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Inverse correlation between ancient winter and summer monsoons in East Asia?

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Chinese Science Bulletin 2009年第20期54卷 3760-3767页

作者： zhou botao {2. ping national climate {2. China Meteorological Administration Beijing 100081 China national meteorological Information {2. China Meteorological Administration Beijing 100081 China

There is a scientific debate on the relationship between ancient winter and summer monsoons in East *** scholars think that East Asian winter and summer monsoons are anti-correlated,and others think *** this reason,this study is motivated to assess their linkage from the paleoclimate simulation perspective,through analyzing the Last Glacial Maximum(LGM) and mid-Holocene(MH) climate simulated by CCSM3 *** to the present climate,the Aleutian low is found to be deepened and the East Asian winter monsoon(EAWM) is stronger during the LGM *** Pacific high in summer is noticed to be weakened and the East Asian summer monsoon(EASM) is weaker at the *** the MH,the Aleutian low and the Asian high in winter are intensified,and the Asian low and the Pacific high in summer are enhanced,indicating that the EAWM and EASM are both stronger than ***,the EAWM is not always negatively correlated to the *** relationship may be different at different geological *** can be obtained at least from the numerical simulation results that the EAWM and the EASM is negatively correlated during the cooling period,while positively correlated during the warming period.

关键词：东亚冬季风夏季季风东亚季风末次盛冰期东亚夏季风古气候模拟模式模拟中全新世

Linkage between the Asian-Pacific Oscillation and the sea surface temperature in the North Pacific

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Chinese Science Bulletin 2010年第12期55卷 1193-1198页

作者： zhou botao {2. ping CUI Xuan national climate {2. China Meteorological Administration Beijing 100081 China national meteorological Information {2. China Meteorological Administration Beijing 100081 China national meteorological {2. China Meteorological Administration Beijing 100081 China

The linkage between the Asian-Pacific Oscillation (APO) and the sea surface temperature (SST) in the North Pacific during the summertime (June-August) is preliminarily investigated through an analysis of observed *** is found that APO is significantly and positively correlated to the North Pacific SST,with the correlation coefficient being 0.58 on the interannual timescale during the period 1954-2.03,which suggests that a strong (weak) APO corresponds to high (low) SST in the North *** in-phase relationship is well supported by the dynamic and thermal conditions in association with the APO *** APO is in the positive phase,the East Asian westerly jet in the upper troposphere is weakened,and the anomalous anticyclonic circulation prevails in the low-troposphere over the North ***,the negative anomaly of the sensible and latent heat fluxes is predominated in the North Pacific,indicating ocean gets heat flux from the ***,warm water advection northward is strengthened in the North *** of these provide beneficial conditions to warm the North Pacific SST,and thus the SST is increased in this region,and vice versa.

关键词：北太平洋海表温度亚洲涛动太平洋海温年际时间尺度潜热通量海表面温度

Interannual Variability of Tibetan Surface Ground Temperature and its Relationship to Global climate

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Interannual Variability of Tibetan Surface Ground Temperatur...

中国气象学会2.03年年会

作者： zhao ping Frank Schmidt Chen Longxun {2. Xiuji ( Chinese Academy of meteorological Sciences,beijing 100081,P.R.china meteorological Institute of Munich University,Germany)

＜正＞ 1 Introduction The variability of Asian monsoon influences directly on local temperature and precipitation,andis also related with ENSO. The heating roles of the Eurasian continent during spring and summermay be a major modifier of the northern summer monsoon system. In these studies, the TP thermalcondition is usually considered as a part of Eurasia. However, ground temperature is greatly affected

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气溶胶对降水影响的现象和机制

Science Bulletin 2024年第10期69卷 1569-1580页

作者：赵传峰孙悦杨杰李杰峰周月杨以坤范昊赵辛 Department of Atmospheric and Oceanic Sciences School of Physicsand China Meteorological Administration Tornado Key LaboratoryPeking UniversityBeijing 100871China Institute of Carbon Neutrality Peking UniversityBeijing 100871China Faculty of Geographical Science Beijing Normal UniversityBeijing 100875China School of Environment Beijing Normal UniversityBeijing 100875China

