Relationship Arctic sea ice extent and South Asian Summer monsoon rainfall (a) and composite (b-c, e-f) and trend analysis (d,g). (IMAGE)

Ocean-Land-Atmosphere Research (OLAR)

Relationship Arctic sea ice extent and South Asian Summer monsoon rainfall (a) and composite (b-c, e-f) and trend analysis (d,g).

Caption

June-July(JJ) Arctic sea ice extent related to the second half of South Asian summer monsoon rainfall (i.e., August-September :AS).       (a) Detrended and normalized (by its standard deviation) Arctic sea ice extent (sq. km) is shown by bar plot with an axis on the left. The axis on the right side shows the total sea ice extent with its linear trend (black solid and dashed lines, respectively). The Northwest (NW) box averaged accumulated rainfall (in mm) during AS and its linear trend are shown by the blue solid and dashed lines, respectively, with the corresponding axis on the right. The composite anomaly of AS rainfall (mm) from GPCP during (b) negative sea ice anomaly year (blue bar) and (c) positive sea ice anomaly year (red bar) in millimeters. Similarly, (e) and (f) are the same as (b) and (c), respectively, but for the CRU dataset. Change in AS rainfall (mm) in the past 44 years (1979–2022) using (d) GPCP and (g) CRU rainfall dataset. Mann–Kendall’s 2 tailed test is used for identifying statistically significant patterns (stippled with black dots).

Credit

Chaudhari et. al. 2026

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