Arid
DOI10.1007/s00703-009-0022-y
Turbulence characteristics in the atmospheric surface layer during summer monsoon of 1997 over a semi-arid location in India
Dharmaraj, T.1; Chinthalu, G. R.2; Raj, P. Ernest3
通讯作者Dharmaraj, T.
来源期刊METEOROLOGY AND ATMOSPHERIC PHYSICS
ISSN0177-7971
EISSN1436-5065
出版年2009
卷号104期号:1-2页码:113-123
英文摘要

A land surface processes experiment (LASPEX) was conducted in the semi-arid region of Northwest India during January 1997-February 1998. Analysis of turbulent components of wind and air temperature collected in the surface layer (SL) at Anand (22A degrees 35’N, 72A degrees 55’E) during the Indian summer monsoon season from June to September 1997 is presented. Turbulent fluctuation of wind components and air temperature observed at Anand varied as a function of terrain features and stability of the surface layer. Under neutral conditions, the standard deviation of vertical velocity (sigma (w) ) and temperature (sigma (T) ) were normalized using respective surface layer scaling parameter u (*) and T (*) which fitted the expressions sigma (w) /u (*) = 1.25 and sigma (T) /T (*) a parts per thousand 4. Micrometeorological spectrum of wind and temperature at 5 m above ground level (AGL) at Anand showed peaks at time scale of 1-3 min at the low-frequency end. The inertial sub-range characteristics (-2/3 slope) of the spectrum are exhibited mostly. However, in some occasions, slope of -1 denoting brown noise was depicted by the wind and temperature spectrum, which indicated anisotropy in turbulence.


类型Article
语种英语
国家India
收录类别SCI-E
WOS记录号WOS:000265919400010
WOS关键词CONVECTIVE BOUNDARY-LAYER ; SPECTRAL CHARACTERISTICS ; SOUTHWEST MONSOON ; HAPEX-SAHEL ; TEMPERATURE ; FLUX ; SCALE ; SIMILARITY ; VARIANCE ; TERRAIN
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/161932
作者单位1.Indian Inst Trop Meteorol, Atmospher Boundary Layer Grp, I & OT Div, Pune 411008, Maharashtra, India;
2.Indian Inst Trop Meteorol, FR Div, Pune 411008, Maharashtra, India;
3.Indian Inst Trop Meteorol, PM & A Div, Pune 411008, Maharashtra, India
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Dharmaraj, T.,Chinthalu, G. R.,Raj, P. Ernest. Turbulence characteristics in the atmospheric surface layer during summer monsoon of 1997 over a semi-arid location in India[J],2009,104(1-2):113-123.
APA Dharmaraj, T.,Chinthalu, G. R.,&Raj, P. Ernest.(2009).Turbulence characteristics in the atmospheric surface layer during summer monsoon of 1997 over a semi-arid location in India.METEOROLOGY AND ATMOSPHERIC PHYSICS,104(1-2),113-123.
MLA Dharmaraj, T.,et al."Turbulence characteristics in the atmospheric surface layer during summer monsoon of 1997 over a semi-arid location in India".METEOROLOGY AND ATMOSPHERIC PHYSICS 104.1-2(2009):113-123.
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