Aerosols greatly influence precipitation characteristics,thereby impacting the regional climate and human *** an indispensable factor for cloud formation and a critical radiation budget regulator,aerosols can affect precipitation intensity,frequency,geographical distribution,area,and ***,discrepancies exist among current studies due to aerosol properties,precipitation types,the vertical location of aerosols and {2. *** development of technology has driven advances in current research,but understanding the aerosol effects on precipitation remain complex and *** paper revolves around the following topics from the two perspectives of Aerosol-Radiation Interaction(ARI)and Aerosol-Cloud Interaction(ACI):(1)the influence of different vertical locations of absorbing/scattering aerosols on the atmospheric thermal structure;(2.the fundamental theories of ARI reducing surface wind speed,redistributing water vapour and energy,and then modulating precipitation intensity;(3)different aerosol types(absorbing versus scattering)and aerosol concentrations causing different precipitation diurnal and weekly variations;(4)microphysical processes(cloud water competition,invigoration effect,and evaporation cooling)and observational evidence of different effects of aerosols on precipitation intensity,including enhancing,inhibiting,and transitional effects from enhancement to suppression;and(5)how meteorology,water vapor and dynamics influencing the effect of ACI and ARI on *** addition,this review lists the existing issues and future research directions for attaining a more comprehensive understanding of aerosol effects on ***,this review advances our understanding of aerosol effects on precipitation and could guide the improvement of weather and climate models to predict complex aerosol-precipitation interactions more accurately.

关键词： Aerosol Precipitation Aerosol-Radiation Interaction(ARI) Aerosol-Cloud Interaction(ACI) Mechanism

冬季非均匀增温与积雪及光周期变化对温带植被物候影响研究进展

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地理科学进展 2024年第8期43卷 1666-1680页

作者：王笑影周玉科李荣平贾庆宇蔡福温日红谢艳兵赵先丽邹旭东汪宏宇中国气象局沈阳大气环境研究所沈阳110166 中国科学院地理科学与资源研究所北京100101

气候变化速率在日尺度和季节尺度上表现出差异性,并且呈现出非均匀增温的特点。特别是在北半球中高纬度地区,夜间的升温速度超过白天,而冬季的升温速度超过夏季。准确评估非均匀增温对陆地生态系统结构和功能的影响,是全球变化研究领域... 详细信息

气候变化速率在日尺度和季节尺度上表现出差异性,并且呈现出非均匀增温的特点。特别是在北半球中高纬度地区,夜间的升温速度超过白天,而冬季的升温速度超过夏季。准确评估非均匀增温对陆地生态系统结构和功能的影响,是全球变化研究领域一项重大挑战。论文通过文献综述,系统地分析了冬季非均匀增温、积雪变化以及光周期对春季植被物候特征的影响,同时探讨了这种影响存在的物种特异性、地理位置异质性以及季节补偿效应。研究认为,当前对非均匀增温影响的研究在观测实验能力方面存在明显不足,对光照、温度和水分耦合作用的理解和认识尚不充分,且模型模拟能力有待提高。因此,未来研究应重视开发新型观测和实验方法,例如精心设计控制实验,以深入探究温带地区光照、温度和水分对植物物候的潜在调控机制。这将有助于加强对非均匀增温影响机制的认识和理解,并将这些影响因素纳入模型模拟中,从而提升对季节性气候变化如何塑造植被动态过程的认知和理解。

关键词：非均匀增温积雪光周期冬季植被物候

The Tibetan Plateau Surface–Atmosphere Coupling System and Its Weather and climate Effects: The Third Tibetan Plateau Atmospheric Science Experiment

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Journal of meteorological Research 2019年第3期33卷 375-399页

作者： ping zhao Yueqing LI Xueliang GUO Xiangde XU Yimin LIU Shihao TANG Wenming XIAO Chunxiang SHI Yaoming MA Xing YU Huizhi LIU La JIA Yun CHEN Yanju LIU Jian LI Dabiao LUO Yunchang CAO Xiangdong ZHENG Junming CHEN An XIAO Fang YUAN Donghui CHEN Yang PANG Zhiqun HU Shengjun ZHANG Lixin DONG Juyang HU Shuai HAN Xiuji {2. State Key laboratory of Severe Weather Chinese Academy of Meteorological Sciences China Meteorological Administration Beijing 100081 national climate {2. China Meteorological Administration Beijing 100081 meteorological Observation center China Meteorological Administration Beijing 100081 Jiangxi meteorological Observatory Nanchang 330096 Chengdu Institute of Plateau Meteorology of the china meteorological administration Chengdu 610072 Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 national Satellite meteorological {2. China Meteorological Administration Beijing 100081 national meteorological Information {2. China Meteorological Administration Beijing 100081 Institute of Tibetan Plateau Research Chinese Academy of Sciences Beijing 100101 meteorological Institute of Shaanxi Province Xi'an 710014 meteorological Observatory of Tibet Autonomous Region Lhasa 850000 national meteorological {2.y china meteorological administration Beijing 100081

