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    题名 作者 年代 出处 被引量
1气候变化背景下降雨序列的变异分析显示文摘为了有效地了解气候变化背景下我国降雨序列变异情况,采用Hurst系数法进行趋势诊断和跳跃诊断,从而分析年降雨序列的变异,并利用基尼系数法对年内降雨序列的均匀度进行量化分析。对宁波市北仑区5个国家雨量站降雨序列的变异分析结果表明,降雨序列的变异点与当时的气候条件相关性很强。陈鹏 何军 徐小峰 徐枫 孙琰 2015水电能源科学2015,33,12:8
21901–2013年中亚季节降水时空变化特征及其与ENSO的关系(英文)显示文摘The vulnerable ecosystem of the arid and semiarid region in Central Asia is sensitive to precipitation variations. Long-term changes of the seasonal precipitation can reveal the evolution rules of the precipitation climate. Therefore, in this study, the changes of the seasonal precipitation over Central Asia have been analyzed during the last century(1901–2013) based on the latest global monthly precipitation dataset Global Precipitation Climatology Centre(GPCC) Full Data Reanalysis Version 7, as well as their relations with El Ni?oSouthern Oscillation(ENSO). Results show that the precipitation in Central Asia is mainly concentrated in spring and summer seasons, especially in spring. For the whole study period, increasing trends were found in spring and winter, while decreasing trends were detected in summer and fall. Inter-annual signals with 3–7 years multi-periods were derived to explain the dominant components for seasonal precipitation variability. In terms of the dominant spatial pattern, Empirical orthogonal function(EOF) results show that the spatial distribution of EOF-1 mode in summer is different from those of the other seasons during 1901–2013. Moreover, significant ENSO-associated changes in precipitation are evident during the fall, winter, spring, and absent during summer. The lagged associations between ENSO and seasonal precipitation are also obtained in Central Asia. The ENSO-based composite analyses show that these water vapor fluxes of spring, fall and winter precipitation are mainly generated in Indian and North Atlantic Oceans during El Ni?o. The enhanced westerlies strengthen the western water vapor path for Central Asia, thereby causing a rainy winter.陈曦 王闪闪 胡增运 周启鸣 胡琪 2018Journal of Geographical Sciences2018,28,9:7
3武功地区气候变化特征及趋势预测显示文摘基于1955—2012年武功地区气温与降水量逐日观测数据,运用累积距平、Mann-Kendall检验与洛伦兹曲线理论分析了该地区年均气温和降水量地变化趋势及年内均匀性评价,并借助R/S分析对该地区气候发展趋势进行预测。结果表明:武功地区58年来年均气温呈明显上升趋势,而年降水量呈下降趋势;气温在1990年发生气温升高突变,1955—1984年为丰水期,1985—2002年转入枯水期,2002年之后逐渐转为丰水期;年内降水分布不均匀性逐渐增强,降水量较小的月份所占比例较大,且基尼系数与洛伦兹不对称系数的年代际变幅不大,基本趋于不变;目前气温升高趋势将不再持续,未来可能降低,并且年降水量减少趋势也不再持续,未来可能开始增加。侯凯 林涛 钱会 徐盼盼 杨咪 2017水土保持研究2017,24,4:6
