Sorry for the delay, but NOMADS was off line for a few days early in the week and I got sidetracked with a few other posts.
I’ve elected to eliminate the Southern Oscillation Index (SOI) updates. At times, NINO3.4 SST anomalies don’t follow the SOI precisely, so the SOI can be misleading with respect to the overall direction of NINO3.4 SST. In its place, I’ve added the weekly Optimally Interpolated Sea Surface Temperature (OI.v2 SST) data for the NINO3.4 region.
NINO3.4 SST ANOMALIES BASED ON WEEKLY OI.v2 SST DATA
NINO3.4 SST Anomaly (OI.v2 SST)
MONTHLY ERSST.v2 UPDATES
NINO3.4 SST Anomaly – Monthly Change = +0.187 deg C
Global SST – Monthly Change = +0.056 deg C
Northern Hemisphere – Monthly Change = +0.099 deg C
Southern Hemisphere – Monthly Change = +0.022 deg C
North Atlantic (0 to 75N, 78W to 10E) – Monthly Change = -0.038 deg C
South Atlantic (0 to 60S, 70W to 20E) – Monthly Change = +0.030 deg C
North Pacific (0 to 65N, 90 to 180W) & (0 to 65N, 100 to 180E) –
Monthly Change = +0.145 deg C
South Pacific (0 to 60S, 70 to 180W) & (0 to 60S, 145 to 180E) –
Monthly Change = +0.061 deg C
Indian Ocean (30N to 60S, 20 to 145E) – Monthly Change = +0.010 deg C
Arctic Ocean (65 to 90N) – Monthly Change = +0.302 deg C
Southern Ocean (60 to 90S) – Monthly Change = +0.047 deg C
Smith and Reynolds Extended Reconstructed SST Sea Surface Temperature Data (ERSST.v2) and the Optimally Interpolated Sea Surface Temperature Data (OISST) are available through the NOAA National Operational Model Archive & Distribution System (NOMADS).