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POSSIBLE RELATIONSHIP BETWEEN THE INTERANNUAL ANOMALY OF THE TROPICAL PACIFIC SEA SURFACE HEIGHT AND SUMMER PRECIPITATION IN CHINA

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Journal of Tropical Meteorology 2013年第1期19卷 16-27页

作者：李丽平王超章开美 Key Laboratory of meteorological Disaster of Ministry of Education/Nanjing University of Information Science and Technology Jiangmen meteorological Bureau Jiangxi meteorological service center

By using NCEP GODAS monthly sea surface height(SSH) and 160-station monthly precipitation data in China,the seasonal and interannual characteristics of SSH are analyzed over the tropical Pacific,and correlations between SSH and summer rainfall are *** results are shown as follows:(1) The tropical Pacific SSH takes on a "V" pattern in the climatic field with an eastward opening,and it is higher in the western part(in the northwestern part) than in the eastern part(in the southwestern part).The high-value areas are more stable in the northwest,and the value range(greater than 0.8 m) is larger in spring and summer than in autumn and *** high-value area in the southwestern part is the largest(smallest) and more northerly(southerly) in spring(summer).SSH is higher in spring and autumn than in summer and winter over the equatorial zone.(2) The interannual anomalies of the SSH are the strongest over the tropical western and southwestern Pacific and are stronger in winter and spring than in summer and *** interannual anomalies are also strong over the equatorial middle and eastern *** distribution ranges are larger and the intensities are stronger in the autumn and *** is a close relationship between the SSH interannual anomalies and ENSO events in autumn,winter and spring.(3) When ENSO events take place in winter,according to the simultaneous relationship among the tropic Pacific SSH,850 hPa wind fields and the summer precipitation of China,it can be predicted that the precipitation will be significantly more than normal over the south of the Yangtze River,especially over Dongting Lake and Poyang Lake region,eastern Qinghai-Tibet Plateau,Yangtze-Huai River Valley,eastern part of Inner Mongolia and less than normal over the area of Great Band of Yellow River,North China and South China in successive summers.

关键词： sea surface height interannual anomalies tropical Pacific Ocean summer rainfall of China

Movement analysis in the diagnosis and management of Parkinson’s disease

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Neural Regeneration Research 2025年第2期20卷 485-486页

作者： Johannes Burtscher Nicolas Bourdillon Jules MJanssen Daalen Aurélien Patoz Julien FBally Martin Kopp Davide Malatesta Bastiaan RBloem Institute of Sport Sciences University of LausanneLausanneSwitzerland Radboud University Medical center Department of NeurologyDonders Institute for BrainCognition and BehaviorCenter of Expertise for Parkinson and Movement DisordersNijmegenThe Netherlands Radboud University Medical center Department of Medical BioSciencesNijmegenThe Netherlands Research and Development Department Volodalen Swiss Sport LabAigleSwitzerland service of Neurology Department of Clinical NeurosciencesLausanne University Hospital(CHUV)and University of Lausanne(UNIL)LausanneSwitzerland Department of Sport Science University of InnsbruckInnsbruckAustria

Challenges in the diagnosis and treatment of Parkinson’s disease:Parkinson’s disease(PD)is an increasingly prevalent neurodegenerative disease,at first sight primarily characterized by motor symptoms,although non-motor symptoms also constitute a major part of the overall ***,this disease cannot be diagnosed reliably until a large part of the vulnerable dopaminergic neurons has been irretrievably lost,and the disease progresses *** biological criteria for PD have been proposed recently and might eventually improve early diagnosis,but they require further validation,and their use will initially be restricted to a research environment(Darweesh et al.,2024).

