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Surface and tropospheric ozone trends in the Southern Hemisphere since 1990: possible linkages to poleward expansion of the hadley circulation

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Science Bulletin 2019年第6期64卷 400-409页

作者： Xiao Lu Lin Zhang Yuanhong Zhao Daniel J.Jacob Yongyun Hu Lu Hu Meng Gao Xiong Liu Irina Petropavlovskikh Audra McClure-Begley Richard Querel Laboratory for Climate and Ocean-Atmosphere Studies Department of Atmospheric and Oceanic Sciences School of Physics Peking University School of Engineering and Applied Sciences Harvard University Department of Earth and Planetary Science Harvard University Department of Chemistry and Biochemistry University of Montana Harvard-Smithsonian Center for Astrophysics Cooperative Institute for Research in Environmental Sciences University of Colorado NOAA Earth System Research Laboratory National Institute of Water and Atmospheric Research (NIWA)

Increases in free tropospheric ozone over the past two decades are mainly in the Northern Hemisphere that have been widely documented,while ozone trends in the Southern Hemisphere(SH)remain largely *** we first show that in-situ and satellite observations document increases of tropospheric ozone in the SH over 1990–*** then use a global chemical transport model to diagnose drivers of these *** find that increases of anthropogenic emissions(including methane)are not the most significant ***,we explain the trend as due to changes in meteorology,and particularly in transport *** propose a possible linkage of the ozone increases to meridional transport pattern shifts driven by poleward expansion of the SH hadley circulation(SHHC).The SHHC poleward expansion allows more downward transport of ozone from the stratosphere to the troposphere at higher latitudes,and also enhances tropospheric ozone production through stronger lifting of tropical ozone precursors to the upper *** together may lead to increasing tropospheric ozone in the extratropical SH,particularly in the middle/upper troposphere and in austral *** expansion of the hadley circulation is partly driven by greenhouse warming,and the associated increase in tropospheric ozone potentially provides a positive climate feedback amplifying the warming that merits further quantification.

关键词： Tropospheric ozone Ozone trend Southern Hemisphere hadley circulation poleward expansion Widening of the tropics

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Inertial theory of the mean hadley circulation under the condition of nonstatic equilibrium

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Science China Earth Sciences 2006年第5期49卷 546-553页

作者： CHAO Jiping1 & LIU Fei2,3 1. National Marine Environmental Forecasting Center, Beijing 100081, China 2. Key Laboratory Regional Climate-Environment for Temperate East Asia, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China 3. Graduate University of Chinese Academy of Sciences, Beijing 100049, China 1. National Marine Environmental Forecasting Center Beijing 100081 China 2. Key Laboratory Regional Climate-Environment for Temperate East Asia Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China 3. Graduate University of Chinese Academy of Sciences Beijing 100049 China

Tropical atmosphere is divided into two layers, the layer near the ground is the planet boundary layer, where the motion is linear, if the radiation equilibrium temperature is given at the top of the boundary layer, the vertical motion there can be obtained. It is the non-viscous ideal atmos- pheric layer above the boundary one, where the motion is nonlinear. After getting the conservation laws of angular momentum, potential temperature and potential vortex, the inertial theory of the hadley circulation driven by the vertical motion of the boundary layer is established, followed by sev- eral examples of its application.

关键词： hadley circulation, inertial theory, conservation laws of angular momentum, potential temperature and potential vortex.

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Recent Strengthening of the Regional hadley Circulation over the Western Pacific during Boreal Spring

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Advances in Atmospheric Sciences 2019年第11期36卷 1251-1264页

作者： Ruping HUANG Shangfeng CHEN Wen CHEN Peng HU Bin YU Guangzhou Institute of Tropical and Marine Meteorology China Meteorological Administration Guangzhou 510080 China Center for Monsoon System Research Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China University of Chinese Academy of Sciences Beijing 100049 China Climate Research Division Environment and Climate Change Canada Toronto ON M3H 5T4 Canada

Previous studies suggested that there are large discrepancies in the intensity trend of the zonally averaged hadley circulation (ZAHC) among different reanalyses. As the land, ocean, and topography are not evenly distributed, the ZAHC may mask the regional variability. Changes in the regional HC have important implications for regional climate change. Here, we detect the long-term trend of the boreal spring regional hadley circulation intensity over the western Pacific (WPHC) since 1979 in both hemispheres using six reanalysis datasets. Unlike the ZAHC, we find that the trend of the spring WPHC intensity is consistent among various reanalysis datasets. All reanalyses show pronounced strengthening trends for the WPHC in both the Northern and Southern Hemisphere, which may be partly attributable to the robust warming trends of sea surface temperature in the tropical western Pacific. The result could improve our understanding of hadley circulation variability at the regional scale and has implications for regional climate changes.

