Results 91 to 100 of about 1,040,256 (264)

Numerical simulation study on the evolution of the temperature field and frozen wall in fractured rock mass

Deep Underground Science and Engineering, EarlyView.
The evolution of the temperature field and frozen wall under different fracture conditions was examined by an artificial ground freezing‐based thermal‐hydraulic coupled model. It was observed that fracture inclination affects the interaction extent of freezing pipes and fracture, while phase transition extent is the dominant factor for heat transfer in
Chenyi Zhang, Tingting Luo, Tao Zhang, Tao Han, Xiaodong Zhao, Haipeng Li, Yanfei Ma, Faxing Zhang, Madhusudhan Bangalore Narasimha Murthy, Weihao Yang   +9 more
wiley   +1 more source

Elevated methane alters dissolved organic matter composition in the Arctic Ocean cold seeps

Frontiers in Earth Science, 2023
Cold seeps release methane (CH4) from the seafloor to the water column, which fuels microbially mediated aerobic methane oxidation (MOx). Methane-oxidising bacteria (MOB) utilise excess methane, and the MOB biomass serves as a carbon source in the food ...
Muhammed Fatih Sert, Hannah D. Schweitzer, Hannah D. Schweitzer, Tim R. de Groot, Timo Kekäläinen, Janne Jänis, Hans C. Bernstein, Hans C. Bernstein, Bénédicte Ferré, Friederike Gründger, Dimitri Kalenitchenko, Dimitri Kalenitchenko, Helge Niemann, Helge Niemann, Helge Niemann   +14 more
doaj   +1 more source

Temporal variability of gas seeps offshore New Zealand: Multi-frequency geoacoustic imaging of the Wairarapa area, Hikurangi margin [PDF]

, 2008
Cold seeps of the Wairarapa area situated around 1000 metres water depth on the Hikurangi margin offshore New Zealand’s North Island have been investigated using multibeam bathymetry, 75 and 410 kHz sidescan sonar imagery as well as 2-8 kHz Chirp ...
Greinert, J., Jones, A. T., Klaucke, I., Petersen, J., Weinrebe, W.   +4 more
core  

Calcification is not the Achilles' heel of cold-water corals in an acidifying ocean. [PDF]

, 2015
Ocean acidification is thought to be a major threat to coral reefs: laboratory evidence and CO2 seep research has shown adverse effects on many coral species, although a few are resilient.
Al-Horani, Albright, Aliani, Allemand, Carreiro-Silva, Cohen, Comeau, Davies, Dickson, Dodds, Edmunds, Erez, Fabricius, Findlay, Form, Försterra, Guinotte, Hennige, Hoegh-Guldberg, Houlbrèque, Houlbrèque, Jackson, Jantzen, Jantzen, Kerrison, Langdon, Lunden, Lunden, Maier, Maier, Maier, McCulloch, McCulloch, Mehrbach, Movilla, Movilla, Mueller, Naumann, Naumann, Naumann, Orejas, Orr, Pörtner, Roberts, Rodolfo-Metalpa, Rodolfo-Metalpa, Tambutté, Thomsen, Thresher, Tittensor, Tsounis, Venn, Woesik   +52 more
core   +2 more sources

Focused Fluid Flow, Shallow Gas Hydrate, and Cold Seep in the Qiongdongnan Basin, Northwestern South China Sea

Geofluids, 2021
The 3D seismic data acquired in the central Qiongdongnan Basin, northwestern South China Sea, reveal the presence of shallow gas hydrate, free gas, and focused fluid flow in the study area, which are indicated by multiple seismic anomalies, including ...
M. Geng, Ruwei Zhang, Shengxiong Yang, Jun Guo, Zongheng Chen   +4 more
semanticscholar   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Gas Hydrates: It's a Gas [PDF]

In this activity, students will discover the importance of carbon, where carbon is stored on Earth, and that the largest reservoir of carbon is in the form of gas hydrates where methane and other hydrocarbon gases are trapped in a lattice of water ...

core   +4 more sources

Towards Water, Food and Energy Security: The Global Challenges and Possible Solutions for a Holistic Vision of Sustainability

Irrigation and Drainage, EarlyView.
ABSTRACT This invited paper gives an overview of the challenges the world is facing and offers a possible solution for water and food security within the holistic integrated concept of the water–energy–food (WEF) nexus. The paper summarizes the experience the author gained through working on various research projects at national and international ...
Ragab Ragab
wiley   +1 more source

Foraminifera associated with cold seeps in marine sediments

Frontiers in Marine Science, 2023
Cold seep foraminifera have attracted considerable attention as they provide valuable insights into the study of cold seeps. This study provides a comprehensive overview of the manifestations of foraminifera in cold seep environments and methane seepage ...
Yinghan Lu, Hailin Yang, Baoqi Huang, Yujia Liu, Hailong Lu   +4 more
doaj   +1 more source

User‐Relevant Climate Indices and Associated Uncertainties From Transient Convection‐Permitting Climate Model Projections

International Journal of Climatology, EarlyView.
A transient ensemble of convection‐permitting climate simulations is used to compute bias‐corrected user‐relevant climate indices for Germany under recent and future climate conditions, both considering high spatial resolution and uncertainty estimations. For high temperature indices, a clear increase is observed, for example, for hot days and tropical
Joaquim G. Pinto, Marie Hundhausen, Annabell Weber, Regina Kohlhepp, Christine Mihalyfi‐Dean, Janus W. Schipper, Hendrik Feldmann   +6 more
wiley   +1 more source