
CHOR monthly means have been released for the period 1900-2010
from an ensemble of four
historical reanalyses that combine two atmospheric forcing
(NOAA/CIRES 20CRv2 and ECMWF ERA-20C) with two strategies for
assimilating sea surface temperature data (assimilation and nudging),
all containing subsurface data assimilation.
Picture representing the Seasonal Ocean Heat Content
Anomaly Evolution (1980-2015),
with seasonal cycle removed, as simulated by C-GLORSv5