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    The Canopy Horizontal Array Turbulence Study

    Source: Bulletin of the American Meteorological Society:;2010:;volume( 092 ):;issue: 005::page 593
    Author:
    Patton, Edward G.
    ,
    Horst, Thomas W.
    ,
    Sullivan, Peter P.
    ,
    Lenschow, Donald H.
    ,
    Oncley, Steven P.
    ,
    Brown, William O. J.
    ,
    Burns, Sean P.
    ,
    Guenther, Alex B.
    ,
    Held, Andreas
    ,
    Karl, Thomas
    ,
    Mayor, Shane D.
    ,
    Rizzo, Luciana V.
    ,
    Spuler, Scott M.
    ,
    Sun, Jielun
    ,
    Turnipseed, Andrew A.
    ,
    Allwine, Eugene J.
    ,
    Edburg, Steven L.
    ,
    Lamb, Brian K.
    ,
    Avissar, Roni
    ,
    Calhoun, Ronald J.
    ,
    Kleissl, Jan
    ,
    Massman, William J.
    ,
    Paw U, Kyaw Tha
    ,
    Weil, Jeffrey C.
    DOI: 10.1175/2010BAMS2614.1
    Publisher: American Meteorological Society
    Abstract: y Horizontal Array Turbulence Study (CHATS) took place in spring 2007 and is the third in the series of Horizontal Array Turbulence Study (HATS) experiments. The HATS experiments have been instrumental in testing and developing subfilterscale (SFS) models for large-eddy simulation (LES) of planetary boundary layer (PBL) turbulence. The CHATS campaign took place in a deciduous walnut orchard near Dixon, California, and was designed to examine the impacts of vegetation on SFS turbulence. Measurements were collected both prior to and following leafout to capture the impact of leaves on the turbulence, stratification, and scalar source/sink distribution. CHATS utilized crosswind arrays of fast-response instrumentation to investigate the impact of the canopy-imposed distribution of momentum extraction and scalar sources on SFS transport of momentum, energy, and three scalars. To directly test and link with PBL parameterizations of canopy-modified turbulent exchange, CHATS also included a 30-m profile tower instrumented with turbulence instrumentation, fast and slow chemical sensors, aerosol samplers, and radiation instrumentation. A highresolution scanning backscatter lidar characterized the turbulence structure above and within the canopy; a scanning Doppler lidar, mini sodar/radio acoustic sounding system (RASS), and a new helicopter-observing platform provided details of the PBL-scale flow. Ultimately, the CHATS dataset will lead to improved parameterizations of energy and scalar transport to and from vegetation, which are a critical component of global and regional land, atmosphere, and chemical models. This manuscript presents an overview of the experiment, documents the regime sampled, and highlights some preliminary key findings.
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      The Canopy Horizontal Array Turbulence Study

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4211530
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    contributor authorPatton, Edward G.
    contributor authorHorst, Thomas W.
    contributor authorSullivan, Peter P.
    contributor authorLenschow, Donald H.
    contributor authorOncley, Steven P.
    contributor authorBrown, William O. J.
    contributor authorBurns, Sean P.
    contributor authorGuenther, Alex B.
    contributor authorHeld, Andreas
    contributor authorKarl, Thomas
    contributor authorMayor, Shane D.
    contributor authorRizzo, Luciana V.
    contributor authorSpuler, Scott M.
    contributor authorSun, Jielun
    contributor authorTurnipseed, Andrew A.
    contributor authorAllwine, Eugene J.
    contributor authorEdburg, Steven L.
    contributor authorLamb, Brian K.
    contributor authorAvissar, Roni
    contributor authorCalhoun, Ronald J.
    contributor authorKleissl, Jan
    contributor authorMassman, William J.
    contributor authorPaw U, Kyaw Tha
    contributor authorWeil, Jeffrey C.
    date accessioned2017-06-09T16:33:01Z
    date available2017-06-09T16:33:01Z
    date copyright2011/05/01
    date issued2010
    identifier issn0003-0007
    identifier otherams-69819.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4211530
    description abstracty Horizontal Array Turbulence Study (CHATS) took place in spring 2007 and is the third in the series of Horizontal Array Turbulence Study (HATS) experiments. The HATS experiments have been instrumental in testing and developing subfilterscale (SFS) models for large-eddy simulation (LES) of planetary boundary layer (PBL) turbulence. The CHATS campaign took place in a deciduous walnut orchard near Dixon, California, and was designed to examine the impacts of vegetation on SFS turbulence. Measurements were collected both prior to and following leafout to capture the impact of leaves on the turbulence, stratification, and scalar source/sink distribution. CHATS utilized crosswind arrays of fast-response instrumentation to investigate the impact of the canopy-imposed distribution of momentum extraction and scalar sources on SFS transport of momentum, energy, and three scalars. To directly test and link with PBL parameterizations of canopy-modified turbulent exchange, CHATS also included a 30-m profile tower instrumented with turbulence instrumentation, fast and slow chemical sensors, aerosol samplers, and radiation instrumentation. A highresolution scanning backscatter lidar characterized the turbulence structure above and within the canopy; a scanning Doppler lidar, mini sodar/radio acoustic sounding system (RASS), and a new helicopter-observing platform provided details of the PBL-scale flow. Ultimately, the CHATS dataset will lead to improved parameterizations of energy and scalar transport to and from vegetation, which are a critical component of global and regional land, atmosphere, and chemical models. This manuscript presents an overview of the experiment, documents the regime sampled, and highlights some preliminary key findings.
    publisherAmerican Meteorological Society
    titleThe Canopy Horizontal Array Turbulence Study
    typeJournal Paper
    journal volume92
    journal issue5
    journal titleBulletin of the American Meteorological Society
    identifier doi10.1175/2010BAMS2614.1
    journal fristpage593
    journal lastpage611
    treeBulletin of the American Meteorological Society:;2010:;volume( 092 ):;issue: 005
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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