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dc.contributor.authorEvans, Stuart
dc.contributor.authorDawson, Eliza
dc.contributor.authorGinoux, Paul
dc.date.accessioned2020-08-24T02:42:25Z
dc.date.available2020-08-24T02:42:25Z
dc.date.issued2020
dc.identifier.citationEvans, S. M., E. J. Dawson, and P. A. Ginoux (2020), Linear relation between shifting ITCZ and dust hemispheric asymmetry, Geophysical Research Lettersen_US
dc.identifier.urihttp://hdl.handle.net/10477/82087
dc.description.abstractMineral dust is emitted primarily from arid regions, which may shrink or expand in one or both hemispheres, producing a complex and asymmetric pattern of radiative forcing that varies on interannual to millennial timescales. We assess the impact of hemispheric dust asymmetry on tropical precipitation. Using the GFDL coupled climate model CM3 to simulate dust emission, we vary source strength in each hemisphere individually. Hemispherically asymmetric dust emission produces asymmetric dust load and radiative forcing. We find that the ITCZ shifts away from the hemisphere with enhanced dust load in response to the forcing asymmetry. We find significant linear relationships between the hemispheric imbalance and the latitude of tropical precipitation globally, in the Pacific, and especially in the Atlantic basin. This relationship offers a first-order estimation of dust effects on the hydrological cycle when investigating records of paleodust, and for accurately predicting dust effects and feedbacks on future climate.en_US
dc.description.sponsorshipThis research has been funded by the RENEW Institute at the University at Buffalo, the NOAA Ernest F. Hollings Undergraduate Scholarship, and the Carbon Mitigation Initiative of the Princeton Environmental Institute at Princeton University.en_US
dc.language.isoen_USen_US
dc.publisherAGUen_US
dc.subjectdust, ITCZ, tropical precipitation, paleoclimateen_US
dc.titleLinear relation between shifting ITCZ and dust hemispheric asymmetryen_US
dc.typeArticleen_US


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