The Tibetan Plateau(TP) is a key area affecting forecasts of weather and climate in china and occurrences of extreme weather and climate events over the world. The china meteorological administration, the national Natural Science Foundation of china, and the Chinese Academy of Sciences jointly initiated the Third Tibetan Plateau Atmospheric Science Experiment(TIPEX-Ⅲ) in 2.13, with an 8–10-yr implementation plan. Since its preliminary field measurements conducted in 2.13, routine automatic sounding systems have been deployed at Shiquanhe, Gaize, and Shenzha stations in western TP, where no routine sounding observations were available previously. The observational networks for soil temperature and soil moisture in the central and western TP have also been established. Meanwhile, the plateau-scale and regional-scale boundary layer observations, cloud–precipitation microphysical observations with multiple radars and aircraft campaigns, and tropospheric–stratospheric air composition observations at multiple sites, were performed. The results so far show that the turbulent heat exchange coefficient and sensible heat flux are remarkably lower than the earlier estimations at grassland, meadow, and bare soil surfaces of the central and western TP. Climatologically, cumulus clouds over the main body of the TP might develop locally instead of originating from the cumulus clouds that propagate northward from South Asia. The TIPEX-Ⅲ observations up to now also reveal diurnal variations, macro-and microphysical characteristics, and water-phase transition mechanisms, of cumulus clouds at Naqu station. Moreover, TIPEX-Ⅲ related studies have proposed a maintenance mechanism responsible for the Asian "atmospheric water tower" and demonstrated the effects of the TP heating anomalies on African, Asian, and North American climates. Additionally, numerical modeling studies show that the Γ distribution of raindrop size is more suitable for depicting the TP raindrop characteristics compar

关键词： Tibetan Plateau field observation data processing weather and climate numerical forecasting

中国西部地区暴雨过程高、低空急流耦合影响机制的个例研究

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大气科学 2023年第6期47卷 1907-1924页

作者：段海霞姚秀萍刘新伟周甘霖赵采玲中国气象局兰州干旱气象研究所甘肃省干旱气候变化与减灾重点实验室/中国气象局干旱气候变化与减灾重点开放实验室兰州730020 中国气象局气象干部培训学院北京100081 兰州大学兰州730000

高、低空急流对中国暴雨有重要影响,但是其对中国西部地区暴雨影响的深入研究缺乏,其耦合过程及机制的研究更少。本文利用常规观测、加密自动气象站降水资料以及NCEP/NCAR再分析资料,借助数值模拟,研究高、低空急流耦合效应对2.18年7月8... 详细信息

高、低空急流对中国暴雨有重要影响,但是其对中国西部地区暴雨影响的深入研究缺乏,其耦合过程及机制的研究更少。本文利用常规观测、加密自动气象站降水资料以及NCEP/NCAR再分析资料,借助数值模拟,研究高、低空急流耦合效应对2.18年7月8~11日中国西部一次特大暴雨过程的影响及其发生机制。结果表明:(1)此次暴雨过程是在中高纬东移冷涡低槽与副高西伸北抬的有利背景下产生的,高、低空急流耦合有利于暴雨的发展。(2.高、低空急流耦合主要通过次级环流和动量下传得以实现:高空急流加强高层辐散下沉,同时低空急流加强低层辐合上升,促使高、低空急流之间形成次级环流,其下沉支引导高层高值位涡向下层传播,形成动量下传,与中层高值位涡区相衔接,高、低空急流在中层耦合。(3)高、低空急流的耦合,加强了中层不稳定能量的聚集,促使低空急流加强发展;进而增强了辐合强度,促使上升运动加强,从而增强了降水强度。通过增减高、低空风速的敏感性试验发现,高低层风速的增减能够改变中低层最大位涡的增减,其基本对应了强降水时段,且位涡值越大降水强度越强。(4)高、低空急流强度共同对降水强度有重要影响:数值模式敏感试验表明,当同时增加高低空急流强度,降水强度将增强,而仅增加高空或低空急流,降水强度变化不大,但减弱高空或低空急流强度,降水强度均会减弱。

关键词：西部暴雨高、低空急流耦合数值模拟动量下传次级环流

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