Review of reservoir challenges associated with subsurface hydrogen storage …
Therefore, a bulk energy storage system is highly desirable to keep the surplus energy as a buffer while meeting the continuous energy demand [9]. In this context, certain sources of hydrogen qualify as a zero‑carbon energy supply, with the potential to be a viable energy vector in an eco-friendly manner [ 10 ].
Cooling of hydrothermal fluids rich in carbon dioxide can create …
Studies indicate that hypogenic karst, which often forms by thermal brines originating deep within the crust, is linked to major geological processes such as: diagenesis, fluid-rock …
Residual carbonate karst reservoir reconstructed by karst …
Composite stratigraphic column of the upper assemblage of the formation. (a) Stratigraphic column of karst within lithology. Well S474, 3485–3563 m. (b) Correlation among Wells S131-T108-J6-S474-Y2-Y6.
Refined karst feature and fault identification through integrated wave field separation and imaging of Diffraction energy …
In this abstract, a case study from offshore Indonesia is showcased with examples emphasizing integrated wave field separation methods with the objective of diffraction imaging towards refined karst feature and fault identification. For imaging optimally all diffraction energy, pre-migration and post-migration methods have been integrated. The …
Subsurface drainage networks in karst aquifers form mixed-flow systems that integrate flow paths with markedly different velocities, ranging from low in the matrix and small fractures to very high …
Evolution and Simulation of Terrestrial Ecosystem …
In order to understand the relationship between the terrestrial ecosystem and carbon storage change and to explore ways to enact sustainable development in karst areas, the objectives of this study …
Field Courses | WKU Karst Field Studies | United States
Karst Field Studies leslie.north@wku 1906 College Heights Blvd #31066 Bowling Green, KY 42101-1066 SUBSCRIBE TO OUR MAILING LIST Send bottom of page ...
Estimating Forest Aboveground Biomass Combining Pléiades Satellite Imagery and Field Inventory Data in the Peak–Cluster Karst …
The mountainous region of southwest China has the largest karst geomorphology in China and in the world. Quantifying the forest aboveground biomass in this karst region is of great significance for the investigation of carbon storage and carbon cycling in terrestrial ecosystems. In this study, the actual measured aboveground …
Karst Spring Processes and Storage Implications in High …
Karst springs and aquifers are significant resources globally yet continue to be poorly understood because of their heterogeneity in porosity and response to climate variability. In semiarid, mountainous regions where total precipitation and groundwater recharge rates ...
Global distribution of carbonate rocks and karst water resources
This study presents a statistical evaluation of WOKAM, focusing entirely on karst in carbonate rocks and addressing four main aspects: (1) global occurrence and …
Multi-field information comprehensive analysis of tunnel karst …
The occurrence conditions of water inrush are briefly introduced, this will be followed by a description of energy storage of water structure, dynamic performance of karst water, energy liberation ...
Water Storage, Movement, and Discharge of a Karst Aquifer Figure 12.3.5 Allogenic and Autogenic Recharge of a Karst Landscape In general, much of the water in a karst aquifer is stored in both matrix and fracture porosity, while the conduits (which usually ...
Water | Free Full-Text | Evolution of Main Water Cycle Fluxes in the Karst Mountain Region of Southwest China …
Distributed hydrological simulation in karst regions has always been a challenging task because of their unique hydrogeological characteristics. The karst mountain region of southwest China (KMRSC), one of the largest continuous karst areas in the world, contributes to about 54 percent of water supply in the basins. In spite of its …
Water | Free Full-Text | Characteristics and Connectivity Analysis of Hidden Karst in Jurong Pumped Storage …
Based on the hidden karst exposed in Jurong Pumped Storage Power Station, combined with the field exploration data, the temporal and spatial development characteristics of hidden karst in the power station area are analyzed using the methods of specific solubility and specific corrosion, water chemical composition analysis, borehole …
Graphene-Karst Cave Flower-like Ni–Mn Layered Double Oxides Nanoarrays with Energy Storage …
Semantic Scholar extracted view of "Graphene-Karst Cave Flower-like Ni–Mn Layered Double Oxides Nanoarrays with Energy Storage Electrode" by Hongyan Chen et al. DOI: 10.1016/J.ELECTACTA.2016.10.019 Corpus ID: 99370704 Graphene-Karst …
Water-storage capacity controls energy partitioning and water …
Research Article. Water-storage capacity controls energy partitioning and water use in karst ecosystems on the Edwards Plateau, Texas. James L. Heilman, …
Characterization of paleo-karst reservoir and faulted …
While in areas with less strong energy, faulted karst reservoir exhibits weak productivityand rapid watercut increase, implying a rule of "big fault big reservoir, small fault small reservoir ...
