Variability of mixed-layer heights over the Indian Ocean and central Arabian Sea during INDOEX, IFP-99

被引：32
|
作者：
Subrahamanyam, DB [1 ]
Ramachandran, R
Sen Gupta, K
Mandal, TK
机构：
[1] Vikram Sarabhai Space Ctr, Space Phys Lab, Thiruvananthapuram 695022, Kerala, India
[2] Natl Phys Lab, New Delhi 110012, India
来源：
BOUNDARY-LAYER METEOROLOGY | 2003年 / 107卷 / 03期
关键词：
Indian Ocean Experiment (INDOEX); Inter-Tropical Convergence Zone (ITCZ); lifting condensation level (LCL); marine atmospheric boundary layer (MABL); mixed layer height; ocean-atmosphere interaction;
D O I：
10.1023/A:1022811512160
中图分类号：
P4 [大气科学（气象学）];
学科分类号：
0706 ; 070601 ;
摘要：
The upper air data collected from the balloon-borne GLASS Sondes launched from the Oceanic Research Vessel (ORV) Sagar Kanya during the Intensive Field Phase of the Indian Ocean experiment (INDOEX, IFP-99; SK-141 Cruise) are utilized for studying the variability in the mixed-layer heights observed over the western tropical Indian Ocean and central Arabian Sea. During the entire cruise, typical daytime convective mixed-layer heights (roughly corresponding to 1400 LT) obtained from theta(V) and q profiles, were observed to be in the range 200-900 m. Shallow mixed-layer heights are observed, in general, over the Inter-Tropical Convergence Zone (ITCZ). Over the central Arabian Sea, vertical profiles of theta(V) and q demonstrate a double mixed-layer structure of the marine atmospheric boundary layer (MABL), which gradually disappears close to the Indian coastline.
引用
收藏
页码：683 / 695
页数：13
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