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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:61/0  |  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.


  
Precipitation variability and its relation to climate anomalies in the Bolivian Altiplano 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2019, 39 (4) : 2096-2107
作者:  Canedo-Rosso, Claudia;  Uvo, Cintia B.;  Berndtsson, Ronny
收藏  |  浏览/下载:23/0  |  提交时间:2019/11/26
AMM  AMO  austral summer precipitation  climate phenomena  ENSO  multivariate analysis  NAO  PDO  wavelet analysis  
Reviews and perspectives of high impact atmospheric processes in the Mediterranean 期刊论文
ATMOSPHERIC RESEARCH, 2018, 208: 4-44
作者:  Michaelides, Silas;  Karacostas, Theodore;  Luis Sanchez, Jose;  Retalis, Adrianos;  Pytharoulis, Ioannis;  Homar, Victor;  Romero, Romualdo;  Zanis, Prodromos;  Giannakopoulos, Christos;  Buehl, Johannes;  Ansmann, Albert;  Merino, Andres;  Melcon, Pablo;  Lagouvardos, Konstantinos;  Kotroni, Vassiliki;  Bruggeman, Adriana;  Ignacio Lopez-Moreno, Juan;  Berthet, Claude;  Katragkou, Eleni;  Tymvios, Filippos;  Hadjimitsis, Diofantos G.;  Mamouri, Rodanthi-Elisavet;  Nisantzi, Argyro
收藏  |  浏览/下载:32/0  |  提交时间:2019/04/09
Mediterranean  Atmospheric processes  Medicanes  Explosive cyclones  Climate change  Drought  Flood  Atmospheric chemistry  Dust and pollution  Extreme weather phenomena  Weather modification  
Symmetric and asymmetric components of anomalous tropospheric-mean horizontal fluxes of latent and sensible heat associated with ENSO events of variable magnitude 期刊论文
ATMOSPHERIC RESEARCH, 2017, 198
作者:  Kutta, Evan;  Hubbart, Jason A.;  Svoma, Bohumil M.;  Eichler, Timothy;  Lupo, Anthony R.
收藏  |  浏览/下载:13/0  |  提交时间:2019/04/09
ENSO phenomena  Symmetry of tropospheric response  Pacific North American pattern  North Atlantic Oscillation  Climate change  Teleconnections  
Evidence of added value in North American regional climate model hindcast simulations using ever-increasing horizontal resolutions 期刊论文
CLIMATE DYNAMICS, 2017, 48
作者:  Lucas-Picher, Philippe;  Laprise, Rene;  Winger, Katja
收藏  |  浏览/下载:14/0  |  提交时间:2019/04/09
Regional climate modeling  Added value  North America  Weather phenomena  Reanalysis