• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >Tropical tropospheric ozone: New methods, comparisons, and model evaluation of controlling processes.
【24h】

Tropical tropospheric ozone: New methods, comparisons, and model evaluation of controlling processes.

机译：热带对流层臭氧：控制过程的新方法，新方法和模型评估。

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 CCP technique is created with zonal sine fitting to the stratospheric ozone calculated from TOMS total column ozone above high-altitude clouds, which are identified with both 380nm reflectivity and THIR cloud top pressure, or only 380nm reflectivity with the aid of a lowpass frequency filter if no THIR observations are available. The SAGECCP method is the same as the CCP technique except that integrated SAGE stratospheric ozone is added into the stratospheric ozone calculated from cloudy points in CCP.; The six TOMS-driven methods display RMS difference of 4–12DU in the Pacific Ocean, and RMS difference of 6–18 DU in the Atlantic Ocean. Scatter plots and Taylor Diagrams (a method that indicates the correlation coefficient, standard deviation, and RMS errors of two time series in one single diagram) of the six TOMS-driven methods indicate that their structures are more consistent than their absolute magnitudes are. CCP, CCD, and MR indicate consistent seasonal variances and reasonable responses to ENSO in the Pacific Ocean and reasonable responses to QBO in the Atlantic Ocean. SHADOZ, DIAL, GOME, and GEOS-CHEM simulation tropospheric ozone are compared to six TOMS-driven methods as well.; The mechanism for the Tropical Atlantic Paradox (TAP) is identified as a combination resulting from meteorological dynamics, biomass burning, lightning NOx, PAN, and cross-equator transport. The vertical convection above tropical Africa and South America, and the anticyclone and strong subsidence above the southern Atlantic create an ozone accumulation environment in the tropical southern Atlantic. Biomass burning provides a large number of ozone precursors, and those precursors are passively transported by dynamics. Lightning ozone enhancement contributes more ozone to the southern Atlantic than to northern Africa in December, January, and February. PAN contributes and extends the tropospheric ozone enhancement in the southern Atlantic.
机译：CCP技术是通过对高空云上TOMS总柱臭氧计算的平流层臭氧进行正弦拟合创建的，高空云上的TOMS总柱臭氧被确定为具有380nm反射率和THIR云顶压力，或者借助低通滤波器获得的仅380nm反射率如果没有可用的观察结果。 SAGECCP方法与CCP技术相同，不同之处在于从CCP中的浊点计算出的平流层臭氧中加入了SAGE平流层综合臭氧。六种TOMS驱动的方法在太平洋显示RMS差异为4–12 DU，在大西洋显示RMS差异为6–18 DU。六种TOMS驱动的方法的散点图和泰勒图（一种方法可以在一张图中表示两个时间序列的相关系数，标准偏差和RMS误差），表明它们的结构比其绝对大小更为一致。 CCP，CCD和MR表示一致的季节变化以及太平洋对ENSO的合理响应以及大西洋对QBO的合理响应。 SHADOZ，DIAL，GOME和GEOS-CHEM模拟对流层臭氧也与6种TOMS驱动的方法进行了比较。热带大西洋悖论（TAP）的机制被认为是气象动力学，生物质燃烧，闪电NOx，PAN和跨赤道运输的综合结果。热带非洲和南美上方的垂直对流，以及南大西洋上方的反气旋和强沉降使热带南部大西洋形成了臭氧积累环境。生物质燃烧提供了大量的臭氧前体，而这些前体是通过动力学被动运输的。在12月，1月和2月，闪电臭氧增强对南部大西洋的贡献要大于对北非的臭氧贡献。 PAN有助于并扩展了南大西洋对流层臭氧的增强。

著录项

  • 作者

    Sun, Da.;

  • 作者单位

    The University of Alabama in Huntsville.;

  • 授予单位 The University of Alabama in Huntsville.;
  • 学科 Physics Atmospheric Science.; Environmental Sciences.
  • 学位 Ph.D.
  • 年度 2003
  • 页码 178 p.
  • 总页数 178
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 大气科学（气象学）;环境科学基础理论;
  • 关键词

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