Results 21 to 30 of about 563 (136)

Spatiotemporal variability of hydrogen and oxygen stable isotopes in the Han River Basin and the regional hydrological implication

Frontiers in Earth Science
Characterization of the spatiotemporal variability of stable isotopes (δ18O and δD) in the surface water of the Han River Basin (HRB) is critical for tracing basin-scale hydrological cycle processes, identifying moisture-source dynamics, and optimizing ...
Na Wu, Ya-Ni Yan, Jun-Wen Zhang, Mei-Li He, Dong Zhang, Yu-Cong Fu, Gui-Shan Zhang, Zhi-Qi Zhao   +7 more
doaj   +1 more source

Potential and limits of stable isotopes (δ18O and δD) to detect parasitic water in sewers of oceanic climate cities

Journal of Hydrology: Regional Studies, 2018
Study region: Brussels (Belgium) and Nantes (France), two cities located in oceanic settings. Study focus: The article assesses the capabilities of detecting the presence of groundwater in sewers and waste-water in storm sewers (also called parasitic ...
K. De Bondt, F. Seveno, G. Petrucci, F. Rodriguez, C. Joannis, Ph. Claeys   +5 more
doaj   +1 more source

Distribution of the stable isotopes (δ18O, δD и δ13C) in natural waters of the Baydar valley (Crimean Peninsula) [PDF]

E3S Web of Conferences, 2019
Results of the study of the stable isotopes (δ18O, δD and δ13C) distribution in natural waters of the Baydar valley (southwestern part of the Crimean Peninsula) are presented.
Novikov Dmitry A., Nichkova Larisa A., Chernykh Anatoliy V., Dultsev Fedor F., Pyryaev Alexander N., Sigora Galina A., Khomenko Tamara Yu.   +6 more
doaj   +1 more source

Research on the hydrologic cycle characteristics using stable isotopes of oxygen and hydrogen in the Jinxiuchuan Basin

Tecnología y ciencias del agua, 2017
Wang, T., Xu, Z., Zhang, S., Zhang, L., & Zhao, Z. (MarchApril, 2017). Research on the hydrologic cycle characteristics using stable isotopes of oxygen and hydrogen in the Jinxiuchuan Basin.
Wang Tong, Xu Zhenghe, Zhang Shengdong, Zhang Lizhi, Zhao Zhiqiang   +4 more
doaj   +1 more source

Mechanism of Water Cycle Inferred from the Distribution of Hydrogen and Oxygen Stable Isotopes in Groundwater along the Evaporation Line in the Korla Region

Yankuang ceshi
In Northwest China, water resources are in short supply, and the evaporation process typically represents the ineffective depletion of water resources, thus constituting a crucial aspect in water cycle research.
Hongyun MA, Chengzhu LI, