Results 41 to 50 of about 1,804 (183)
野生动物学报, 2009 通过问卷调查和样地调查方法,分析极端天气气候对宁夏野生动物种群安全产生的影响。极端天气气候对优势物种数量影响严重。雀形目种群安全主要受到沙尘暴、冰雹和暴雨的影响较大;迁徙鸟类种群安全主要受到沙尘暴、冰雹和暴雨的影响较大;啮齿类种群安全主要受到暴雨的影响较大;岩羊种群安全受到沙尘暴、冰雹、暴雨和降雪的影响。
刘晓红
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Dianci bileiqi, 2021 随着全球气候变暖,特大暴雨、雾霾、暴雪等极端天气频发,其中暴雨天气已成为电力设备安全运行的严重隐患之一。空心复合绝缘子已被广泛应用于各种电力设备中,但对于强降雨条件下空心复合绝缘子的冲击闪络特性缺乏系统的研究。以额定电压220 kV空心复合绝缘子为试品,进行了强降雨条件下空心复合绝缘子的冲击放电电压试验,研究结果表明:强降雨条件下,降雨强度对于空心复合绝缘子的50%雷电冲击闪络电压影响不大,而50%操作冲击闪络电压随着降雨强度的增大而减小,符合负幂指数关系;雨水电导率的增加对50 ...
刘蕾 +5 more
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Zhejiang Daxue xuebao. Lixue ban, 2019 暴雨情景下，山区径流水位突涨、流速与流量骤变等易发生公路洪灾，对人民生命财产安全造成巨大威胁。以巫山县为例，在不同强度降雨阈值下对降雨-径流水文参数指标进行量化处理，全面分析了降雨与水位、流速、流量之间的关系，并在多情景降雨下，基于公路洪灾孕灾指标，构建了公路洪灾预警模型。研究结果表明：山区径流水位变化幅度大于流速，而在大暴雨及特大暴雨情景下（降雨临界值185 mm），流速变化大于水位，在不同降雨阈值下，等级较低的河流更易发生公路洪灾，其水位空间变化更剧烈、效应范围更广 ...
YANGMeng(杨猛) +5 more
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Shuitu Baochi Xuebao, 2004 对皖西南大沙河流域1954～1999年的降水记录和该流域1970年以来的逐月径流和输沙量资料分别进行了趋势分析和关联分析，发现46年来，地处皖西南大别山区的大沙河流域降水的季节和年际变化异常显著，且降水有下降趋势，流域春季、夏季和全年的降水变化率分别为-7．4mm／10a，-13．06mm／10a和-4．6mm／10a。通过对同期降雨、径流和输沙量各因子相互间的灰色关联分析发现大沙河流域输沙量与日雨量大于100mm和50～100mm的暴雨次数关联最密切，其关联系数分别达到0．98和0．90 ...
张建春 查良松 史志刚 蒲慎远
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Development characteristics and risk assessment of geological hazards in the mountainous and hilly areas of western Zhengzhou City [PDF]
Objective The mountainous and hilly areas of western Zhengzhou City have a complex geological environment, affected by rainfall and human engineering activities. Geological hazards such as collapses, landslides, and debris flows occur frequently.
LIU Songbo +4 more
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Analysis of typical cases of groundwater in high fill landslide with combined well-hole drainage [PDF]
Taking the landslide control project of landslide No.13 at Panzhihua airport as an example, this paper briefly describes the basic situation of the landslide and focuses on the hydrogeological conditions of the study area.
Guoquan LAI, Haiping JIAO
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Weather system classification of local hourly heavy rainfall in Jiangxi Province [PDF]
Based on the conventional high-altitude and ground observation datasets and the 1-hour rainfall datasets from 93 national auto? matic weather stations in Jiangxi from April to September of 1998 to 2019, a total of 204 selected local hourly heavy rainfall
Fang ZHOU +3 more
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[[alternative]]Study on Application of the Approximate Distribution to Hydrologic Frequency Analysis [PDF]
計畫編號：NSC90-2211-E032-023研究期間：200108~200207研究經費：410,000[[sponsorship ...
虞國興
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Study on the influence of ECMWF short-term forecast field assimilation on regional mesoscale model forecast [PDF]
The forecast of the global numerical weather prediction model is often used as the background field to drive the regional mesoscale weather models, and its forecast quality has an important impact on the prediction skill of regional models. The mesoscale
Anwei LAI +8 more
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