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This book describes recent advances in geomechanics for energy and the sustainable environment. Four research articles, related to high-level radioactive nuclear waste disposal stability, geological effect and wellbore stability considerations for methane gas hydrate production, and artificial soil freezing, are presented in this book. In addition, a comprehensive state-of-the-art review verifies the strong correlation between global climate change and the occurrence of geotechnical engineering hazards. The review also summarizes recent attempts to reduce CO2 emissions from civil and geotechnical engineering practices. Readers will gain ideas as to how we can deal with conventional and renewable energy sources and environment-related geotechnical engineering issues.
lattice Boltzmann method --- artificial frozen soil wall --- temperature field --- phase change --- numerical simulation --- global warming --- climate change --- greenhouse gas --- carbon dioxide --- extreme precipitation --- disaster --- geotechnical engineering hazard --- ground improvement --- soil stabilization --- triaxial shear --- methane hydrate --- clay content --- mechanical property --- hydrate mining --- shear shrinkage --- methane hydrate --- shear/normal coupling stiffness --- slippage at the interface --- wellbore stability analysis --- depressurization method --- granite --- HLW disposal --- plastic strain --- temperature --- CWFS --- damage process --- yield condition --- strength criterion --- dilation angle --- HLW disposal --- direct shear experiment --- normal stress --- plastic shear strain --- constitutive model
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Hydroclimatic extremes, such as floods and droughts, affect aspects of our lives and the environment including energy, hydropower, agriculture, transportation, urban life, and human health and safety. Climate studies indicate that the risk of increased flooding and/or more severe droughts will be higher in the future than today, causing increased fatalities, environmental degradation, and economic losses. Using a suite of innovative approaches this book quantifies the changes in projected hydroclimatic extremes and illustrates their impacts in several locations in North America, Asia, and Europe.
climate change --- Canada --- flooding frequency --- catchment based macroscale floodplain model --- uncertainty --- flood inundation maps --- climate change --- EURO-CORDEX projections --- continuous simulations --- climate change --- flood hazard --- flood risk --- return period --- streamflow regulation rules --- Canada --- consecutive dry days --- climate --- downscaled projections --- Southeast U.S. --- CMIP5 --- drought-flood abrupt alternation --- temporal and spatial evolution --- climate change --- water quality --- Copula function --- spatial analog --- extreme precipitation --- future precipitation at urban scale --- RCM uncertainty --- flood frequency analysis --- flash flood --- climate change and variability --- Boise River Watershed --- HSPF --- hydrological risk assessment --- extreme hydrologic events --- climate change impacts --- downscaling --- uncertainty --- ensembles --- water resource systems --- frequency estimates --- downscaling --- future projections --- RCP4.5 --- RCP8.5 --- changing of exceedance --- Northeastern US --- climate change --- climate projections --- extreme rainfall --- floods --- droughts
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Hydrological extremes have become a major concern because of their devastating consequences and their increased risk as a result of climate change and the growing concentration of people and infrastructure in high-risk zones. The analysis of hydrological extremes is challenging due to their rarity and small sample size, and the interconnections between different types of extremes and becomes further complicated by the untrustworthy representation of meso-scale processes involved in extreme events by coarse spatial and temporal scale models as well as biased or missing observations due to technical difficulties during extreme conditions. The complexity of analyzing hydrological extremes calls for robust statistical methods for the treatment of such events. This Special Issue is motivated by the need to apply and develop innovative stochastic and statistical approaches to analyze hydrological extremes under current and future climate conditions. The papers of this Special Issue focus on six topics associated with hydrological extremes: Historical changes in hydrological extremes; Projected changes in hydrological extremes; Downscaling of hydrological extremes; Early warning and forecasting systems for drought and flood; Interconnections of hydrological extremes; Applicability of satellite data for hydrological studies.
rainfall --- monsoon --- high resolution --- TRMM --- drought prediction --- APCC Multi-Model Ensemble --- seasonal climate forecast --- machine learning --- sparse monitoring network --- Fiji --- drought analysis --- ANN model --- drought indices --- meteorological drought --- SIAP --- SWSI --- hydrological drought --- discrete wavelet --- global warming --- statistical downscaling --- HBV model --- flow regime --- uncertainty --- reservoir inflow forecasting --- artificial neural network --- wavelet artificial neural network --- weighted mean analogue --- variation analogue --- streamflow --- artificial neural network --- simulation --- forecasting --- support vector machine --- evolutionary strategy --- heavy storm --- hyetograph --- temperature --- clausius-clapeyron scaling --- climate change --- the Cauca River --- climate variability --- ENSO --- extreme rainfall --- trends --- statistical downscaling --- random forest --- least square support vector regression --- extreme rainfall --- polynomial normal transform --- multivariate modeling --- sampling errors --- non-normality --- extreme rainfall analysis --- statistical analysis --- hydrological extremes --- stretched Gaussian distribution --- Hurst exponent --- INDC pledge --- precipitation --- extreme events --- extreme precipitation exposure --- non-stationary --- extreme value theory --- uncertainty --- flood regime --- flood management --- Kabul river basin --- Pakistan --- extreme events --- innovative methods --- downscaling --- forecasting --- compound events --- satellite data
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