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52 条 记 录,以下是 1-30

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Long-term summer warming trend during the Holocene in central Asia indicated by alpine peat α-cellulose δ13C record
Quaternary Science ReviewsRao, Zhiguo Huang, Chao Xie, Luhua Shi, Fuxi Zhao, Yan Cao, Jiantao Gou, Xiaohua Chen, Jianhui Chen, Fahu  出版年:2019
The long-term cooling or warming trend is one of the most important aspects of Holocene paleoclimatic research. However, there are currently significant discrepancies among climatic simulation results, sedimentary and sy...
Meltwater is the dominant water source controlling α-cellulose δ18O in a vascular-plant-dominated alpine peatland in the Altai Mountains, Central Asia
Journal of HydrologyShi, Fuxi Rao, Zhiguo Cao, Jiantao Huang, Chao Wu, Dandan Yang, Wen Sun, Weizhen  出版年:2019
Few studies have fully considered how hydrological inputs and climate influence the linkage between the oxygen isotopic composition of α-cellulose (δ18Ocell) and thEIr source waters in vascular-plant-dominated alpine pea...
季风期间南海低空大气波导统计分析
《电波科学学报》成印河 赵振维 张玉生  出版年:2012
根据1998年南海季风试验期间南海部分探空站、‘科学1号’和‘实验3号’观测的每天4次的高分辨率探空资料,引入截止波长判断式,统计分析了南海季风期间较强大气波导发生规律及时空分布特征。结果表明:季风期间南海较强大气波导的...
关键词:南海季风试验  大气波导  统计特征  被引量:9
冬季南海北部近岸蒸发波导环境分析
《电波科学学报》成印河 张玉生 赵振维 朱凤芹  出版年:2013
利用南海近岸冬季1月份铁塔气象梯度数据和海面皮层温度数据,对我国南海近岸蒸发波导环境及其影响参数进行了分析.结果表明:整个冬季南海北部近岸蒸发波导环境是变化的,不低于10m蒸发波导平均发生概率为85%以上,平均折射率梯度...
关键词:冬季  南海  蒸发波导  修正大气折射率  被引量:8
Coupled isotopic evidence for elevated pCO2 and nitrogen limitation across the Santonian-Campanian transition
Chemical GeologyCao, Hansheng Kaufman, Alan J. Shan, Xuanlong  出版年:2019
The Santonian–Campanian (S–C) transition notably coincides with the termination of the Cretaceous Normal Superchron, a positive carbon isotope anomaly, and the enhanced preservation of organic matter associated with an o...
湍流热对流大尺度环流反转时的角涡特性
《物理学报》包芸 宁浩 徐炜  出版年:2014
本文采用DNS方法计算二维方腔RaylEIgh–Bénard热对流.在软湍流区热对流场呈现大尺度环流和两个反向转动的角涡,并出现了大尺度环流的反转现象.连续的温度等值线和流线图清晰地描述了反转现象的全过程.在反转过程中,...
关键词:热对流  大尺度环流  反转现象  角涡特性  被引量:3
Impacts of onset Time of El Ni?o events on summer rainfall over southeastern australia during 1980-2017
AtmosphereFan, Lingli Xu, Jianjun Han, Liguo  出版年:2019
El Ni?o-Southern Oscillation (ENSO) has large impacts on Australia's rainfall. A composite analysis technique was utilized to distinguish the impact of onset time of El Ni?o on summer rainfall over southeastern Australia...
聚N-异丙基丙烯酰胺水凝胶的制备及热致聚集行为
《材料导报》胡耀强 陈法锦 刘海宁 张慧芳 吴志坚 叶秀深  出版年:2018
以异丙基丙烯酰胺(NIPAM)为单体、N,N’-亚甲基双丙烯酰胺(MBA)为交联剂、过硫酸钾(KPS)为引发剂,采用无皂乳液聚合法制备聚N-异丙基丙烯酰胺(PNIPAM),考察了聚合时间、温度、浓度、pH值、共存NaCl...
关键词:温敏效应  PNIPAM  NIPAM  水凝胶  被引量:1
南海西北部上层海洋对连续台风的近惯性响应
《中国科学:地球科学》马永贵 张书文 齐义泉 经志友  出版年:2019
文章基于2011年9~11月南海西沙潜标观测资料,研究了西沙海域上层海洋对连续台风Nesat(1117)和Nalgae(1119)过境的近惯性响应.结果表明:两个台风过境都产生了强烈的近惯性振荡,且台风路径右侧的近惯性流...
关键词:连续台风  近惯性振荡  近惯性能量传播  被引量:1
Comparison between Multi-Physics and Stochastic Approaches for the 20th July 2021 Henan Heavy Rainfall Case
AtmosphereShao, Duanzhou Zhang, Yu Xu, Jianjun Zhang, Hanbin Chen, Siqi Tu, Shifei  出版年:2022
In this study, three model perturbation schemes, the stochastically perturbed parameter scheme (SPP), stochastically perturbed physics tendency (SPPT), and multi-physics process param-eterization (MP), were used to repre...
