OISSTOptimum Interpolation Sea Surface Temperature
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Caption: Figure 12: (a) Spatial distribution of OISST averaged over the period of 2000-2014.
The authors thank NOAA for providing the OISST data, ECMWF for providing the ERA-Interim reanalysis data, and the University of East Anglia Climatic Research Unit for the data used in this study.
NCEP/NCARreanalysis and ANA (Brazilian National Agency of Water Resources) and OISST analysis version 2 AVHRRAMSR (Advanced Very High Resolution Radiometer-Advanced Microwave Scanning Radiometer) products from NCDC (National Climate Data Center) are provided by NOAA (available online), USA.
Time series of daily OISST anomalies during El Nino events show statistically significant warming trends of +0.596[degrees] (0.166[degrees]C decade-1) and +0.352[degrees] (0.098[degrees]C decade-1) over 36 years in the ROI and at Jarvis Island, respectively (Figs.
(left) Seasonal-mean Nino-3.4 index (area-averaged SST anomaly in 5[degrees]S-5[degrees]N, 170[degrees]-120[degrees]W), as observed (OISST analysis; black) and predicted by CHFP models (red) initialized from February, May, August, and November 1982-2009 at (a) 0-, (b) 3-, and (c) 6-month lead times.
In general, the prevailing trend is toward the development of higher-resolution products, so daily OISST was selected herein as the basis for model verification.
The CDRP identified the OISST CDR as the candidate to undergo software analysis and transition to full operations.
To provide a historical perspective for regional and global yearly mean SSTA in 2015, three historical analyses (ERSST.v4, ERSST.v3b, and HadISST) are compared from 1950 to 2015 and one modern analysis (OISST) from 1982 to 2015 (Fig.
4.2, 4.3) is shown based on OISST data (Smith and Reynolds 1998).
To estimate uncertainties in SST variations, three SST products are analyzed: (1) the weekly Optimal Interpolation SST version 2 (OISST; Reynolds et al.
For sea ice concentrations greater than 50%, the NOAA OISST product uses a linear relationship with sea ice concentration to infer SST, with SST constrained to -1.8[degrees]C (the freezing point of seawater with a salinity of 33 at the sea surface) where ice cover is 100% (Reynolds et al.