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dc.contributor.authorMenezes, Viviane V.  Concept link
dc.contributor.authorFarrar, J. Thomas  Concept link
dc.contributor.authorBower, Amy S.  Concept link
dc.date.accessioned2018-05-15T18:22:27Z
dc.date.available2018-05-15T18:22:27Z
dc.date.issued2018-03-19
dc.identifier.citationRemote Sensing of Environment 209 (2018): 677-699en_US
dc.identifier.urihttps://hdl.handle.net/1912/10349
dc.description© The Author(s), 2018. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Remote Sensing of Environment 209 (2018): 677-699, doi:10.1016/j.rse.2018.02.075.en_US
dc.description.abstractWe analyse ten years of QuikSCAT satellite surface winds to statistically characterize the spatio-temporal variability of the westward mountain-gap wind jets over the northern Red Sea. These wind jets bring relatively cold and dry air from the Arabian Desert, increasing heat loss and evaporation over the region similar to cold-air outbreaks from mid and subpolar latitudes. QuikSCAT captures the spatial structure of the wind jets and agrees well with in situ observations from a heavily instrumented mooring in the northern Red Sea. The local linear correlations between QuikSCAT and in situ winds are 0.96 (speed) and 0.85 (direction). QuikSCAT also reveals that cross-axis winds such as the mountain-gap wind jets are a major component of the regional wind variability. The cross-axis wind pattern appears as the second (or third) mode in the four vector Empirical Orthogonal Function analyses we performed, explaining between 6% to 11% of the wind variance. Westward wind jets are typical in winter, especially in December and January, but with strong interannual variability. Several jets can occur simultaneously and cover a large latitudinal range of the northern Red Sea, which we call large-scale westward events. QuikSCAT recorded 18 large-scale events over ten years, with duration between 3 to 8 days and strengths varying from 3–4 to 9–10 m/s. These events cause large changes in the wind stress curl pattern, imposing a remarkable sequence of positive and negative curl along the Red Sea main axis, which might be a wind forcing mechanism for the oceanic mesoscale circulation.en_US
dc.description.sponsorshipThis work was supported by NSF grant OCE-1435665 and NASA grant NNX14AM71G.en_US
dc.language.isoen_USen_US
dc.publisherElsevieren_US
dc.relation.urihttps://doi.org/10.1016/j.rse.2018.02.075
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectQuikSCATen_US
dc.subjectAir-sea interactionen_US
dc.subjectWind jetsen_US
dc.subjectMountain gapen_US
dc.subjectEvaporationen_US
dc.subjectHeat lossen_US
dc.titleWestward mountain-gap wind jets of the northern Red Sea as seen by QuikSCATen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.rse.2018.02.075


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Attribution-NonCommercial-NoDerivatives 4.0 International
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 International