Nowadays, different places have different region stability, which is influenced by lots of factors. In this paper ,it is aimed to analyze the influence of climate change on regional stability. several factors that may influence the region stability are proposed. Then Principle Components Analysis (PCA) was used to select the most relevant factors. After that ,a BP neural network is established considering all the principle components to evaluate the Region Stability (RS). Subsequently, the specific influence of the climate change is analyzed and the results showed that long term average precipitation is a main climate factor influencing the RS.
MERCURY: A fast and versatile multi-resolution based global emulator of compound climate hazards
University of Oxford(牛津大学);Montreal Polytechnique(蒙特利尔理工学院);Columbia Climate School(哥伦比亚气候学院);International Institute for Applied Systems Analysis(国际应用系统分析研究所);Universität Leipzig(莱比锡大学);IRI THESys;Humboldt-Universität zu Berlin(柏林洪堡大学);Institute Pierre-Simone-Laplace(皮埃尔-西蒙·拉普拉斯研究所)
Evaluation of the performance of Euro-CORDEX RCMs for assessing hydrological climate change impacts in Great Britain: a comparison of different spatial resolutions and quantile mapping bias correction methods
Diagnosing added value of convection-permitting regional models using precipitation event identification and tracking
高分辨率区域气候模式的动态降尺度可能提供在气候模拟中真实再现降水和天气事件的可能性。当分辨率降到千米级时,使用显式对流而不是参数化对流可以提供更高的保真度。然而,这些增加的模型分辨率允许并且需要越来越复杂的诊断来评估模型保真度。在这项研究中,我们使用了一套动态缩小规模的模拟夏季美国(WRF驱动的NCEP)与系统的变化参数和治疗对流作为一个测试案例模型降水的评估。特别是,我们使用了一种新的暴雨识别和跟踪算法,该算法基本上将所有降雨分配给单个降水事件(Chang et al. 2016)。这种方法允许多方面的见解,包括,至少在这些运行中,模型湿偏差是由过度的面积范围的降水事件。偏差是时间依赖性的,产生过度的昼夜周期振幅。我们发现,这种效果是由新的生产的事件,但在白天的长期降水事件的过度放大,并在域平均,降水偏差出现最好的表示为添加剂的偏移。在所有评估的模型配置中,对流允许模拟最一致地减少了降水事件特征的偏差。
Model selection in extreme value regression for estimation of changes in return values over time applied to extreme annual regional CMIP6 desert temperatures
Lancaster University(兰卡斯特大学);MetOcean Research Ltd(MetOcean研究有限公司)
Assessment of Future Changes in Intensity-Duration-Frequency Curves for Southern Ontario using North American (NA)-CORDEX Models with Nonstationary Methods
Does Cross-Field Influence Regional and Field-Specific Distributions of Highly Cited Researchers?
根据基于Web of Science数据库的引文分析,Clarivate Analytics每年11月都会公布高被引研究人员(HCR),以表彰过去十年中各自领域的真正先驱者,他们是千分之一。然而,多年来,HCR选择背后的科学计量规则不断发展;因此,在2018年之前和之后,当交叉领域开始被纳入HCR统计数据时,HCR的学术相关性之间的比较研究是必不可少的。本文通过分析不同地区和基本科学指标(ESI)领域的HCR分布,评估了2017年和2018年测量的一致性,研究了在原始21个ESI领域中引入交叉领域类别的影响,并描绘了不受测量偏差影响的地区和主题HCR分布的准确图像。交叉场被认为对区域和特定领域的HCR分布产生很大影响,特别是对于HCR计数大于150的研究领域。在纳入跨领域HCR后,增长势头最大的是除美国和中国以外的其他国家和地区。
Arctic teleconnection on climate and ozone pollution in the polar jet stream path of eastern US
The University of Sydney(悉尼大学);Chennai Mathematical Institute(马德拉斯数学研究所);AI 4 Water LTD(AI 4 Water有限公司);Institute for Interdisciplinary Research(跨学科研究所);School of Computational and Integrative Sciences, Jawaharlal Nehru University(贾瓦哈拉尔·尼赫鲁大学计算与综合科学学院)