A Survey on the Relationship between Ocean Subsurface Temperature and Tropical Cyclone over the Western North Pacific
Composite anomalies of (a) the 1000 hPa absolute vorticity (units: ), (d) the mean temperature in the ocean mixed layer (units: °C), (g) the net longwave radiation at the sea surface (units: ), and (j) the depth of 26°C isotherm (units: ) in JASON season for the subsurface cold years; (b), (e), (h), and (k) as in (a), (d), (g), and (j), but for the subsurface warm years; (c), (f), (i), and (l) for the difference of composite anomalies between subsurface cold and warm years (cold-warm). Dashed rectangle indicates the main TC genesis area of southeastern quadrant mentioned in Section 4.2. The cross signs indicate that the values are statistically significant at the 95% confidence level.
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