کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4674137 1634242 2010 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evaluation of the boundary layer depth in semi-arid region of India
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علم هواشناسی
پیش نمایش صفحه اول مقاله
Evaluation of the boundary layer depth in semi-arid region of India
چکیده انگلیسی

The annual variation in Planetary Boundary Layer (PBL) height is determined from the profiles of conserved thermodynamic variables, i.e. virtual potential temperature θv, equivalent potential temperature θe and saturated equivalent potential temperature θes, using radiosonde data at Anand (23°35′N, 72°55′E, 45.1 m a.s.l.), India. Out of all the variables, the θv profile seems to provide the most reasonable estimate of the PBL height. This has been supplemented by T–Phi gram analysis for specific days. The analysis has been done for 00, 03, 06, 09 and 12 GMT for the 14th and 15th day of each month in the year 1997 based on LASPEX-97 data. In winters the height of boundary layer is very low due to subsidence and radiation cooling while heights in pre-monsoon months exhibit large variations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Dynamics of Atmospheres and Oceans - Volume 49, Issues 2–3, April 2010, Pages 96–107
نویسندگان
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