A DYNAMICAL MODEL OF OROGRAPHIC RAINFALL
نویسندگان
چکیده
منابع مشابه
A Dynamical Model of Orographic Rainfall
A dynamical model for orographic rainfall with particular reference to the Western Ghats is presented. The model assumes a saturated atmosphere with pseudo-adiabatic lapse rate and is based on linearized equations. The rainfall, as computed from the theoretical model, is in good agreement, both in intensity and in distribution, with the observed rainfall on the windward side of the mountain. Th...
متن کاملSimulating orographic rainfall
Simulating orographic rainfall with a limited-area, non-hydrostatic atmospheric model under idealized forcing A. Pathirana, S. Herath, and T. Yamada Environment and Sustainable Development Programme, United Nations University, Tokyo, Japan Department of Civil Engineering, Chuo University, Tokyo, Japan Received: 26 July 2004 – Accepted: 13 August 2004 – Published: 22 September 2004 Correspondenc...
متن کاملthe innovation of a statistical model to estimate dependable rainfall (dr) and develop it for determination and classification of drought and wet years of iran
آب حاصل از بارش منبع تأمین نیازهای بی شمار جانداران به ویژه انسان است و هرگونه کاهش در کم و کیف آن مستقیماً حیات موجودات زنده را تحت تأثیر منفی قرار می دهد. نوسان سال به سال بارش از ویژگی های اساسی و بسیار مهم بارش های سالانه ایران محسوب می شود که آثار زیان بار آن در تمام عرصه های اقتصادی، اجتماعی و حتی سیاسی- امنیتی به نحوی منعکس می شود. چون میزان آب ناشی از بارش یکی از مولفه های اصلی برنامه ...
15 صفحه اولThe influence of orographic Rossby and gravity waves on rainfall
Orography is known to influence winter precipitation in Asia and the Indo-Pacific Ocean by mechanically forcing winds, but the dynamics involved in the precipitation response are incompletely understood. This study investigates how two types of orographically forced oscillatory motions alter time-mean winds and precipitation. The quasi-geostrophic omega equation is used together with previous i...
متن کاملSimulating orographic rainfall with a limited-area, non-hydrostatic atmospheric model under idealized forcing
A modified version of an operational 3dimensional, non-hydrostatic, limited-area atmospheric model (MM5) was used to perform high-resolution, idealized simulations of the interaction of an infinitely long single ridge with a steady, lateral large-scale wind field. The effect of different mountain ridge dimensions, wind speeds and patterns and moisture profiles on the quantity and distribution o...
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ژورنال
عنوان ژورنال: Monthly Weather Review
سال: 1966
ISSN: 0027-0644,1520-0493
DOI: 10.1175/1520-0493(1966)094<0555:admoor>2.3.co;2