On the Effects of Islands' Geometry and Size on Inducing Sea Breeze Circulation

Y. Mahrer Cooperative Institute for Research in the Atmosphere, Colorado State University, Fort Collins, CO 80323

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M. Segal Department of Atmospheric Science, Colorado State University, Fort Collins, CO 80523

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Abstract

Model scaling of the characteristics of the sea breeze circulation involved with circular and slab elongated-symmetric midlatitude islands was performed. Larger horizontal and vertical velocities were indicated over the small circular islands as compared to those over corresponding elongated islands. The circulation characteristics of both types of islands become similar when the half-width of the island is about the same as the distance of inland penetration of the sea breeze in a nonisland case. Evaluation of the results through a wale analysis is presented.

Abstract

Model scaling of the characteristics of the sea breeze circulation involved with circular and slab elongated-symmetric midlatitude islands was performed. Larger horizontal and vertical velocities were indicated over the small circular islands as compared to those over corresponding elongated islands. The circulation characteristics of both types of islands become similar when the half-width of the island is about the same as the distance of inland penetration of the sea breeze in a nonisland case. Evaluation of the results through a wale analysis is presented.

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