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

页码：683 / 695

页数：13

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