History-WX
The Engine
–
Niño 3.4
–
normal state
Event
Why it tips
The feedback chain
Temperature gap West − East
–
0
▲ normal
+8 °C
↓
Trade wind (zonal)
–
← easterly 8 m/s
westerly 4 →
↓
Thermocline tilt West − East
–
−40 m
▲ normal
+120 m
↓
Warm water reserve (thermocline depth vs normal)
–
−40 m
▲ normal
+40 m
↻
Reading the section
Ocean temperature, 3°S–3°N, 0–300 m
20 °C isotherm — the thermocline
Air: pale = easterly, orange = westerly
Clouds where the air rises
Height 15 km and depth 300 m, both strongly exaggerated
▶
1×
CAM
LOADING THE ENGINE …