4中亚地区冬季极端降雪增加与北大西洋两类海温模态增强的联系显示文摘利用气候预报中心(CPC)提供的1979-2018年日降水数据,欧洲中期天气预报中心(ECMWF)的全球再分析数据及美国国家海洋和大气管理局(NOAA)的海温数据分析了中亚地区极端降雪的时空演变特征及其与北大西洋海温的联系,并通过地球系统模式CESM1.0.4的CAM5.1模块进行敏感性试验验证.结果表明:中亚地区冬季极端降雪空间分布极不均匀,极端降雪主要发生在哈萨克斯坦、吉尔吉斯斯坦、塔吉克斯坦和北疆地区,乌兹别克斯坦、土库曼斯坦和南疆的沙漠地区极端降雪较少;四个极端降雪指数在中亚和各个气候区均表现为显著的增加趋势,其中,以天山山脉为代表的南部关键区年际变率最大.中亚南部关键区极端降雪频次增加对应沿着北大西洋急流和亚非急流的两支波列增强,其波源位于副热带北大西洋和热带北大西洋,并对应北大西洋'一致型'和'三极子型'两类海温模态.自2000年以来,增加的(副)热带海温及两类模态指数均有助于亚非急流入口西伸,并与北大西洋急流对接,加强了波源区能量沿两支急流向下游频散,并增强了两支波列,进而导致巴尔喀什湖一带的气旋异常和阿拉伯海北部的反气旋异常加强,二者增强了来自阿拉伯海的西南水汽输送以及中亚南部地区的辐合,有助于2000年以来的极端降雪增加.CESM模式结果较好地验证了北大西洋副热带和热带地区海温通过波列和涡旋异常对极端降雪的影响.李双双 张杰 陈志恒 2022高原气象2022,41,5:3
5长沙市降水变化规律研究显示文摘利用长沙市1951—2013年的逐日降水数据,结合变差系数Cv、气象线性趋势、Pearson相关系数和Morlet小波分析等方法,分析近63 a长沙市的降水变化特征。研究结果表明:1)长沙市降水量较丰富,在年内分布上,其降水主要集中于春夏两季,秋冬季节的降水量相对较少且变化率较大(0.47~0.49);2)在年际分布上,长沙市多年平均降水量总体呈现出增加趋势,其中夏、秋、冬三季降水量呈现出微弱的增加趋势,而春季降水量表现为微弱的减少趋势;3)长沙市降水的主变化周期为28 a,且受到春、夏两季降水变化周期的影响较大。本研究结果在一定程度上揭示了长沙市降水量的时间(年际与年内)变化趋势和周期性特征,以期为长沙地区的水资源利用、旱涝灾害防治和水利基础设施建设等方面提供科学参考。罗梅芳 冯畅 杨柳 2020江西科学2020,38,5:3
6Spatial and temporal patterns of the inter-annual oscillations of glacier mass over Central Asia inferred from Gravity Recovery and Climate Experiment(GRACE) data显示文摘Monitoring glacier mass balance is crucial to managing water resources and also to understanding climate change for the arid and semi-arid regions of Central Asia. This study extracted the inter-annual oscillations of glacier mass over Central Asia from the first ten principal components(S-PCs) of filtered variability via multichannel singular spectral analysis(MSSA), based on gridded data of glacier mass inferred from Gravity Recovery and Climate Experiment(GRACE) data obtained from July 2002 to March 2015. Two significant cycles of glacier mass balance oscillations were identified. The first cycle with a period of 6.1-year accounted for 54.5% of the total variance and the second with a period of 2.3-year accounted for 4.3%. The 6.1-year oscillation exhibited a stronger variability compared with the 2.3-year oscillation. For the 6.1-year oscillation, the results from lagged cross-correlation function suggested that there were significant correlations between glacier mass balances and precipitation variations with the precipitation variations leading the response of glacier mass balances by 9–16 months.ZHU Chuandong LU Yang SHI Hongling ZHANG Zizhan 2017Journal of Arid Land2017,9,1:2
7辽西地区降水变化特征研究综述显示文摘辽西地区作为辽宁省降水量最少的区域,旱情频发,严重影响了人们正常的生产生活。通过分析众多气象专家学者关于各地降水变化特征的相关研究,其中包含辽西地区的研究现状,得出全面分析辽西地区降水变化规律的探究方向,具有指导性的科学价值。刘安然 李普庆 张楠 余克勤 马熙达 苏长新 冯学文 2018农业灾害研究2018,8,6:1
8中亚及新疆生态环境变化驱动力分析显示文摘本文着重分析了中亚及新疆地区生态环境变化的自然驱动力和人为驱动力,包括全球变暖、盲目农垦、水资源过度利用、灌区污水排放不合理、工业污染、人口增长等。针对诸多生态环境问题,提出了相应的保护措施。韩瑞丹 朱双伟 张谦益 2018中州建设2018,0,5:0
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