Observation and numerical simulation of submesoscale motions within sea breeze over a tropical coastal site: A case study

被引：7
|
作者：
Rakesh, P. T. [1 ]
Sandeepan, B. S. [2 ]
Venkatesan, R. [1 ]
Baskaran, R. [1 ]
机构：
[1] Indira Gandhi Ctr Atom Res, HBNI, Kalpakkam, Tamil Nadu, India
[2] Texas A&M Univ Qatar, Mech Engn, Doha, Qatar
来源：
ATMOSPHERIC RESEARCH | 2017年 / 198卷
关键词：
Spectral analysis; WRF; Sonic anemometer; Horizontal convective rolls; Submesoscale; HORIZONTAL CONVECTIVE ROLLS; LARGE-EDDY SIMULATION; BOUNDARY-LAYER; GRAVITY-WAVES; WIND-SPEED; TURBULENCE; SPECTRA; ENERGY; RADAR; MODEL;
D O I：
10.1016/j.atmosres.2017.08.006
中图分类号：
P4 [大气科学（气象学）];
学科分类号：
0706 ; 070601 ;
摘要：
Submesoscale motions observed using SODAR and fast response anemometer data during sea breeze hours are studied. SODAR data indicates the presence of waves with period 30 min during the sea breeze hours. The observations are further verified by spectral analysis of sonic anemometer data using wavelet and lit I techniques. The analysis confirms that there are waves with periods of 30 min present throughout the sea breeze hours with varying intensity. The observed waves are simulated using high-resolution WRF-ARW model using the MYJ planetary'boundary layer scheme. The conditions of occurrence of such motions are briefly discussed. It is also found that these motions are caused by horizontal convective rolls within the sea breeze layer.
引用
收藏
页码：205 / 215
页数：11
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