关键词： regional hadley circulation western Pacific long-term trend boreal spring

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hadley一家的智能住宅

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数字社区&智能家居 2009年第3期 88-89页

作者： Lisa Montgomery Maggie

Had Jey—家购买了这座新的6400平方英尺规格的房子时,大多数的智能电子系统已经准备就绪。灌溉系统已安装完毕,安全防范系统与分布式音频系统的线路也已安装到位,加热与冷却系统也已就位。这是家庭的一个最典型例子,这些系统都可以进... 详细信息

Had Jey—家购买了这座新的6400平方英尺规格的房子时,大多数的智能电子系统已经准备就绪。灌溉系统已安装完毕,安全防范系统与分布式音频系统的线路也已安装到位,加热与冷却系统也已就位。这是家庭的一个最典型例子,这些系统都可以进行独立运做。灌溉系统可通过车库中的控制面板进行控制,安全防范系统可以通过键盘进行布撤防等等。对于hadley—家来说,这种安排似平有些陈旧和烦琐。因为,他们之前居住的房屋便有了自动化智

关键词：背景音乐系统电视媒体电信 hadley 触摸面板

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海面温度异常对低纬度hadley环流影响的数值试验

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应用气象学报 1986年第1期 9-17页

作者：张光智郑庆林气象科学研究院天气气候研究所

应用北半球多层初始方程谱模式,在非绝热过程下,取不同的海面温度作数值试验,分别积分24—96小时,分析110°E 季风通道上的垂直环流变化。结果表明,本模式能够模拟出一次低纬度 hadley 环流的转换过程。偏高海温有抑制冷空气南下、维持 ... 详细信息

应用北半球多层初始方程谱模式,在非绝热过程下,取不同的海面温度作数值试验,分别积分24—96小时,分析110°E 季风通道上的垂直环流变化。结果表明,本模式能够模拟出一次低纬度 hadley 环流的转换过程。偏高海温有抑制冷空气南下、维持 hadley 反环流的作用;偏低海温有利于冷空气南下,有助于向hadley 正环流的转变。

关键词：海面温度垂直环流 hadley 海温水温冷空气低纬度低纬数值试验非绝热过程南风气流数值模拟试验谱模式数值预报模式拖曳系数

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WindSat海表面温度产品与hadley中心海温资料对比分析

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中国科技信息 2016年第12期 55-56页

作者：朱恩泽石汉青张雷解放军理工大学气象海洋学院

基于hadley中心HadISST海温资料对2015年WindSat海温产品进行了对比验证。结果表明,WindSat SST与HadISST之间的平均偏差为0.04℃,标准偏差为0.61℃。夏季和冬季WindSat SST的误差较大,而春季和秋季误差相对较小。

关键词：海表面温度 SST 海温水温 WindSat hadley 对比分析

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Three-dimensional decomposition method of global atmospheric circulation

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Science China Earth Sciences 2008年第3期51卷 386-402页

作者： LIU HaiTao1,2,3, HU ShuJuan4, XU Ming5 & CHOU JiFan6,7 1 State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China 2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China 3 Beijing Climate Center, Beijing 100089, China 4 Department of Mathematics, Lanzhou University, Lanzhou 730000, China 5 Shanghai Typhoon Institute, Shanghai 200030, China 6 Department of Atmospheric Sciences, Lanzhou University, Lanzhou 730000, China 7 China Meteorological Administration Training Center, Beijing 100089, China 1. State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China 2. Graduate University of Chinese Academy of Sciences Beijing 100049 China 3. Beijing Climate Center Beijing 100089 China 4. Department of Mathematics Lanzhou University Lanzhou 730000 China 5. Shanghai Typhoon Institute Shanghai 200030 China 6. Department of Atmospheric Sciences Lanzhou University Lanzhou 730000 China 7. China Meteorological Administration Training Center Beijing 100089 China

By adopting the idea of three-dimensional Walker, hadley and Rossby stream functions, the global atmospheric circulation can be considered as the sum of three stream functions from a global perspective. Therefore, a m... 详细信息

关键词： three-dimensional decomposition of the global atmospheric circulation generalized Walker hadley and Rossby stream functions existence and uniqueness vertical motion

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AN ENSO-LIKE OSCILLATION SYSTEM

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Chinese Journal of Oceanology and Limnology 1999年第4期17卷 331-337,315页

作者：王启刘秦玉秦曾灏 Institute of Physical Oceanography Ocean University of Qingdao Qingdao China Shanghai Typhoon Institute Shanghai China

This paper presents the following data based hypothesis on the mechanism of the El Nio Southern Oscillation (ENSO) cycle: during the warm phase of ENSO, there are westerly wind anomalies over the equatorial west central Pacific and the sea surface temperature (SST) in the equatorial east central Pacific is higher. The latter can strengthen hadley circulation, and the west component of the hadley circulation anomaly may cause southerly monsoon circulation. When the monsoon is a southerly anomaly, SST in the South China Sea (SCS) becomes higher. When the SCS gets warmer, the atmospheric convection will move to it, and then easterly anomaly wind will occur over the western Pacific. A cycle is completed. This hypothesis was used to construct an analogical oscillator model that produces ENSO like oscillations. The negative feedback mechanism of the hypothesis is SST anomaly in the SCS. This negative feedback mechanism is quite different from others proposed before, is not within the Pacific and does not depend on ocean waves and their boundary reflection.

关键词： ENSO hadley circulation monsoon South China Sea

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