Distribution and Sources of Microplastics in the Zhanjiang Bay Tidal Flat
SSRNFeng, Mingjun Huang, Xin Li, Chengyong Liang, Tingbang Feng, Xiaohang Qiu, Zihui  出版年:2023
Microplastics (MPs), a new type of pollutant, are widely distributed in marine environments worldwide, and severely affect the marine environment and the development of human society. In this study, the distribution char...
Seasonal distribution of water masses and thEIr impacts on nutrient supply in the southern BEIbu Gulf
Marine Environmental ResearchLiu, Sihai Lao, Qibin Cai, Minggang Jin, Guangzhe Chen, Chunqing Zhu, Qingmei Chen, Fajin  出版年:2024
Dual water isotopes were investigated to reveal the seasonal distribution of water masses and thEIr impacts on nutrient supply in southern BEIbu Gulf. In summer and winter, the South China Sea (SCS) water (61–69%) contri...
Climatology of Tropical Cyclone Intensity Landfalling on Luzon Island and China
Journal of Physics: Conference SeriesZhang, Shuqin Huang, Zhefan Zheng, Yanzhu Xue, Yufeng Tang, Ruoying Shi, Yifan Yang, Wanqiong Wang, Zongyang  出版年:2023
Using the TC best path data and the ERA5 reanalysis data, the statistical characteristics and environmental conditions for three types of TCs landfalling on Luzon Island and China during 1949-2020 (72 years) are investig...
Updated Scheme for Data Assimilation of Adaptive Observation?And Application for Typhoon Forecasts Over the Western North Pacific
SSRNChen, Siqi Zhang, Yu Xu, Jianjun Ye, Guiling Lu, Zebin  出版年:2022
In this study, we firstly updated a method of the Ensemble Transform Sensitivity (ETS) to identify the adaptive observation sensitive regions for typhoon forecasts with the selected five cases during 2015-2020 year over ...
Impacts of the Maritime-Continental Thermal Contrasts on the Evolution of a Squall Line Case
SSRNChen, Jinghua Xue, Lulin Fu, Shizuo Liu, Xuancheng Deng, Liping  出版年:2022
A daytime squall line occurred on July 27, 2014 over the East China and quickly dissipated when it approached the coastline. In this study, the land-ocean thermal contrast effects on the squall line’s evolution are discu...
Differences in the destructiveness of tropical cyclones over the western North Pacific between slow- A nd rapid-transforming El Ni?o years
Environmental Research LettersTu, Shifei Xu, Jianjun Xu, Feng Liang, Mei Ji, Qianqian Chen, Siqi  出版年:2020
The relationship between the destructive potential of tropical cyclones (TCs) over the western North Pacific (WNP) (as quantified by the Power Dissipation Index) and El Ni?o events is investigated in this work. Results s...
近红外光谱法间接测定白酒酒精度
《光谱学与光谱分析》胡耀强 郭敏 叶秀深 李权 刘海宁 吴志坚  出版年:2022
白酒是深受消费者喜爱的一种日常含酒精饮品,酒精度是衡量其品质的关键指标之一。简单、快速的酒精度分析方法有助于提升白酒的检验效率。光谱法具有响应快速、无损分析的优点,可为酒精度的分析提供较好的帮助。水分子对红外光具有较好的...
关键词:近红外光谱  光程  酒精度  被引量:0
Natural and anthropogenic controls on environmental change during the Holocene based on a multi-proxy record obtained from subalpine peatland in southern China
Science of the Total EnvironmentQu, Xiaoxu Huang, Chao Rao, Zhiguo Wu, Liyuan Luo, Yongyi Chen, Fajin Li, YunXia Zhao, Lin Liu, Lidan Song, Zhiguang Deng, Wenfeng  出版年:2024
The interactions between past climate, human activity and environmental change in subtropical mountainous areas are poorly understood due to the lack of reliable records in South China. In this study, the evolution of th...
Long-term winter/summer warming trends during the Holocene revealed by α-cellulose δ18O/δ13C records from an alpine peat core from central Asia
Quaternary Science ReviewsRao, Zhiguo Shi, Fuxi Li, Yunxia Huang, Chao Zhang, Xinzhu Yang, Wen Liu, Lidan Zhang, Xinping Wu, Yi  出版年:2020
Based on previously reported monitoring results from the alpine Sahara sand peatland (SSP) in the southern Altai Mountains, and modern observational δ18Op data from the Altai area, the new SSP peat α-cellulose δ18O (δ18O...
