Investigation of the planetary boundary layer height variations over complex terrain

R. Lieman; P. Alpert

doi:10.1007/BF00705550

Investigation of the planetary boundary layer height variations over complex terrain

R. Lieman^*, P. Alpert

^*Corresponding author for this work

Department of Geophysics

Research output: Contribution to journal › Article › peer-review

Abstract

The effects of sea-breeze interactions with synoptic forcing on the PBL height over complex terrain are investigated through the use of a 3-D mesoscale numerical model. Two of the results are as follows. First, steep PBL height gradients-order of 1500 m over a grid interval of 10 km - are associated with the sea-breeze front and are enhanced by the topography. Second, a significant horizontal shift in the maximum PBL height relative to the mountains, is induced by a corresponding displacement of the thermal ridge due to the mountains, in the presence of large scale flow.

Original language	English
Pages (from-to)	129-142
Number of pages	14
Journal	Boundary-Layer Meteorology
Volume	62
Issue number	1-4
DOIs	https://doi.org/10.1007/BF00705550
State	Published - Jan 1993

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10.1007/BF00705550

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abstract = "The effects of sea-breeze interactions with synoptic forcing on the PBL height over complex terrain are investigated through the use of a 3-D mesoscale numerical model. Two of the results are as follows. First, steep PBL height gradients-order of 1500 m over a grid interval of 10 km - are associated with the sea-breeze front and are enhanced by the topography. Second, a significant horizontal shift in the maximum PBL height relative to the mountains, is induced by a corresponding displacement of the thermal ridge due to the mountains, in the presence of large scale flow.",

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AB - The effects of sea-breeze interactions with synoptic forcing on the PBL height over complex terrain are investigated through the use of a 3-D mesoscale numerical model. Two of the results are as follows. First, steep PBL height gradients-order of 1500 m over a grid interval of 10 km - are associated with the sea-breeze front and are enhanced by the topography. Second, a significant horizontal shift in the maximum PBL height relative to the mountains, is induced by a corresponding displacement of the thermal ridge due to the mountains, in the presence of large scale flow.

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Investigation of the planetary boundary layer height variations over complex terrain

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