GSTDTAP

浏览/检索结果: 共19条,第1-10条 帮助

已选(0)清除 条数/页:   排序方式:
Extreme rainfall triggered the 2018 rift eruption at Kilauea Volcano 期刊论文
NATURE, 2020, 580 (7804) : 491-+
作者:  Cloutier, Richard;  Clement, Alice M.;  Lee, Michael S. Y.;  Noel, Roxanne;  Bechard, Isabelle;  Roy, Vincent;  Long, John A.
收藏  |  浏览/下载:33/0  |  提交时间:2020/05/13

The May 2018 rift intrusion and eruption of Kilauea Volcano, Hawai'  i, represented one of its most extraordinary eruptive sequences in at least 200 years, yet the trigger mechanism remains elusive(1). The event was preceded by several months of anomalously high precipitation. It has been proposed that rainfall can modulate shallow volcanic activity(2,3), but it remains unknown whether it can have impacts at the greater depths associated with magma transport. Here we show that immediately before and during the eruption, infiltration of rainfall into Kilauea Volcano'  s subsurface increased pore pressure at depths of 1 to 3 kilometres by 0.1 to 1 kilopascals, to its highest pressure in almost 50 years. We propose that weakening and mechanical failure of the edifice was driven by changes in pore pressure within the rift zone, prompting opportunistic dyke intrusion and ultimately facilitating the eruption. A precipitation-induced eruption trigger is consistent with the lack of precursory summit inflation, showing that this intrusion-unlike others-was not caused by the forceful intrusion of new magma into the rift zone. Moreover, statistical analysis of historic eruption occurrence suggests that rainfall patterns contribute substantially to the timing and frequency of Kilauea'  s eruptions and intrusions. Thus, volcanic activity can be modulated by extreme rainfall triggering edifice rock failure-a factor that should be considered when assessing volcanic hazards. Notably, the increasingly extreme weather patterns associated with ongoing anthropogenic climate change could increase the potential for rainfall-triggered volcanic phenomena worldwide.


Immediately before and during the eruption of Ki & x304  lauea Volcano in May 2018, anomalously high rainfall increased the pore pressure in the subsurface to its highest level in 50 years, causing weakening and mechanical failure of the edifice.


  
Future changes in five extreme precipitation indices in the lowlands of Romania 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2019, 39 (15) : 5720-5740
作者:  Harpa, Gabriela Victoria;  Croitoru, Adina-Eliza;  Djurjevic, Vladimir;  Horvath, Csaba
收藏  |  浏览/下载:14/0  |  提交时间:2020/02/17
ClimPACT2  extreme precipitation indices  future changes  modelled data  Romania  
Causes of future Mediterranean precipitation decline depend on the season 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2019, 14 (11)
作者:  Brogli, Roman;  Sorland, Silje Lund;  Kroner, Nico;  Schar, Christoph
收藏  |  浏览/下载:7/0  |  提交时间:2020/02/17
pseudo-global warming  subtropical precipitation decline  European regional climate modeling  climate change drivers  water stress  land-ocean contrast  circulation changes  
Examining the salinity change in the upper Pacific Ocean during the Argo period 期刊论文
CLIMATE DYNAMICS, 2019, 53: 6055-6074
作者:  Li, Guancheng;  Zhang, Yuhong;  Xiao, Jingen;  Song, Xiangzhou;  Abraham, John;  Cheng, Lijing;  Zhu, Jiang
收藏  |  浏览/下载:12/0  |  提交时间:2019/11/27
Upper layer salinity changes  Precipitation  Ocean advection  Interdecadal Pacific Oscillation (IPO)  Surface winds  
Projection and uncertainty of precipitation extremes in the CMIP5 multimodel ensembles over nine major basins in China 期刊论文
ATMOSPHERIC RESEARCH, 2019, 226: 122-137
作者:  Xu, Kai;  Xu, Bingbo;  Ju, Jiali;  Wu, Chuanhao;  Dai, Heng;  Hu, Bill X.
收藏  |  浏览/下载:7/0  |  提交时间:2019/11/27
Precipitation extremes  Projected changes  Uncertainty  ETCCDI  CMIP5  China  
Global and Regional Increase of Precipitation Extremes Under Global Warming 期刊论文
WATER RESOURCES RESEARCH, 2019, 55 (6) : 4901-4914
作者:  Papalexiou, Simon Michael;  Montanari, Alberto
收藏  |  浏览/下载:4/0  |  提交时间:2019/11/26
global precipitation extremes  frequency changes  regional and local increases  stationarity  
Spatiotemporal changes in snow cover over China during 1960-2013 期刊论文
ATMOSPHERIC RESEARCH, 2019, 218: 183-194
作者:  Tan Xuejin;  Wu Zhenni;  Mu Xingmin;  Gao Peng;  Zhao Guangju;  Sun Wenyi;  Gu Chaojun
收藏  |  浏览/下载:7/0  |  提交时间:2019/04/09
Mean daily snow depth  The number of snow cover days  Spatial-temporal variations  Trend  Abrupt changes  Precipitation  Temperature  China  
Observed changes in convective and stratiform precipitation in Northern Eurasia over the last five decades 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2019, 14 (4)
作者:  Chernokulsky, Alexander;  Kozlov, Fedor;  Zolina, Olga;  Bulygina, Olga;  Mokhov, Igor I.;  Semenov, Vladimir A.
收藏  |  浏览/下载:6/0  |  提交时间:2019/04/09
precipitation extremes  convective showers  precipitation types  stratiform precipitation  regional climate changes  surface observation  
Modeling distributional changes in winter precipitation of Canada using Bayesian spatiotemporal quantile regression subjected to different teleconnections 期刊论文
CLIMATE DYNAMICS, 2019, 52: 2105-2124
作者:  Tan, Xuezhi;  Gan, Thian Yew;  Chen, Shu;  Liu, Bingjun
收藏  |  浏览/下载:8/0  |  提交时间:2019/04/09
Spatiotemporal quantile regression  Distribution changes  Teleconnections  Precipitation  Large-scale climate patterns  
Non-uniform changes in different categories of precipitation intensity across China and the associated large-scale circulations 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2019, 14 (2)
作者:  Miao, Chiyuan;  Duan, Qingyun;  Sun, Qiaohong;  Lei, Xiaohui;  Li, Hu
收藏  |  浏览/下载:4/0  |  提交时间:2019/04/09
non-uniform changes  precipitation  China  large-scale circulation