Karst water resources in a changing world: Review of …
We (1) start with an introduction to karst including its evolution and hydrogeology, (2) present an overview of karst exploration methods with a particular focus on the data requirements of karst models, …
IJERPH | Free Full-Text | Identification and Estimation …
Solute storage and release in groundwater are key processes in solute transport for groundwater remediation and protection. In karst areas where concentrated recharge conditions exist, pollution …
Pumped storage facilities have high round-trip storage efficiencies (more than 80%) and are the dominant form of energy storage internationally having 97% of the market share (IRENA). The long-life time (50 years plus) of pumped energy storage enables cost competitiveness with Battery Energy Storage Systems (BESS), even with the anticipated …
Global distribution of carbonate rocks and karst water resources
Karst regions offer a variety of natural resources such as freshwater and biodiversity, and many cultural resources. The World Karst Aquifer Map (WOKAM) is the first detailed and complete global geodatabase concerning the distribution of karstifiable rocks (carbonates and evaporites) representing potential karst aquifers. This study …
Karst Around the World Karst occurs throughout the world (Figure 12.1.4). Approximately 20% of the land area underlain by carbonate bedrock has the potential to form karst, [3] although almost a third of that is considered unsuitable for present day karst development due to unfavorable climate, burial with overlying materials, and low relief.
Numerical optimization of geothermal energy extraction from deep karst …
Buildings of more than 34,000,000m 2 areas are heated by hydro-geothermal energy in Tianjin, China. Karst reservoir is currently the most important hydro-geothermal resources under utilization. However, the imbalance between production and injection leads to a ...
Organic Carbon Storage in Four Ecosystem Types in …
The karst region in southwestern China is the largest in the world. In this study, we estimated biomass, soil quantity and ecosystem organic carbon stocks in four vegetation types typical of karst ecosystems …
Vegetation restoration in South China''s karst region under …
Karst regions cover approximately 15% of the Earth''s land area and are crucial for supplying drinking water to a quarter of the global population. There are 88 countries with karst landforms over 50,000 km 2 or …
Karst Hydro Proposes Underground Mines for Clean Energy Storage …
Karst Hydro''s Managing Director, Guy Richards, and Operations Director, Jessica Giger, emphasize the multifaceted benefits of repurposing mines for energy storage. They highlight the potential for South Africa to achieve energy independence and even become a net-energy exporter, leveraging its abundant renewable resources and …
Evolution of major environmental geological problems in karst …
Karst terrains are generally regarded as a fragile and vulnerable environment. China''s karst is mainly developed in pre-Triassic, old-phase, hard, compact carbonate rock. The lack of soil cover in bare karst land can enhance desertification. Its underground drainage system can aggravate both drought and flooding problems; the …
Field Courses | WKU Karst Field Studies | United States
Western Kentucky University through its Center for Human GeoEnvironmental Studies (CHNGES) and the Department of Earth, Environmental, & Atmospheric Sciences, in cooperation with the Mammoth Cave International Center for Science and Learning and the Cave Research Foundation, offers a selection of multi-day field courses focusing on cave …
Geosciences | Special Issue : Dynamics of Hydrological and Geomorphological Processes in Karst …
Karst aquifers and associated karst landforms are subject to manifold dynamic hydromechanical processes that occur on different spatio-temporal scales. Such processes can be investigated by a variety of geoscientific methods, of which the most widespread are remote sensing, near-surface geophysics, numerical modelling, …
Carbon cycling, storage, and sinks in karst ecosystems; Biodiversity, ecosystem processes, ecosystem services, and climate change; Spatial and temporal dynamics of vegetation (productivity, greenness, vegetation cover, leaf area index, phenology, etc.) in response to climate change and human activities;
Role of epikarst in near‐surface hydrological processes in a soil mantled subtropical dolomite karst slope: implications of field …
Epikarst exerts a strong control on run‐off generation in karst regions, but it is still unclear in karst regions. Our study aimed to demonstrate the effect of epikarst on near‐surface hydrological processes in a subtropical cockpit karst region of southwest China, using plot‐scale rainfall simulation experiments with different rainfall intensities …
Advances, challenges and perspective in modelling the …
Field-mapped karst networks models allow capturing many realistic features of karst conduits; however these models become limited to characterize phreatic …
