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The Madden Julian Oscillation and the Maritime Continent

马登朱利安振荡和海洋大陆

基本信息

批准号：
1543932
负责人：
Shuguang Wang
金额：
$ 69.29万
依托单位：
Columbia University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2016
资助国家：
美国
起止时间：
2016-04-01 至 2021-03-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1543932&HistoricalAwards=false
关键词：
Madden Julian Oscillation Maritime Continent

项目摘要

The Madden-Julian Oscillation (MJO) is a weather disturbance that emanates in the tropics but influences weather globally. This project will improve both the understanding and ability to predict the weather disturbances associated with the MJO. The focus is on how the disturbances move from west to east across the Maritime Continent, which is the region along the equator around and including Indonesia. The project will seek to understand how the presence of the Indonesian islands, as well as the mountains on those islands, influence the motion of the weather disturbances: what causes the disturbances either to move across the islands or not do so, and how that motion can be forecast better. The project will do this two ways. First, idealized sensitivity experiments will be performed using models. For example, the islands will be removed entirely, or retained with mountains removed. Second, weather forecast simulations which have already been carried out by weather prediction centers around the world will be analyzed. The project team will examine forecasts that compared well with what occurred, such as those in which the weather disturbances moved eastward across the Maritime Continent.The project will improve understanding of the MJO. On a more practical level, the project will lead to improved long-range weather forecasts. A graduate student will also be trained. The results of this project will be communicated to the public through public lectures, blogs, and op-ed pieces.

Madden-Julian Oscillation（MJO）是一种在热带地区产生但影响全球天气的天气扰动。该项目将提高对与MJO相关的天气扰动的理解和预测能力。重点是扰动如何从西向东穿过海洋大陆，这是沿着赤道围绕并包括印度尼西亚的地区。该项目将设法了解印度尼西亚岛屿的存在以及这些岛屿上的山脉如何影响天气扰动的运动：是什么原因导致扰动穿越岛屿或不穿越岛屿，以及如何更好地预测这种运动。该项目将以两种方式做到这一点。首先，将使用模型进行理想化的灵敏度实验。例如，岛屿将被完全移除，或保留山脉。其次，分析世界各地的天气预报中心已经进行的天气预报模拟。该项目团队将检查与实际情况相比较的预测，例如天气扰动向东移动穿过海洋大陆的预测。该项目将提高对MJO的理解。在更实际的层面上，该项目将改善长期天气预报。还将培训一名研究生。该项目的成果将通过公开讲座、博客和专栏文章向公众传达。