Ⅰ. INTRODUCTIONExamination of the relationship between the sudden stratospheric warmings and the blocking high in the troposphere indicates that there is the persistent strong warm advection in the stratosphere, whic...Ⅰ. INTRODUCTIONExamination of the relationship between the sudden stratospheric warmings and the blocking high in the troposphere indicates that there is the persistent strong warm advection in the stratosphere, which occurred primarily near Greenland over the northern Atlantic prior to each sudden stratospheric warming for at least ten days, the development of the blocking high in the troposphere is also closely related to the persistent warm advection展开更多
The survey for the HEIFE(Atmosphere-Land Surface Processes Experiment at Heihe River Basin,Western China)is given in the paper.The following basic subjects for land-surface process- es in arid areas are studied:(1)the...The survey for the HEIFE(Atmosphere-Land Surface Processes Experiment at Heihe River Basin,Western China)is given in the paper.The following basic subjects for land-surface process- es in arid areas are studied:(1)the general characteristics of the energy budget on ground surface in arid areas;(2)the parameterization of the land surface processes;(3)the interaction between oasis and its desert circumstances,a special phenomenon in arid areas.The analysis shows that the sensible heat flux in the surface energy budget is in the majority,and the latent heat flux may be neglected.The influence of atmospheric stratification stability on the turbulent transfer of energy and substance must be considered in parameterization of land surface processes in arid areas.The “cold island effect”phenomenon in oasis and the“humidity inversion”phenomenon in desert near oasis are the result of the interaction between them.The results would improve the understanding of land surface processes in arid areas.展开更多
Ⅰ. INTRODUCTIONMany observational data have demonstrated that the sudden stratospheric warming (SSW) play an essential role in stratospheric circulation and its seasonal variation. And SSW is usually accompanied by a...Ⅰ. INTRODUCTIONMany observational data have demonstrated that the sudden stratospheric warming (SSW) play an essential role in stratospheric circulation and its seasonal variation. And SSW is usually accompanied by anomalous amplification of planetary wavenumbers 1 and/or 2 in the troposphere. Matsuno firstly proposed from dynamical point that SSW re-展开更多
文摘Ⅰ. INTRODUCTIONExamination of the relationship between the sudden stratospheric warmings and the blocking high in the troposphere indicates that there is the persistent strong warm advection in the stratosphere, which occurred primarily near Greenland over the northern Atlantic prior to each sudden stratospheric warming for at least ten days, the development of the blocking high in the troposphere is also closely related to the persistent warm advection
基金This study is supported by the National Natural Science Foundation of China.
文摘The survey for the HEIFE(Atmosphere-Land Surface Processes Experiment at Heihe River Basin,Western China)is given in the paper.The following basic subjects for land-surface process- es in arid areas are studied:(1)the general characteristics of the energy budget on ground surface in arid areas;(2)the parameterization of the land surface processes;(3)the interaction between oasis and its desert circumstances,a special phenomenon in arid areas.The analysis shows that the sensible heat flux in the surface energy budget is in the majority,and the latent heat flux may be neglected.The influence of atmospheric stratification stability on the turbulent transfer of energy and substance must be considered in parameterization of land surface processes in arid areas.The “cold island effect”phenomenon in oasis and the“humidity inversion”phenomenon in desert near oasis are the result of the interaction between them.The results would improve the understanding of land surface processes in arid areas.
文摘Ⅰ. INTRODUCTIONMany observational data have demonstrated that the sudden stratospheric warming (SSW) play an essential role in stratospheric circulation and its seasonal variation. And SSW is usually accompanied by anomalous amplification of planetary wavenumbers 1 and/or 2 in the troposphere. Matsuno firstly proposed from dynamical point that SSW re-
