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Variability in the surface wind direction at a coastal site of complex terrain
Volume 96 Issue 1 March 1987 pp 59-67
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https://www.ias.ac.in/article/fulltext/jess/096/01/0059-0067 -
Keywords
Inter-annual variability ;wind direction fluctuation ;gravity waves ;mesoscale eddies ;Pasquill stability ;turbulence -
Abstract
Variability in the standard deviation of surface wind direction (σθ), under different Pasquill stability regimes on diurnal, seasonal and interannual scales has been investigated making use of a 10-year data set collected at Visakhapatnam (17°42′ N., 82° 18′ E) during January, April, August and October for winter, pre-monsoon, monsoon and post-monsoon seasons respectively. The diurnal scale variability in σθ is more pronounced during day time than in night. The seasonal variability in σθ is only moderate around noon while relatively large fluctuations are noticed on inter-annual scale only during day time in January and August. The seasonal dispersion in σθ decreased from most unstable regime to most stable regime.
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Author Affiliations
- National Institute of Oceanography, Dona Paula - 403 004, India
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Dates
- Published
- March 1987
- Manuscript received
- 12 May 1986
- Manuscript revised
- 28 November 1986
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Journal of Earth System Science
Volume 132, 2023
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