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Geoscience Letters

Official Journal of the Asia Oceania Geosciences Society (AOGS)

Fig. 3 | Geoscience Letters

Fig. 3

From: Unprecedented warming in Northwestern India during April of 2022: roles of local forcing and atmospheric Rossby wave

Fig. 3

Regressions of the PC1 with a SAT (colors; °C), sea level pressure (contours; hPa), b sea surface temperature (SST; colors; °C) and surface winds (vectors; m/s) for the period of 1979–2022. c Is the same as b, but for winds (vectors; m/s) at 700 hPa and the specific humidity (colors; g kg−1) integral from 850 to 700 hPa. d Is the same as b, but for the vorticity (colors; × 105 s−1) and winds (vectors; m/s) at 200 hPa. The green box marks the region from 25°N to 35°N and from 63°E to 93°E, which is used to define the anti-cyclone index (ACI). Only anomalies which are significant at 95% significance level are shown

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