Browsing by Author "Couvreux, Fleur"

Now showing items 1-9 of 9

    • An intercomparison of mesoscale simulations during the Boundary Layer Late Afternoon and Sunset Turbulence (BLLAST) experimental field campaign 

      Jiménez Cortés, M. Antònia; Angevine, Wayne M.; Bazille, Eric; Couvreux, Fleur; Cuxart Rodamillans, Joan; Pino González, David; Sastre Marugas, Mariano (2014)
      Conference lecture
      Open Access
      The Convective (diurnal, CBL) and Stably stratified (nocturnal, SBL) Boundary Layers over land have been extensively observed and relatively successfully modeled. But the early morning transition, when the CBL emerges from ...

    • Boundary Layer Late Afternoon and Sunset Turbulence: the BLLAST 2011 experiment 

      Pino González, David; Lothon, Marie; Lohou, Fabienne; Pardyjak, Erick; Reuder, Joaquim; Legain, Dominique; Durand, Pierre; Couvreux, Fleur; Vilà-Guerau de Arellano, Jordi (2012)
      Conference report
      Open Access

    • Evolution of the turbulence during the afternoon transition of the convective boundary layer: a spectral analysis 

      Darbieu, Clara; Lohou, Fabienne; Lothon, Marie; Couvreux, Fleur; Pino González, David; Durand, Pierre; Blay Carreras, Estel; Vilà Guerau de Arellano, Jordi (American Meteorological Society, 2014)
      Conference report
      Open Access
      The transition from a well-mixed convective boundary layer to a residual layer overlying a stabilized nocturnal layer raises several issues, which remain difficult to address from both modeling and observational perspectives. ...

    • Observations and large-eddy simulations of entrainment in the sheared sahelian boundary layer 

      Canut, Guylaine; Couvreux, Fleur; Lothon, Marie; Pino González, David; Saïd, Frédérique (2011-10-16)
      Article
      Restricted access - publisher's policy
      At the top of the planetary boundary layer, the entrainment of air, which incorporates dry and warm air from the free troposphere into the boundary layer, is a key process for exchanges with the free troposphere since ...

    • Studying the Boundary Layer Late Afternoon and Sunset Turbulence (BLLAST) 

      Vilà-Guerau de Arellano, Jordi; Pino González, David; Pardyjak, Erick; Mahrt, Larry; Lohou, Fabienne; Jonker, Harm J. J.; Gioli, Beniamino; Gibert, Fabien; Durand, Pierre; Lothon, Marie; Lenschow, Donald; Angevine, Wayne; Bange, Jens; Beare, Robert; Canut, Guylaine; Couvreux, Fleur; Delbarre, Hervé (2010)
      Conference report
      Open Access
      At the end of the afternoon, when the surface heat fluxes start to sharply decrease, the CBL turns from a convective well-mixed layer to an intermittently turbulent residual layer overlying a stably-stratified ...

    • Studying the Boundary Layer Late Afternoon nd Sunset Turbulence (BLLAST) 

      Pino González, David; Lothon, Marie; Angevine, Wayne M.; Bange, Jens; Beare, R.J.; Beyrich, Frank; Canut, Guylaine; Couvreux, Fleur; Delbarre, Hervé; Gibert, Fabien; Jonker, Harm J. J.; Lenschow, Donald; Lohou, Fabienne; Mahrt, Larry; Pardyjak, Eric; Sorbjan, Zibgniew; Vilà-Guerau de Arellano, Jordi (2010)
      Conference lecture
      Open Access
      At the end of the afternoon, when the surface heat fluxes start to sharply decrease, the CBL turns from a convective well-mixed layer to an intermittently turbulent residual layer overlying a stably-stratified boundary ...

    • The Boundary Layer Late Afternoon and Sunset Turbulence 2011 field experiment (BLT) 

      Lothon, Marie; Lohou, Fabienne; Durand, Pierre; Couvreux, Fleur; Hartogensis, Oskar; Legain, Dominique; Pardyjak, Erick; Pino González, David; Reuder, Joaquim; Vilà-Guerau de Arellano, Jordi (2012)
      Conference report
      Open Access
      Growth of the CBL over land in the middle of the day has been extensively observed and relatively successfully modeled. However the late afternoon transition (LAT), like the morning transition, is difficult to observe ...

    • The entrainment process between the Monsoon flow and the Saharan Air Layer in the West African Monsoon system 

      Canut, Guylaine; Couvreux, Fleur; Lothon, Marie; Pino González, David; Saïd, Frédérique (2010)
      Conference lecture
      Open Access

    • Turbulence vertical structure of the boundary layer during the afternoon transition 

      Darbieu, Clara; Lohou, Fabienne; Lothon, Marie; Vilà Guerau de Arellano, Jordi; Couvreux, Fleur; Durand, Pierre; Pino González, David; Patton, Edward; Nilsson, Erik; Blay-Carreras, Estel; Gioli, Beniamino (2015-09-09)
      Article
      Open Access
      We investigate the decay of planetary boundary layer (PBL) turbulence in the afternoon, from the time the surface buoyancy flux starts to decrease until sunset. Dense observations of mean and turbulent parameters ...