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

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

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

Kurzfassung

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.

Dokumentart:Zeitschriftenbeitrag
Titel:Mesoscale moisture transport by the low-level jet during the IHOP field experiment
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Tollerud, Edward I.NOAA ESRL, Boulder, CO, USA
Caracena, FernandoNOAA ESRL, Boulder, CO, USA
Koch, Steven E.NOAA ESRL, Boulder, CO, USA
Jamison, Brian D.NOAA ESRL, Boulder, CO, USA
Hardesty, R. MichaelNOAA ESRL, Boulder, CO, USA
McCarty, Brandi J.NOAA ESRL, Boulder, CO, USA
Kiemle, ChristophNICHT SPEZIFIZIERT
Collander, Randall S.NOAA ESRL, Boulder, CO, USA
Bartels, Diana L.NOAA ESRL, Boulder, CO, USA
Albers, StevenNOAA ESRL, Boulder, CO, USA
Shaw, BrentWeather Decision Technologies, Norman, OK, USA
Birkenheuer, Daniel L.NOAA ESRL, Boulder, CO, USA
Brewer, W. AlanNOAA ESRL, Boulder, CO, USA
Datum:1 Oktober 2008
Erschienen in:Monthly Weather Review
Referierte Publikation:Ja
In Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:136
DOI :10.1175/2008MWR2421.1
Seitenbereich:Seiten 3781-3795
Status:veröffentlicht
Stichwörter:low-level jet, wind lidar, water vapor lidar, moisture transport
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben LIDAR-Forschung und -Entwicklung (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Lidar
Hinterlegt von: Dr.rer.nat. Christoph Kiemle
Hinterlegt am:20 Nov 2008
Letzte Änderung:20 Okt 2014 14:32

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