全球暖化對熱帶季內振盪之影響: 濕靜能和濕穩定度分析;Impacts of Global Warming on Tropical Intra-Seasonal Oscillation: Moist Static Energy and Gross Moist Stability Analyses

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Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/78114

Title:	全球暖化對熱帶季內振盪之影響: 濕靜能和濕穩定度分析;Impacts of Global Warming on Tropical Intra-Seasonal Oscillation: Moist Static Energy and Gross Moist Stability Analyses
Authors:	余嘉裕;張瓊文
Contributors:	國立中央大學大氣科學學系
Keywords:	季內震盪;全球暖化;濕靜能收支;Intra-Seasonal Oscillation;Global Warming;Moist Static Energy Budget
Date:	2018-12-19
Issue Date:	2018-12-20 10:56:44 (UTC+8)
Publisher:	科技部
Abstract:	季內震盪（Intra-Seasonal Oscillation，ISO），又稱30~60 天震盪(30~60 day oscillation)或 Madden-Julian Oscillation（MJO），為熱帶對流層大氣最顯著的低頻、行星尺度氣候現象，和亞洲夏季季風期間豪大雨事件，以及西北太平洋地區颱風生成頻率有密切關係。本計畫擬使用大氣和海洋再分析資料以及氣候系統模式輸出資料，探討全球暖化對MJO 結構、強度、傳播速度之影響，並利用濕靜能收支、水氣收支、以及濕穩定度分析等定量診斷法，以了解造成此變化背後之可能物理(熱力與動力)機制。 ;“Intra-Seasonal Oscillation” (ISO), also known as the “30~60 Day Oscillation” or “Madden-Julian Oscillation” (MJO), is the dominant low-frequency planetary scale variability within the tropical troposphere. The MJO’s phase is closely related to the heavy precipitation events and Typhoon activity during the boreal summer season. In this project, atmospheric and oceanic reanalysis data, as well as the climate system model projections of future climate, are employed to study changes of MJO’s structure, intensity, and propagation under global warming. The moist static energy and moisture budgets, along with a diagnosis of moist stability, are used to clarify the physical (thermodynamic and dynamic) mechanisms behind such changes.
Relation:	財團法人國家實驗研究院科技政策研究與資訊中心
Appears in Collections:	[Department of Atmospheric Sciences] Research Project

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