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dc.contributor.authorRahn, David A.
dc.contributor.authorParish, Thomas R.
dc.contributor.authorLeon, David C.
dc.date.accessioned2014-07-03T17:13:42Z
dc.date.available2014-07-03T17:13:42Z
dc.date.issued2013-11
dc.identifier.citationRahn, David A. et al. (2013). Airborne measurements of coastal jet transition around Point Conception, CA. Journal of Applied Meteorology and Climatology 141:3827-3839. http://dx.doi.org/10.1175/MWR-D-13-00030.1en_US
dc.identifier.urihttp://hdl.handle.net/1808/14485
dc.descriptionThis is the publisher's version, also available electronically from http://journals.ametsoc.org/doi/abs/10.1175/MWR-D-13-00030.1en_US
dc.description.abstractLow-level winds along the Californian coast during spring and early summer are typically strong and contained within the cool, well-mixed marine boundary layer (MBL). A temperature inversion separates the MBL from the warmer free troposphere. This setup is often represented by a two-layer shallow-water system with a lateral boundary. Near a prominent point such as Point Conception, California, the fast-moving MBL flow is supercritical and can exhibit distinct features including a compression bulge and an expansion fan. Measurements from the University of Wyoming King Air research aircraft on 19 May 2012 during the Precision Atmospheric MBL Experiment (PreAMBLE) captured wind in excess of 14 m s−1 off of Point Conception under clear skies and wind ~2 m s−1 east of San Miguel in the California Bight. A compression bulge was identified upwind of Point Conception. When the flow rounds the point, the MBL undergoes a near collapse and there is a spike in MBL height embedded in the general decrease of MBL height with greater turbulence just downwind that is associated with greater mixing through the inversion layer. Lidar and in situ measurements reveal that transport of continental aerosol is present near the pronounced MBL height change and that there is a complex vertical structure within the Santa Barbara Channel. Horizontal pressure gradients are obtained by measuring the slope of an isobaric surface. Observations of wind and pressure perturbations are able to be linked through a simple Bernoulli relationship. Variation of MBL depth explains most, but not all of the variation of the isobaric surface.en_US
dc.publisherAmerican Meteorological Societyen_US
dc.subjectCoastlines
dc.subjectMesoscale processes
dc.subjectJets
dc.subjectMarine boundary layer
dc.subjectAircraft observations
dc.titleAirborne Measurements of Coastal Jet Transition around Point Conception, Californiaen_US
dc.typeArticle
kusw.kuauthorRahn, David A.
kusw.kudepartmentGeographyen_US
dc.identifier.doi10.1175/MWR-D-13-00030.1
kusw.oaversionScholarly/refereed, publisher version
kusw.oapolicyThis item meets KU Open Access policy criteria.
dc.rights.accessrightsopenAccess


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