Author: David P. Rogers
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
Book Description
Aircraft observations obtained during the Frontal Air-Sea Interaction Experiment (FASINEX) are used to investigate the structure of the marine atmospheric boundary layer in the vicinity of an ocean front. A quasi-stationary sea surface temperature (STT) discontinuity of 2 C was maintained across the frontal zone throughout the duration of the experiment. The primary response of the atmosphere to changes in the SST was observed in the surface-related turbulence fluxes. In the case of warm air flowing over cold water, the boundary layer appears to develop an internal boundary layer (IBL) in response to the sudden change in the sea surface temperature. The organized updrafts and downdrafts within this layer collapse with entrainment-detrainment processes in these cells dominating the turbulence statistics. The IBL grows in response to the wind shear in this layer, although the surface shear stress is much smaller on the colder side of the front than on the warm. The depth of the IBL, and, in the absence of the IBL, the mixed layer are found to scale with the friction velocity and the Coriolis parameter. The IBL confines the surface-related turbulent mixing and shear-driven processes to the lower layers of the atmosphere. Thus, the shallow boundary layer cloud field appears to be maintained primarily by radiative transfer within the cloud layer. Multiple cloud-capped mixed layers were frequently observed throughout the experiment. They appear to be directly related to the horizontal variation of SST with deeper boundary layers and higher cloud levels formed over warmer water. Air water interactions; Reprints. (edc).
The Marine Boundary Layer in the Vicinity of an Ocean Front
Author: David P. Rogers
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
Book Description
Aircraft observations obtained during the Frontal Air-Sea Interaction Experiment (FASINEX) are used to investigate the structure of the marine atmospheric boundary layer in the vicinity of an ocean front. A quasi-stationary sea surface temperature (STT) discontinuity of 2 C was maintained across the frontal zone throughout the duration of the experiment. The primary response of the atmosphere to changes in the SST was observed in the surface-related turbulence fluxes. In the case of warm air flowing over cold water, the boundary layer appears to develop an internal boundary layer (IBL) in response to the sudden change in the sea surface temperature. The organized updrafts and downdrafts within this layer collapse with entrainment-detrainment processes in these cells dominating the turbulence statistics. The IBL grows in response to the wind shear in this layer, although the surface shear stress is much smaller on the colder side of the front than on the warm. The depth of the IBL, and, in the absence of the IBL, the mixed layer are found to scale with the friction velocity and the Coriolis parameter. The IBL confines the surface-related turbulent mixing and shear-driven processes to the lower layers of the atmosphere. Thus, the shallow boundary layer cloud field appears to be maintained primarily by radiative transfer within the cloud layer. Multiple cloud-capped mixed layers were frequently observed throughout the experiment. They appear to be directly related to the horizontal variation of SST with deeper boundary layers and higher cloud levels formed over warmer water. Air water interactions; Reprints. (edc).
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
Book Description
Aircraft observations obtained during the Frontal Air-Sea Interaction Experiment (FASINEX) are used to investigate the structure of the marine atmospheric boundary layer in the vicinity of an ocean front. A quasi-stationary sea surface temperature (STT) discontinuity of 2 C was maintained across the frontal zone throughout the duration of the experiment. The primary response of the atmosphere to changes in the SST was observed in the surface-related turbulence fluxes. In the case of warm air flowing over cold water, the boundary layer appears to develop an internal boundary layer (IBL) in response to the sudden change in the sea surface temperature. The organized updrafts and downdrafts within this layer collapse with entrainment-detrainment processes in these cells dominating the turbulence statistics. The IBL grows in response to the wind shear in this layer, although the surface shear stress is much smaller on the colder side of the front than on the warm. The depth of the IBL, and, in the absence of the IBL, the mixed layer are found to scale with the friction velocity and the Coriolis parameter. The IBL confines the surface-related turbulent mixing and shear-driven processes to the lower layers of the atmosphere. Thus, the shallow boundary layer cloud field appears to be maintained primarily by radiative transfer within the cloud layer. Multiple cloud-capped mixed layers were frequently observed throughout the experiment. They appear to be directly related to the horizontal variation of SST with deeper boundary layers and higher cloud levels formed over warmer water. Air water interactions; Reprints. (edc).
A Study of the Marine Atmospheric Boundary Layer in the Coastal Ocean Dynamics Experiment (CODE)
Author: Janice Campbell
Publisher:
ISBN:
Category : Ocean-atmosphere interaction
Languages : en
Pages : 108
Book Description
Publisher:
ISBN:
Category : Ocean-atmosphere interaction
Languages : en
Pages : 108
Book Description
The Structure of the Marine Atmospheric Boundary Layer
Author: Sylvain M. Joffre
Publisher:
ISBN:
Category : Boundary layer (Meteorology)
Languages : en
Pages : 122
Book Description
Publisher:
ISBN:
Category : Boundary layer (Meteorology)
Languages : en
Pages : 122
Book Description
An observational study of atmospheric boundary layer over the sea
Author: Peter Kenneth Taylor
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Semaphore Field Phase Support
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Our aim is to improve the understanding of the processes determining the turbulent and radiative fluxes at the sea surface, particularly their dependence on sea state and on mesoscale structures in the planetary boundary layer. The objective of the work carried under this grant is to measure in detail the major parameters needed (i) to explain the variability of the turbulent air sea fluxes of momentum, heat and water vapor with sea state and mesoscale boundary layer structures, and (ii) to test the flux-gradient relations.
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Our aim is to improve the understanding of the processes determining the turbulent and radiative fluxes at the sea surface, particularly their dependence on sea state and on mesoscale structures in the planetary boundary layer. The objective of the work carried under this grant is to measure in detail the major parameters needed (i) to explain the variability of the turbulent air sea fluxes of momentum, heat and water vapor with sea state and mesoscale boundary layer structures, and (ii) to test the flux-gradient relations.
Monthly Weather Review
Author:
Publisher:
ISBN:
Category : Meteorology
Languages : en
Pages : 1272
Book Description
Publisher:
ISBN:
Category : Meteorology
Languages : en
Pages : 1272
Book Description
An Introduction to Turbulence in Geophysics and Air-sea Interactions
Author: Michel F. Coantic
Publisher:
ISBN:
Category : Ocean-atmosphere interaction
Languages : en
Pages : 596
Book Description
Publisher:
ISBN:
Category : Ocean-atmosphere interaction
Languages : en
Pages : 596
Book Description
An Airborne Investigation of the Structure of the Atmospheric Boundary Layer Over the Tropical Ocean
Author: Mark Donelan
Publisher:
ISBN:
Category : Boundary layer (Meteorology)
Languages : en
Pages : 147
Book Description
Publisher:
ISBN:
Category : Boundary layer (Meteorology)
Languages : en
Pages : 147
Book Description
Annales Geophysicae
Author:
Publisher:
ISBN:
Category : Astrophysics
Languages : en
Pages : 502
Book Description
Publisher:
ISBN:
Category : Astrophysics
Languages : en
Pages : 502
Book Description
International Aerospace Abstracts
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 974
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 974
Book Description