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Mesoscale moisture transport by the low-level jet during the IHOP field experiment

Tollerud, Edward I. and Caracena, Fernando and Koch, Steven E. and Jamison, Brian D. and Hardesty, R. Michael and McCarty, Brandi J. and Kiemle, Christoph and Collander, Randall S. and Bartels, Diana L. and Albers, Steven and Shaw, Brent and Birkenheuer, Daniel L. and Brewer, W. Alan (2008) Mesoscale moisture transport by the low-level jet during the IHOP field experiment. Monthly Weather Review, 136, pp. 3781-3795. American Meteorological Society. DOI: 10.1175/2008MWR2421.1

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Official URL: http://ams.allenpress.com/perlserv/?request=get-archive&issn=1520-0493

Abstract

Previous studies of the Low-Level Jet (LLJ) over the Central Great Plains of the U.S. have been unable to determine the role that mesoscale and smaller circulations play in the transport of moisture. To address this issue, two aircraft missions during the International H2O Project (IHOP) were designed to closely observe a well-developed LLJ over the Great Plains (primarily Oklahoma and Kansas) with multiple observation platforms. In addition to standard operational platforms (most importantly radiosondes and profilers) to provide the large-scale setting, dropsondes released from the aircraft at 55 km intervals and a pair of onboard lidar instruments (HRDL for wind and DIAL for moisture) observed the moisture transport in the LLJ at greater resolution. Using these observations, we describe the multiscalar structure of the LLJ. We then focus attention on the bulk properties and effects of scales of motion by computing moisture fluxes through cross-sections that bracket the LLJ. From these computations, we are also able to compute Reynolds averages within the cross-sections. This allows us to estimate the bulk effect of integrated estimates of the contribution of small-scale (meso- to convective-scale) circulations to the overall transport. Finally, we briefly examine the performance of the Weather Research and Forecasting (WRF) model in forecasting the intensity and evolution of the LLJ for this case.

Item URL in elib:https://elib.dlr.de/56216/
Document Type:Article
Title:Mesoscale moisture transport by the low-level jet during the IHOP field experiment
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Tollerud, Edward I.NOAA ESRL, Boulder, CO, USAUNSPECIFIED
Caracena, FernandoNOAA ESRL, Boulder, CO, USAUNSPECIFIED
Koch, Steven E.NOAA ESRL, Boulder, CO, USAUNSPECIFIED
Jamison, Brian D.NOAA ESRL, Boulder, CO, USAUNSPECIFIED
Hardesty, R. MichaelNOAA ESRL, Boulder, CO, USAUNSPECIFIED
McCarty, Brandi J.NOAA ESRL, Boulder, CO, USAUNSPECIFIED
Kiemle, ChristophUNSPECIFIEDUNSPECIFIED
Collander, Randall S.NOAA ESRL, Boulder, CO, USAUNSPECIFIED
Bartels, Diana L.NOAA ESRL, Boulder, CO, USAUNSPECIFIED
Albers, StevenNOAA ESRL, Boulder, CO, USAUNSPECIFIED
Shaw, BrentWeather Decision Technologies, Norman, OK, USAUNSPECIFIED
Birkenheuer, Daniel L.NOAA ESRL, Boulder, CO, USAUNSPECIFIED
Brewer, W. AlanNOAA ESRL, Boulder, CO, USAUNSPECIFIED
Date:1 October 2008
Journal or Publication Title:Monthly Weather Review
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:136
DOI :10.1175/2008MWR2421.1
Page Range:pp. 3781-3795
Publisher:American Meteorological Society
Status:Published
Keywords:low-level jet, wind lidar, water vapor lidar, moisture transport
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben LIDAR-Forschung und -Entwicklung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Lidar
Deposited By: Kiemle, Dr.rer.nat. Christoph
Deposited On:20 Nov 2008
Last Modified:31 Jul 2019 19:23

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