...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Atmosphere-ocean >Response of the Tropical Indian Ocean to Greenhouse Gases and Aerosol Forcing in the GFDL CM3 Coupled Climate Model
【24h】

Response of the Tropical Indian Ocean to Greenhouse Gases and Aerosol Forcing in the GFDL CM3 Coupled Climate Model

机译：GFDL CM3耦合气候模型中热带印度洋对温室气体和气溶胶强迫的响应

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The response of the tropical Indian Ocean (TIO) to greenhouse gases (GHGs) and aerosols are investigated based on historical single-forcing and all-forcing simulations using the Geophysical Fluid Dynamics Laboratory Climate Model, version 3 (GFDL CM3). Results reveal a positive Indian Ocean Dipole (pIOD)-like pattern in GHG forcing but a negative Indian Ocean Dipole (nIOD)-like pattern in aerosol forcing. The GHG-induced pIOD-like pattern features less (more) sea surface temperature (SST) warming over the southeastern (western) TIO, accompanied by equatorial easterly anomalies, as well as a shallower thermocline off Sumatra. The aerosol-induced nIOD-like pattern displays the reverse features, characterized by less (more) SST cooling over the southeastern (western) TIO, anomalous equatorial westerlies, and a deeper thermocline off Sumatra. Although the aerosol-induced pattern appears to resemble a reversal of the GHG-induced pattern, there is a strong asymmetry in the SST changes over the southeastern TIO, where the cooling responding to aerosol forcing exceeds the warming in response to GHG forcing, and a negative SST residual is thus produced. A mixed-layer heat budget analysis suggests that the negative SST residual results mainly from asymmetric responses of shortwave radiation, zonal advection, and diffusion to GHGs and aerosols. For comparison, the formation processes for the negative SST skewness over the southeastern TIO between the internal pIOD and nIOD are also discussed.
机译：基于历史单强迫和全强迫模拟，使用地球物理流体动力学实验室气候模型第3版（GFDL CM3），研究了热带印度洋（TIO）对温室气体（GHGs）和气溶胶的响应。结果显示，在强迫温室气体中，印度洋偶极子（pIOD）呈正态，而在气溶胶强迫中印度洋偶极子（nIOD）呈负态。温室气体诱导的类似pIOD的模式的特征是东南（西部）TIO的海面温度（SST）变少（更多），伴有赤道东风异常，以及苏门答腊岛外较浅的跃层。气溶胶诱导的类似nIOD的模式显示出相反的特征，其特征是东南（西部）TIO上的SST冷却减少（更多），赤道西风异常和苏门答腊外较深的跃层。尽管气溶胶引起的模式看起来与温室气体引起的模式的逆转相似，但东南部TIO的SST变化存在强烈的不对称性，那里对气溶胶强迫的冷却作用超过了对温室气体强迫的加热作用，并且因此产生负的SST残留。混合层热收支分析表明，SST残留为负主要是由于短波辐射，纬向平流以及向温室气体和气溶胶扩散的不对称响应。为了比较，还讨论了内部pIOD和nIOD之间东南TIO上负SST偏斜的形成过程。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号