Fig. 2: The observed North Atlantic wind strengthening and the North Atlantic warming hole (NAWH) index. | Nature Communications

Fig. 2: The observed North Atlantic wind strengthening and the North Atlantic warming hole (NAWH) index.

From: Indian Ocean warming as a driver of the North Atlantic warming hole

Fig. 2: The observed North Atlantic wind strengthening and the North Atlantic warming hole (NAWH) index.The alternative text for this image may have been generated using AI.

a 30-year climatological mean and b long-term trends during 1950–2015 in sea level pressure (SLP; units: mb) and surface wind vectors (units: m s−1). c The annual-mean NAWH index (blue) and surface zonal winds (green) averaged within the green box in panel (b); the heavy lines represent 11-year running means. The surface wind and sea level pressure data are from NCEP/NCAR Reanalysis 1; the NAWH index is calculated based on ERSST v4.

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