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An Improved Optimization Scheme for Representing Hillslopes and Depressions in Karst Hydrology 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (5)
作者:  Xu, Chaohao;  Xu, Xianli;  Liu, Meixian;  Li, Zhenwei;  Zhang, Yaohua;  Zhu, Jingxuan;  Wang, Kelin;  Chen, Xi;  Zhang, Zhicai;  Peng, Tao
收藏  |  浏览/下载:34/0  |  提交时间:2020/07/02
VarKarst  hydrological model  hillslopes and depressions  karst ecosystems  Earth'  s critical zone  ecohydrology  
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.


  
Gravity Monitoring of Underground Flash Flood Events to Study Their Impact on Groundwater Recharge and the Distribution of Karst Voids 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (4)
作者:  Watlet, A.;  Van Camp, M.;  Francis, O.;  Poulain, A.;  Rochez, G.;  Hallet, V.;  Quinif, Y.;  Kaufmann, O.
收藏  |  浏览/下载:7/0  |  提交时间:2020/07/02
karst  floods  hydrology  superconducting gravimeter  gravity  monitoring  
Improved Understanding of the Link Between Catchment-Scale Vegetation Accessible Storage and Satellite-Derived Soil Water Index 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (3)
作者:  Bouaziz, Laurene J. E.;  Steele-Dunne, Susan C.;  Schellekens, Jaap;  Weerts, Albrecht H.;  Stam, Jasper;  Sprokkereef, Eric;  Winsemius, Hessel H. C.;  Savenije, Hubert H. G.;  Hrachowitz, Markus
收藏  |  浏览/下载:6/0  |  提交时间:2020/07/02
Ephemeral Ponds: Are They the Dominant Source of Depression-Focused Groundwater Recharge? 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (3)
作者:  Bam, Edward K. P.;  Ireson, Andrew M.;  van Der Kamp, Garth;  Hendry, Jim M.
收藏  |  浏览/下载:6/0  |  提交时间:2020/07/02
C-14-Dating Model for Groundwater Affected by CO2 Inputs From Deep Underground Formations 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (3)
作者:  Wang, Tao;  Chen, Jiansheng;  Zhang, Chenming;  Zhan, Lucheng;  Li, Ling
收藏  |  浏览/下载:9/0  |  提交时间:2020/07/02
Fog Interception Maintains a Major Waterfall Landscape in Southwest China Revealed by Isotopic Signatures 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (3)
作者:  Zhan, Lucheng;  Chen, Jiansheng;  Zhang, Chenming;  Wang, Tao;  Xin, Pei;  Li, Ling
收藏  |  浏览/下载:17/0  |  提交时间:2020/07/02
Feasibility of Improving Groundwater Modeling by Assimilating Evapotranspiration Rates 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (2)
作者:  Gelsinari, Simone;  Doble, Rebecca;  Daly, Edoardo;  Pauwels, Valentijn R. N.
收藏  |  浏览/下载:5/0  |  提交时间:2020/07/02
groundwater  data assimilation  ensemble Kalman filter  unsaturated zone  evapotranspiration  MODFLOW  
Information-Based Machine Learning for Tracer Signature Prediction in Karstic Environments 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (2)
作者:  Mewes, B.;  Oppel, H.;  Marx, V.;  Hartmann, A.
收藏  |  浏览/下载:8/0  |  提交时间:2020/07/02
Machine learning  entropy  information content  karst  hydrograph separation  
Diagnostic Analysis of Bank Storage Effects on Sloping Floodplains 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (2)
作者:  Liang, Xiuyu;  Zlotnik, Vitaly A.;  Zhang, You-Kuan;  Xin, Pei
收藏  |  浏览/下载:8/0  |  提交时间:2020/07/02
stream bank storage  bank slope  stream stage  semianalytical solution  aquifer response