Based on the HEIFE 1988 and 1990 pilot observations,an analysis on the turbulence structure of Gobi surface layer,mainly on the similarity formulations of wind and temperature variances,the spectra and cospectra chara...Based on the HEIFE 1988 and 1990 pilot observations,an analysis on the turbulence structure of Gobi surface layer,mainly on the similarity formulations of wind and temperature variances,the spectra and cospectra characteristics,is presented.The phenomenon of downward water vapor flux over Gobi desert in daytime is confirmed in both observations,this and the well-known‘oasis effect’are two sides of a local mesoscale circulation.展开更多
Using a modified numerical model with higher resolution both horizontal and vertical directions,the surface fluxes of the sensible and latent heat in the HEIFE(Heihe Field Experiment)region were diagnosed.Based on sta...Using a modified numerical model with higher resolution both horizontal and vertical directions,the surface fluxes of the sensible and latent heat in the HEIFE(Heihe Field Experiment)region were diagnosed.Based on statistical analy- sis for the diagnostic fluxes,the representativeness and location of observational stations in the HEIFE region were inves- tigated,a concrete scheme for setting up the observational stations in the HEIFE region with different underlying sur- faces are obtained and the general principle of choosing the locations of observational stations with better representativeness is proposed.展开更多
基金The HEIFE program is supported by National Natural Science Foundation of China,the Chinese Academy of Sciences,the Special Committee for WCRP of the Geodesy Council,Japanese Ministry of Education,Science and Culture.
文摘Based on the HEIFE 1988 and 1990 pilot observations,an analysis on the turbulence structure of Gobi surface layer,mainly on the similarity formulations of wind and temperature variances,the spectra and cospectra characteristics,is presented.The phenomenon of downward water vapor flux over Gobi desert in daytime is confirmed in both observations,this and the well-known‘oasis effect’are two sides of a local mesoscale circulation.
文摘Using a modified numerical model with higher resolution both horizontal and vertical directions,the surface fluxes of the sensible and latent heat in the HEIFE(Heihe Field Experiment)region were diagnosed.Based on statistical analy- sis for the diagnostic fluxes,the representativeness and location of observational stations in the HEIFE region were inves- tigated,a concrete scheme for setting up the observational stations in the HEIFE region with different underlying sur- faces are obtained and the general principle of choosing the locations of observational stations with better representativeness is proposed.