The effects of gravity waves on ozone over the Tibetan Plateau
Atmospheric ResearchChang, Shujie He, Haotian Huang, Dong  出版年:2024
The ozone valley over the Tibetan Plateau (TP) has an important effect on global weather and climate. As a significant source of atmospheric gravity waves (GWs), TP is also a key area of global stratosphere-troposphere e...
Analysis of drought characteristics in Zhanjiang
2010 4th International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2010Lingli, Fan Pinwen, Guo  出版年:2010
This thesis discusses the characteristics of drought in Zhanjiang, and analyzes its forming causes from the aspects of climatic and man-made. The integrated drought controlling measures, including soil quality improvemen...
On the Variation of Dissipation Flux Coefficient in the Upper South China Sea
Journal of Physical OceanographyLi, Jianing Yang, Qingxuan Sun, Hui Zhang, Shuwen Xie, Lingling Wang, Qingye Zhao, Wei Tian, Jiwei  出版年:2023
This study focuses on the statistical features of dissipation ux coefcient Γ in the upper South China Sea (SCS). Based on the microscale measurements collected at 158 stations in the upper SCS and derived dissipation rat...
Analysis of Individual Cases of Foggy Environment in Qiongzhou Strait based on Numerical Simulation
Proceedings of SPIE - The International Society for Optical EngineeringYe, ZiJian Zhong, MingJie  出版年:2022
Fog is a common and hazardous weather phenomenon, so it is an urgent problem to predict the development of foggy weather accurately and timely in daily forecasting. In this paper, the ERA5 reanalysis data is used as the ...
Contrasting impacts of three extreme el ni?os on double itczs over the eastern pacific ocean
AtmosphereChen, Yinlan Yan, Li Li, Gen Xu, Jianjun Long, Jingchao Zheng, Shaojun  出版年:2021
In the recent four decades, there were three record-breaking El Ni?o events: 1982/1983, 1997/1998, and 2015/2016 events. A double intertropical convergence zone (ITCZ) pattern distinctively emerges over the eastern Pacif...
Integrated chemostratigraphy (δ13C-δ34S-δ15N) constrains Cretaceous lacustrine anoxic events triggered by marine sulfate input
Chemical GeologyCao, Hansheng He, Wentong Chen, Fajin Shan, Xuanlong Kong, Deming Hou, Qinghua Pu, Xiaoqiang  出版年:2021
During the Late Cretaceous period (~100.5–65 million years ago), two episodes of expansive lake anoxia occurred in the Songliao Basin (~3× the size of Lake Superior), NE China, EIther lasting less than one million years....
El Ni?o Onset Time Affects the Intensity of Landfalling Tropical Cyclones in China
AtmosphereYang, Jinyi Xu, Feng Tu, Shifei Han, Liguo Zhang, Shaojing Zheng, Meiying Li, Yongchi Zhang, Shihan Wan, Yishun  出版年:2023
In this work, we studied the influence of spring (SP) and summer (SU) El Ni?o events on the landfalling tropical cyclones (TCs) in China. The results showed that compared to SU El Ni?o years, the average latitude of the ...
Establishment of wave climate datasets: Case study for the Maritime Silk Road
Proceedings - 2020 6th International Conference on Big Data and Information Analytics, BigDIA 2020Zheng, Chong-Wei Zhang, Guo Chen, Yun-Ge Wang, Xiao-Lu Xiao, Zi-Niu Li, De-Lin  出版年:2020
How to extract useful and key information from the original big wave data with large volume and low information density and establish a wave climate datasets is still in a blank status, which is also urgently needed in t...
Research on intelligent fire rating evaluation and rapid rescue plan optimization strategy
Proceedings - 2020 International Conference on Urban Engineering and Management Science, ICUEMS 2020Qiu, Juliao Wang, Jingdong He, Tiansi Chen, Baolian Chen, Xingxing  出版年:2020
With the frequent occurrence of extreme global climate, the number and hazard rating of various types of natural disasters have an inevitable upward trend, and the fire is one of the most influential disasters. Therefore...
Growing Pacific Linkage with Western North Atlantic Explosive Cyclogenesis
Journal of ClimateStuivenvolt-Allen, Jacob Wang, Simon S.-Y. Chikamoto, Yoshimitsu Meyer, Jonathan D.D. Johnson, Zachary F. Deng, Liping  出版年:2023
Explosive cyclones (ECs), defined as extratropical cyclones that experience normalized pressure drops of at least 24 hPa in 24 h, are impactful weather events in the North Atlantic sector, but year-to-year changes in the...
Comparative Analysis of Marine Atmospheric Boundary Layer HEIght Changes in the East China Sea Based on FNL and ERA5 Data
Journal of Physics: Conference SeriesChang, Shujie Zhang, Yisan Li, Yongchi  出版年:2023
This study compiled the NCEP FNL and ERA5 data from 2010 to 2019 to study the characteristics of the hEIght changes of the marine atmospheric boundary layer (MABL) in the East China Sea and selected coastal (region A), o...
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