Vertical profiles of virtual potential temperature,specific humidity,temperature at saturation points,moist static energies along with parcel condensing levels using minisonde data are analysed for two stations throug...Vertical profiles of virtual potential temperature,specific humidity,temperature at saturation points,moist static energies along with parcel condensing levels using minisonde data are analysed for two stations through which a mon- soon depression passed.The height of the cloud base came down as low as 910 hPa level from 835 hPa.Equivalent po- tential temperature increased in the vertical profile as well as in the conserved variable diagram as the depression ap- proached the station.Parcel condensing levels showed clearly inversion top and cloud top but not in all cases.Moist stat- ic energy showed an increase upto 10 kJ/kg as the depression approached.展开更多
Correction of non-ideal effect due to a magnetic fluctuating tensor is derived from the ideal MHD equations. The inclusion of a magnetic turbulent field leads to modifications of the hydrostatic equilibrium equation a...Correction of non-ideal effect due to a magnetic fluctuating tensor is derived from the ideal MHD equations. The inclusion of a magnetic turbulent field leads to modifications of the hydrostatic equilibrium equation and thermodynamical variables such as the temperature T, the adiabatic exponent γ, the adiabatic temperature gradient ?<SUB>ad</SUB> and the temperature gradient ?. In particular, the modifications in the adiabatic and radiative temperature gradients will result in a change in the Schwarzchild criterion, hence in the location of the base of the convective zone. Incorporating the modifications, we construct a modified thermodynamical equilibrium structure of the Sun.展开更多
文摘Vertical profiles of virtual potential temperature,specific humidity,temperature at saturation points,moist static energies along with parcel condensing levels using minisonde data are analysed for two stations through which a mon- soon depression passed.The height of the cloud base came down as low as 910 hPa level from 835 hPa.Equivalent po- tential temperature increased in the vertical profile as well as in the conserved variable diagram as the depression ap- proached the station.Parcel condensing levels showed clearly inversion top and cloud top but not in all cases.Moist stat- ic energy showed an increase upto 10 kJ/kg as the depression approached.
基金Supported by the National Natural Science Foundation of China.
文摘Correction of non-ideal effect due to a magnetic fluctuating tensor is derived from the ideal MHD equations. The inclusion of a magnetic turbulent field leads to modifications of the hydrostatic equilibrium equation and thermodynamical variables such as the temperature T, the adiabatic exponent γ, the adiabatic temperature gradient ?<SUB>ad</SUB> and the temperature gradient ?. In particular, the modifications in the adiabatic and radiative temperature gradients will result in a change in the Schwarzchild criterion, hence in the location of the base of the convective zone. Incorporating the modifications, we construct a modified thermodynamical equilibrium structure of the Sun.
