El Nino and the Tropical Maximum Sea Surface Temperature (SST)

厄尔尼诺现象和热带最高海面温度（SST）

• 批准号: 9912434
• 负责人: De-Zheng Sun
• 金额: $ 19.99万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-06-01 至 2004-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9912434&HistoricalAwards=false
• 关键词: El; Nino; Tropical; Maximum; Sea

The planned work will examine the reasons why there exists an upper bound for tropical Sea Surface Temperature (SST) in the western Pacific. The role of El Nino in regulating the SST will be studied. The hypothesis to be tested is the following: once the tropical maximum SST is sufficiently warm to sustain El Nino, and the coupled system finds itself in an oscillatory state, it is El Nino that regulates the tropical maximum SST. The PI will test his hypothesis using two coupled models, a simple coupled model for the tropical Pacific region and the NCAR CSM TOGA model (NCAR CCM3 coupled to a fine resolution tropical Pacific basin model). The work will also address the issue of whether El Ninos will become more energetic in response to global warming. The work is important because it will increase our understanding of interaction and feedback mechanisms involving El Nino and tropical SSTs.

计划中的工作将研究西太平洋热带海表温度（SST）存在上限的原因。将研究厄尔尼诺在调节SST方面的作用。待检验的假设如下：一旦热带最高SST足够温暖，足以维持厄尔尼诺，并且耦合系统发现自己处于振荡状态，则是厄尔尼诺调节热带最高SST。PI将使用两个耦合模型来检验他的假设，一个是热带太平洋地区的简单耦合模型，另一个是NCAR CSM TOGA模型（NCAR CCM3耦合到一个高分辨率热带太平洋海盆模型）。这项工作还将解决厄尔尼诺现象是否会在应对全球变暖时变得更加活跃的问题。这项工作很重要，因为它将增加我们对厄尔尼诺和热带SST相互作用和反馈机制的理解。