关键词： diagnosis Clinical eventually

Impacts of Polar Vortex,NPO,and SST Configurations on Unusually Cool Summers in Northeast *** I:Analysis and Diagnosis

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Advances in Atmospheric Sciences 2013年第1期30卷 193-209页

作者：廉毅沈柏竹李尚锋赵滨高枞亭刘刚刘平曹玲 Laboratory of Research for Middle-High Latitude Circulation Systems and East Asian Monsoon Institute of meteorological Sciences of Jilin Province National meteorological center Jilin meteorological Science and Technology service center center of Weather Film in Jilin Province

This study unveils the evolution of two major early signals in the North Pacific atmosphere-ocean system that heralded abnormal high-pressure blockings and cold-vortex activities across Northeast China, based on an analysis of the configurations of major modes including the polar vortex, the North Pacific Oscillation （NPO）, and SST in the preceding winter and spring and atmospheric low-frequency disturbances in Northeast China. We analyzed these aspects to understand the atmosphere ocean physical coupling processes characterized by the two early signals, and here we explain the possible mechanisms through which dipole circulation anomalies affect the summer low-temperature processes in Northeast China. We further analyzed the interdecadal variation background and associated physical processes of the two early signals.

关键词： polar vortex NPO North Pacific SST atmosphere-ocean coupling summer low temperatures in Northeast China dipole pattern

How Does Tropical Cyclone Size Affect the Onset Timing of Secondary Eyewall Formation？

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Journal of meteorological Research 2018年第1期32卷 124-134页

作者： Liang GUAN Xuyang GE Collaborative Innovation center on Forecast and Evaluation of meteorological Disasters/Key Laboratory of meteorological Disaster Nanjing University of Information Science & Technology Nanjing 210044 Shanghai meteorological Science and Technology service center Shanghai 200030

By using idealized numerical simulations, the impact of tropical cyclone size on secondary eyewall formation（SEF） is examined. Both unbalanced boundary layer and balanced processes are examined to reveal the underlying mechanism. The results show that a tropical cyclone（TC） with a larger initial size favors a quicker SEF and a larger outer eyewall. For a TC with a larger initial size, it will lead to a stronger surface entropy flux, and thus more active outer convection. Meanwhile, a greater inertial stability helps the conversion from diabatic heating to kinetic ***, the progressively broadening of the tangential wind field will induce significant boundary layer imbalances. This unbalanced boundary layer process results in a supergradient wind zone that acts as an important mechanism for triggering and maintaining deep convection. In short, different behaviors of balanced and unbalanced processes associated with the initial wind profile lead to different development rates of the secondary eyewall.

关键词： secondary eyewall formation tropical cyclone size surface entropy flux

Structure, Antibacterial Activity and Theoretical Study of the Forming Mechanism of Compound [(5-Methyl-3-oxo-2-phenyl-1H-pyrazol-4-yl)-thiophen-2-yl-methylene] Thiosemicarbazide

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Chinese Journal of Structural Chemistry 2014年第9期33卷 1275-1280页

作者：朱华玲朱金花黄治强吕丽娟尉震 Department of Basic Science Tianjin Agricultural College meteorological service center of Shanxi Province

A new thiosemicarbazone compound derived from 1-phenyl-3-methyl-4-（2-thenoyl） pyrazolone-5 （HPMTP） and thiosemicarbazide has been synthesized and characterized by IR, H- NMR, MS, elemental analysis, UV and single-crystal X-ray diffraction. The compound crystallizes in monoclinic system, Cc space group with a = 7.5925（8）, b = 20.263（2）, c = 11.4669（13） A, r= 107.825（8）°, V = 1679.5（3） A3, Z = 4, R = 0.0316 and wR = 0.0687. The results of antibacterial activity test against Escherichia coli and Bacillus subtilis indicate that the compound possesses the same antibacterial activity as the contrast （Norfloxacin）. Theoretical study of the forming mechanism to the title compound at the RHF/6-31G（d） level shows that there are two steps. The distal amino group of thiosemicarbazide is added to the 4-carbonyl group of HPMTP which forms TM. Then a dehydration reaction occurs in TM and generates a stable product PC.

