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[Translate to English:] Valentina Collavini
My current PhD topic: How does land shape the Walker circulation?
The presence of the Pacific Walker circulation is generally attributed to the zonal sea surface temperature (SST) gradient in the equatorial Pacific Ocean. While easterly winds transport warm surface waters westward, the upwelling of cold deep waters to the east sustains the Eastern Pacific cold tongue. This drives a closed overturning atmospheric circulation characterized by ascending motion over the Maritime…