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№1 слайд![Heat fluxes in the atmosphere](/documents_5/c0ee3aef771edd4cfcb2f875ff239a53/img0.jpg)
Содержание слайда: Heat fluxes in the atmosphere
Heat to the atmosphere comes mainly from the underlying surface. Processes responsible for the heat transfer are:
№2 слайд![](/documents_5/c0ee3aef771edd4cfcb2f875ff239a53/img1.jpg)
№3 слайд![Heat flux notion The](/documents_5/c0ee3aef771edd4cfcb2f875ff239a53/img2.jpg)
Содержание слайда: Heat flux notion
The quantity being transferred by the air parcels in a unit of time through a unit of area facing the transfer direction is called HEAT FLUX.
There are convective heat flux and eddy heat flux.
Convective heat flux, in turn, is divided into advective one (horizontal heat transfer) and real convective (vertical heat transfer).
In meteorology, the horizontal heat flux is called advective flux (Qa), and the vertical one is called convective flux (Qc).
№4 слайд![Convective and advective heat](/documents_5/c0ee3aef771edd4cfcb2f875ff239a53/img3.jpg)
Содержание слайда: Convective and advective heat fluxes
№5 слайд![Eddy heat flux Eddy heat flux](/documents_5/c0ee3aef771edd4cfcb2f875ff239a53/img4.jpg)
Содержание слайда: Eddy heat flux
Eddy heat flux is caused by wind velocity pulsation
№6 слайд![](/documents_5/c0ee3aef771edd4cfcb2f875ff239a53/img5.jpg)
№7 слайд![](/documents_5/c0ee3aef771edd4cfcb2f875ff239a53/img6.jpg)
№8 слайд![Individual and local partial](/documents_5/c0ee3aef771edd4cfcb2f875ff239a53/img7.jpg)
Содержание слайда: Individual and local (partial) derivatives
When an air parcel moves, its state parameters are not necessarily constant; they are function of coordinates and time.
For the moving parcel, the coordinates, in turn, are functions of time.
№9 слайд![Energy equation Temperature](/documents_5/c0ee3aef771edd4cfcb2f875ff239a53/img8.jpg)
Содержание слайда: Energy equation
Temperature variation is of prime interest for meteorologists. It depends on heat influx. It can be determined on the base of the energy conservation equation.
Heat influx:
№10 слайд![](/documents_5/c0ee3aef771edd4cfcb2f875ff239a53/img9.jpg)
№11 слайд![](/documents_5/c0ee3aef771edd4cfcb2f875ff239a53/img10.jpg)
№12 слайд![](/documents_5/c0ee3aef771edd4cfcb2f875ff239a53/img11.jpg)
№13 слайд![](/documents_5/c0ee3aef771edd4cfcb2f875ff239a53/img12.jpg)
№14 слайд![. Non-periodical T variations](/documents_5/c0ee3aef771edd4cfcb2f875ff239a53/img13.jpg)
Содержание слайда: 1. Non-periodical T variations
Above boundary layer (in the free atm.)
Small time intervals (about 24 h)
no heat influx adiab. process
Energy equation:
№15 слайд![. Periodical T variations](/documents_5/c0ee3aef771edd4cfcb2f875ff239a53/img14.jpg)
Содержание слайда: 2. Periodical T variations
Within the boundary layer (diurnal T variations)
long time intervals
only vertical eddy heat influx
Energy equation ( or equation of the conductivity of the atm.):
№16 слайд![. Air mass moving over](/documents_5/c0ee3aef771edd4cfcb2f875ff239a53/img15.jpg)
Содержание слайда: 3. Air mass moving over non-homogeneous surface
Advection and eddy exchange are important
Taking steady state process
The process is called
air mass transformation
Energy equation
№17 слайд![. Annual T variation Most](/documents_5/c0ee3aef771edd4cfcb2f875ff239a53/img16.jpg)
Содержание слайда: 4. Annual T variation
Most important role to
Local, advective and convective
derivatives 0 over a long period of time
Energy equation