Abstract
In order to have some physical cognition to the typical gale formation of the southeast complex terrain in Qinghai-Xizang Plateau,five typical gale cases in winter at Dali National Climate Observatory are selected and general analysis is made based on conventional NCEP sounding data,WPR and PBL data.The results show that:(1) The gale cases have similarity circulation background.There are more than one high-pressure system on low latitude near 15°N,long wave and trough of low pressure appears in the high latitudes north of 35°N.(2) The meridional circulation shows vertical movement has the effect on the Dali gale,which mainly presented that vertical movement action of the altitude momentum.(3) Dali gale also has low-level jet background,which transported downwards influence by lower layer velocity rotation.(4) The downward transfer of sensible heat and latent heat provide thermal conditions which make the gale produce and maintain.(5) The WPR probe height and signal-to-noise ratio intensity can be used as one of the gale warning qualitative indicators in Dali.When sensible heat flux and latent heat flux present out of phase to each other,it also can be an indicator to the gale.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