关键词： synthesis structure antibacterial activity forming mechanism

Effects of Optimized Root Water Uptake Parameterization Schemes on Water and Heat Flux Simulation in a Maize Agroecosystem

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Journal of meteorological Research 2017年第2期31卷 363-377页

作者： Fu CAI Huiqing MING Na MI Yanbing XIE Yushu ZHANG Rongping LI Institute of Atmospheric Environment China Meteorological Administration Shenyang 110166 Liaoning Province meteorological service center Shenyang 110166 Institute of meteorological Science of Liaoning Province Shenyang 110166

As root water uptake（RWU）is an important link in the water and heat exchange between plants and ambient air,improving its parameterization is key to enhancing the performance of land surface model *** different types of RWU functions have been adopted in land surface models,there is no evidence as to which scheme most applicable to maize farmland *** on the 2007–09 data collected at the farmland ecosystem field station in Jinzhou,the RWU function in the Common Land Model（Co LM）was optimized with scheme options in light of factors determining whether roots absorb water from a certain soil layer（W_x）and whether the baseline cumulative root efficiency required for maximum plant transpiration（W_c）is *** sensibility of the parameters of the optimization scheme was investigated,and then the effects of the optimized RWU function on water and heat flux simulation were *** results indicate that the model simulation was not sensitive to W_x but was significantly impacted by W_*** the original model,soil humidity was somewhat underestimated for precipitation-free days;soil temperature was simulated with obvious interannual and seasonal differences and remarkable underestimations for the maize late-growth stage;and sensible and latent heat fluxes were overestimated and underestimated,respectively,for years with relatively less precipitation,and both were simulated with high accuracy for years with relatively more *** optimized RWU process resulted in a significant improvement of Co LM’s performance in simulating soil humidity,temperature,sensible heat,and latent heat,for dry *** conclusion,the optimized RWU scheme available for the Co LM model is applicable to the simulation of water and heat flux for maize farmland ecosystems in arid areas.

关键词： root water uptake land surface model water flux heat flux maize agroecosystem

Modeling Study of Aerosol Indirect Effectson Global Climate with an AGCM

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Advances in Atmospheric Sciences 2010年第5期27卷 1064-1077页

作者：王志立张华沈学顺龚山陵张小曳 Chinese Academy of meteorological Sciences National Climate center China Meteorological Administration center for Numerical Prediction Research and State Key Laboratory of Severe Weather Chinese Academy of Meteorological Sciences center for Atmosphere Watch and services China Meteorological Administration Air Quality Research Branch Meteorological Service of Canada Toronto Ontario Canada

Aerosol indirect effects （AIEs） on global climate were quantitatively investigated by introducing aerosol–cloud interaction parameterizations for water stratus clouds into an AGCM （BCC AGCM2.0.1）, which was developed by the National Climate center of the China meteorological Administration. The study yielded a global annual mean of -1.14 W m^-2 for the first indirect radiative forcing （IRF）, with an obvious seasonal change. In summer, large forcing mainly occurred in mid to high latitudes of the Northern Hemisphere, whereas in winter, large values were found at 60°S. The second indirect effect led to global annual mean changes in net shortwave flux of -1.03 W m^-2 at the top of the atmosphere （TOA）, which was relatively significant in mid-latitude regions of both hemispheres. The total AIE reduced the global annual means of net shortwave flux at the TOA and of surface temperature by 1.93 W m^-2 and 0.12 K, respectively. Change in surface temperature induced by the total AIE was clearly larger in the Northern Hemisphere （-0.23 K） than in the Southern Hemisphere, where changes were negligible. The interhemispheric asymmetry in surface cooling resulted in significant differences in changes of the interhemispheric annual mean precipitation rate, which could lead to a tendency for the ITCZ to broaden. The total AIE decreased the global annual mean precipitation rate by 0.055 mm df^-1.

关键词： aerosol cloud radiation indirect effect

The influence of increasing temperatures on highland barley yields and on the maximum cultivation altitude on the Tibetan Plateau

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Advances in Climate Change Research 2023年第4期14卷 573-579页

作者： Chun-Yi WANG Yan-Ling SONG Hans W.LINDERHOLM Yong LI Bo-Ting ZHANG Jun DU Feng-Xia LI Ming-Tian WANG Run-Yuan WANG Yong ZHU Jin-Xia XU Yan-Jun GUO Deliang CHEN State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesBeijing 100081China Collaborative Innovation center on Forecast and Evaluation of meteorological Disaters(CIC-FEMD) Nanjing University of Information Science&TechnologyNanjing 210044China Department of Earth Sciences University of GothenburgGothenburg 40530Sweden Guizhou meteorological service Guiyang 550002China Xizang meteorological service Lasa 850001China Qinghai meteorological service Xining 810012China Sichuan meteorological service Chengdu 610072China Institute of Arid Meteorology China Meteorological AdministrationLanzhou 730020China Yunnan meteorological service Kunming 650034China National Climate center China Meteorological AdministrationBeijing 100081China

