| SOUTHERN OSCILLATION | OLR INDEX | EQUATORIAL ZONAL WIND INDEX | Summer Asian Monsoon OLR Index |
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MONTH | SOI | DARWIN | TAHITI | OLR-PH | OLR-MC | OLR-DL | U200-IN | U200-CP | U850-WP | U850-CP | U850-EP | Activity | N-shift | W-shift |
| Dec 2020 | 1.5 | -0.7 | 2.5 | 1.0 | 0.8 | -1.1 | -1.1 | 1.4 | -1.2 | -1.3 | 1.6 | /// | /// | /// |
| Jan 2021 | 1.4 | -0.9 | 2.4 | 0.8 | 1.3 | -1.5 | -2.1 | 2.2 | -1.9 | -0.7 | 2.8 | /// | /// | /// |
| Feb 2021 | 1.1 | -1.7 | 0.7 | 0.9 | 0.7 | -0.7 | -0.3 | 1.1 | -0.6 | -1.0 | 0.0 | /// | /// | /// |
| Mar 2021 | 0.1 | -0.1 | 0.2 | 0.2 | 0.7 | -1.0 | -1.1 | 0.5 | -1.0 | -0.5 | -0.4 | /// | /// | /// |
| Apr 2021 | 0.4 | -0.3 | 0.3 | 0.9 | -0.2 | 0.3 | 0.0 | 1.2 | -0.2 | -1.3 | -0.5 | /// | /// | /// |
| May 2021 | 0.8 | -0.3 | 0.5 | -1.2 | 1.3 | 0.1 | 0.9 | 1.8 | -1.5 | -2.7 | -1.8 | -0.3 | -1.7 | 0.7 |
| Jun 2021 | 0.8 | 0.2 | 0.9 | 0.3 | -0.3 | -0.9 | -0.8 | 0.0 | -0.2 | 0.4 | 0.4 | -0.6 | 2.1 | -0.5 |
| Jul 2021 | 2.1 | -1.1 | 1.3 | 0.8 | 1.0 | -0.2 | -1.1 | 1.0 | -1.2 | -1.5 | -1.3 | 0.1 | -0.1 | -1.2 |
| Aug 2021 | 0.9 | -0.2 | 1.0 | -0.7 | 1.4 | -1.3 | -0.2 | -0.6 | -0.4 | 0.3 | 1.0 | -0.5 | -1.2 | 0.9 |
| Sep 2021 | 0.8 | -0.3 | 1.1 | -0.4 | 2.0 | -0.9 | -1.2 | 1.2 | -1.6 | -1.8 | -0.7 | 0.7 | -0.4 | 1.3 |
| Oct 2021 | 0.8 | -1.3 | 0.2 | 1.1 | 0.5 | -1.1 | -1.5 | 0.0 | -0.9 | -0.9 | -0.2 | 1.1 | 0.5 | -0.2 |
| Nov 2021 | 1.3 | -0.7 | 1.0 | 0.2 | 0.9 | -1.1 | -2.9 | 1.1 | -1.8 | -1.2 | -0.7 | /// | /// | /// |
| Dec 2021 | 1.2 | -0.7 | 1.8 | 0.7 | 1.6 | -0.7 | 0.6 | 2.4 | -0.3 | -1.4 | -1.3 | /// | /// | /// |
| DEFINITION, LOCATION, AREA |
TAHITI - DARWIN |
12.5ºS 131ºE |
17.5ºS 150ºW |
20-10ºN 110-140ºE |
5ºN-5ºS 110-135ºE |
5ºN-5ºS 170ºE-170ºW |
5ºN-5ºS 80-100ºE |
5ºN-5ºS 180-125ºW |
5ºN-5ºS 160ºE-175ºW |
5ºN-5ºS 170ºW-135ºW |
5ºN-5ºS 130-100ºW |
SAMOI (A) | SAMOI (N) | SAMOI (W) |
| SEA SURFACE TEMPERATURE and ANOMALY(ºC) | ||||||||||||||
| MONTH | IOBW | NINO.WEST | NINO.4 | NINO.3 | NINO.1+2 | |||||||||
| Dec 2020 | 28.27 | 0.26 | 29.83 | 0.66 | 27.5 | -1.1 | 24.3 | -0.9 | 22.1 | -0.8 | ||||
| Jan 2021 | 27.97 | 0.03 | 29.22 | 0.57 | 27.1 | -1.2 | 25.1 | -0.6 | 24.0 | -0.6 | ||||
| Feb 2021 | 28.27 | 0.11 | 28.99 | 0.57 | 27.1 | -1.1 | 26.0 | -0.4 | 25.6 | -0.6 | ||||
| Mar 2021 | 28.85 | 0.12 | 29.07 | 0.52 | 27.8 | -0.5 | 26.7 | -0.5 | 26.5 | -0.2 | ||||
| Apr 2021 | 29.19 | -0.05 | 29.42 | 0.44 | 28.3 | -0.4 | 26.8 | -0.8 | 24.4 | -1.3 | ||||
| May 2021 | 29.00 | -0.03 | 29.50 | 0.03 | 28.7 | -0.3 | 26.7 | -0.5 | 23.5 | -1.0 | ||||
| Jun 2021 | 28.03 | -0.12 | 29.83 | 0.16 | 28.8 | -0.2 | 26.6 | 0.0 | 22.7 | -0.5 | ||||
| Jul 2021 | 27.42 | 0.05 | 29.70 | 0.15 | 28.7 | -0.3 | 25.6 | -0.2 | 21.5 | -0.4 | ||||
| Aug 2021 | 27.18 | 0.15 | 29.99 | 0.55 | 28.7 | -0.1 | 24.8 | -0.3 | 20.3 | -0.5 | ||||
| Sep 2021 | 27.42 | 0.22 | 30.14 | 0.57 | 28.3 | -0.5 | 24.3 | -0.6 | 19.2 | -1.4 | ||||
| Oct 2021 | 27.78 | 0.10 | 30.11 | 0.47 | 28.0 | -0.8 | 24.2 | -0.8 | 20.4 | -0.6 | ||||
| Nov 2021 | 28.08 | 0.09 | 30.08 | 0.54 | 28.1 | -0.7 | 24.2 | -0.9 | 20.8 | -0.9 | ||||
| Dec 2021 | 28.23 | 0.22 | 29.57 | 0.40 | 27.7 | -0.9 | 23.9 | -1.3 | 21.5 | -1.4 | ||||
| DEFINITON, LOCATION, AREA |
20ºN-20ºS 40-100ºE |
15ºN-EQ 130-150ºE |
5ºN-5ºS 160ºE-150ºW |
5ºN-5ºS 150-90ºW |
EQ-10ºS 90-80ºW |
|||||||||