Results 11 to 20 of about 355 (147)

Analysis on the climate characteristics of local rainstorm in inland Taizhou from 1981 to 2010(台州1981~2010年内陆局地性暴雨气候特征分析)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2015
利用NCEP、fnl再分析资料和常规探测资料分析1981~2010年台州市局地暴雨的时空分布,并进行天气分型,对平均形势和典型个例进行了对比分析.结果表明:(1)台州局地暴雨日约占总暴雨日数的1/3,月际变化显著;局地暴雨总体上呈北多南少分布;(2)5~6月暴雨主要由西风带类造成,8~9月主要由东风带造成,7月各类暴雨均有发生.热带系统、移动低槽、南海台风是引发台州局地暴雨最多的系统.局地暴雨对于水汽输送和动力条件的要求比大暴雨要低得多.各型范围暴雨和局地暴雨在850 hPa形势场上有较明显的差异;(3)
WANGHuihui(汪卉卉)   +1 more
doaj   +1 more source

Assessment of multi-source observation merged 1 km-grid precipitation product during the disastrous rainstorms in Guangdong [PDF]

open access: yes, 2023
This paper aims to assess the latest 1 km-grid Analysis Real Time (ART_1 km) precipitation product developed by the National Meteorological Information Center of China Meteorological Administration (CMA), which can provide great support for disaster ...
Chunyan ZHANG   +6 more
core   +1 more source

Regional Runoff Characteristics in Zhengzhou City Based on SCS-CN Model [PDF]

open access: yes, 2022
[Objective] The causes of waterlogging in Zhengzhou City were studied in order to provide a reference for risk prevention and operation management of rainstorm waterlogging disasters in important parts of the urban infrastructure.
Huang Haiping   +5 more
core   +1 more source

Analysis of heavy rain caused by typhoon "Fitow" in Huzhou(台风“菲特”引发湖州大暴雨的成因分析)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2014
利用MICAPS资料和中小尺度地面自动站资料,对2013年10月6~8日台风“菲特”影响湖州地区时的大暴雨过程进行分析发现,大暴雨降水分3个阶段:台风“菲特”外围云带中的强降雨、台风本体范围及边缘的暴雨和台风“菲特”减弱后的倒槽和北上近海转向的台风“丹娜丝”外围东北气流的叠加暴雨.分析可知,东北急流带来的充沛水汽、高能高湿的能量输送、强烈的上升运动和高层辐散低层辐合等为大暴雨的发生发展提供了十分有利的环境场.天荒坪山区朝东北开口并由东北向西南多级收缩抬升的地形为暴雨的增幅创造了有利条件 ...
SUNJianming(孙建明)   +3 more
doaj   +1 more source

山东临朐2019年“8·10”特大暴雨水土保持调查

open access: yesShuitu Baochi Xuebao, 2021
2019年8月10日6时至12日6时,受台风"利奇马"影响,山东淄博、东营、潍坊等地区发生特大暴雨天气,造成了严重的水土流失灾害。暴雨发生后,水利部水土保持监测中心组织调查人员,运用现代技术手段对暴雨中心典型小流域进行了系统、全面的水土保持实地调查。结果表明:(1)本次特大暴雨降雨量为570.6 mm,最大24 h降雨507.6 mm,均超过历史记录;(2)本次暴雨造成严重水土流失灾害,典型小流域水蚀模数达9 741 t/km2,是多年平均值的2.4倍,梯田损毁率达5.96%,河道淤积厚度达10~30 ...
林祚顶   +6 more
doaj  

Effects of Different Vegetation Coverage of Vetiver in Reducing Ditch Erosion and C, N, P Loss [PDF]

open access: yes, 2023
[Objective] The influences of plants on reducing ditch erosion and C, N and P loss were studied in order to provide technical support for the prevention of ditch erosion and pollution control.
Chen Tingting   +8 more
core   +1 more source

The comparative analysis of two “7.17” torrential rainfalls in Huzhou Area(湖州地区2次“7. 17”特大暴雨过程的对比分析)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2014
利用湖州市中尺度自动站资料、风廓线资料以及NCEP再分析资料对2011年7月17日和2012年7月17 日湖州地区发生的2次特大暴雨过程的降水特征、环流形势、水汽条件和动力抬升机制进行了对比分析,发现2次“7. 17”特大暴雨的发生具有偶然性也有必然性.(1)副高位置偏高,其西南侧热带气旋活跃,提供强盛偏东气流,与槽前的西南气流汇合,在副高边缘形成有利于强降水发生的天气背景.(2)偏东气流的加强对于特大暴雨的触发有至关重要的作用,可以作为判断夏季特大暴雨爆发时段的一个关键信号.(3 ...
XIANGHua(向华)   +5 more
doaj   +1 more source

Spatiotemporal Characteristics of Vegetation Cover and Climate Driving Factors in Sichuan Province from 2000 to 2020 [PDF]

open access: yes, 2022
[Objective] The vegetation change and important climate factors influencing fractional vegetation coverage (FVC) in Sichuan Province were analyzed in order to provide theoretical support for the sustainable development of natural resources in this area. [
Sun Mengxin   +4 more
core   +1 more source

Analysis on the moist potential vorticity for a heavy rainstorm process in the southeast coastal areas of China(东南沿海一次大暴雨过程的湿位涡分析)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2015
应用自动站和NCEP 1°×1°再分析资料,对2010年7月24日发生在东南沿海的一次大暴雨过程的湿位涡场进行了诊断分析.结果表明:鞍形场低层东南风低空急流输送的暖湿气流和对流层中低层来自东北方向的冷空气相互交汇是此次大暴雨发生的触发因子,大暴雨期间暴雨区上空对流层中低层等θse线较稀疏且陡立,大气对流稳定度较低,有利于湿斜压涡度发展,大暴雨发生在600 hPa上MPV、MPV1和MPV2正负过渡带附近,MPV1下负上正垂直叠加配置是暴雨发生发展的有利形势,湿位涡在900 hPa以下具有MPV1为负 ...
ZHANGLingjie(张灵杰)
doaj   +1 more source

Characteristics of rainstorm in northwestern mountainous area of Zhejiang(浙江西北部山地暴雨特征)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2019
利用2005-2017 年14 个自动气象站和2015-2017 年66 个自动气象站的降水资料,对浙西北暴雨的时空分布特征进行了分析,发现浙西北雨量分布呈西南、东北多,中部、东部少的特征,有2 个暴雨中心,一个是位于清凉峰到大明山一带的梅汛期暴雨中心,另一个为天目山北部市岭一带的台风暴雨中心;暴雨存在明显的月、日变化特征,7-8 月暴雨最多,春雨期暴雨主要出现在日落后,梅雨期主要出现在早晨前后,其次是午后,盛夏时主要出现在午后;6 月前暴雨集中在西部、南部,7 月出现明显转折,西南暴雨迅速减少 ...
HUANGZhe(黄哲)   +4 more
doaj   +1 more source

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