Using AMIE data to study cloud processes within the Madden-Julian Oscillation

Houze, Robert A.¹ 

[1]Univ. of Washington, Seattle, WA (United States). Dept. of Atmospheric Sciences

关键词: Tropical;    Convection;    Madden-Julian Oscillation (MJO);    AMIE;    Mesoscale;    Clouds;   

DOI  :  10.2172/1229886
RP-ID  :  DOE-UW--0008452
PID  :  OSTI ID: 1229886
Others  :  Other: ER-65460

学科分类：地球科学(综合)

美国|英语

来源: SciTech Connect

【 摘 要 】

This study uses AMIE data to show how the small clouds in the Madden-Julian Oscillation first organize into lines and other patterns, how they develop the first rainshowers, how those showers deposit cool air over the ocean surface, how this cool air spreads and triggers deeper convection, how the deep convection develops into mesoscale systems, how the mesoscale systems modify the heating profile through the depth of the troposphere, and how the development of the clouds responds to and interacts with large-scale waves circumnavigating the globe at upper levels, and how equatorial trapped waves at lower levels modulates the development of the cloud population. The techniques used to analyze the radar and sounding data collected in AMIE to achieve the above results are innovative, and to obtain more general results we have used regional modeling with a variety of cloud microphysical schemes in combination with the data analyses.