Highland barley(Hordeum vulgare *** Hook.f.)is the principal cereal crop over the Tibetan Plateau(TP).The response of highland barely to climate change in the past decades,especially in terms of yields still remains *** this study,its responses to climate change were investigated using daily weather data and agriculture data during 1961–*** results showed that the annual mean air temperature over the TP increased at 0.33°C per decade during 1961–2018,and the rate of warming increased with altitude,reaching 0.41°C per decade at altitudes of 4500–4700 *** growing degree days(GDDs)increased by 9.6%during 2011–2018 compared with the 1960s,whereas low temperature degree days(LDDs)decreased by 40.3%over the same period,indicating that the thermal conditions for highland barley cultivation have improved.A strong relationship was observed between the yield of highland barley and LDDs(−0.76,p<0.001)than GDDs(0.58,p<0.001)in Xizang,where sufficient irrigation water is available from the melting of snow cover or *** Sichuan,with abundant precipitation,significant correlations were noticed between county-level barley yield and GDDs and LDDs(0.60,p<0.001;−0.65,p<0.001).In Qinghai,the dry regions,county-level yields were influenced significantly by temperature and *** results indicated that climate warming was beneficial to highland barley yield in most region of the TP,mainly due to decreased *** potential altitude at which highland barley cultivation is feasible increased by approximately 280–484 m during 2016–2018,compared with 1981–*** Xizang,highland barley could be cultivated up to an altitude of 4507 m *** 2016 and 2018,and it increased to 4179 m *** *** results could help local government to take actions to adapt to global warming and improve food security.

关键词： Highland barley Climate change Yield Maximum cultivation altitude Tibetan Plateau

Direct Radiative Effects of Dust Aerosols over Northwest China Revealed by Satellite-Derived Aerosol Three-Dimensional Distribution

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Journal of meteorological Research 2022年第5期36卷 767-778页

作者： Rui JIA Yuzhi LIU Yan LI Jun LI Xiaolin HU Ronglu GAO Yunfei TIAN Yanling SUN Nannan MU Minfen ZHAO Collaborative Innovation center for Western Ecological Safety Lanzhou UniversityLanzhou 7300002 Zibo meteorological Bureau Zibo 2550003 Shandong meteorological service center Jinan 250000

Northwest China is recognized as a main source and a major transport channel of dust aerosols in East *** a fragile ecological environment,this region is quite sensitive to global climate *** on the satellite-derived aerosol three-dimensional distribution,the direct radiative effects of dust aerosols over Northwest China are *** over Northwest China are mainly distributed in the Tarim Basin,Junggar Basin,Gobi Desert,and Loess *** aerosol extinction coefficients are greater than 0.36 km-1 over the Tarim Basin and 0.16 km^(-1) over the Gobi Desert and Loess Plateau,decreasing with *** over Northwest China are mainly composed of pure dust and polluted *** dust aerosols can modify the horizontal temperature gradient,vertical thermodynamic structure,and diurnal temperature range by absorbing and scattering shortwave radiation and emitting longwave *** the column atmosphere,the radiative effect of dust aerosols shows heating effect of approximately 0.3 K day^(-1) during the daytime and cooling effect of approximately-0.4 K day^(-1) at *** the vertical direction,dust aerosols can heat up the lower atmosphere(0.5–1.5 K day^(-1))and cool down the upper atmosphere(about-1.0 K day^(-1))during the daytime,while they cool down the lower atmosphere(-3 to-1.5 K day^(-1))and heat up the upper atmosphere(1–1.5 K day^(-1))at *** are also significant lateral and vertical variations in the dust radiative effects corresponding to their spatial *** study provides some scientific basis for reducing uncertainty in the investigation of aerosol radiative effects and provides observation evidence for simulation studies.

关键词： aerosol three-dimensional distribution direct radiative effect Northwest China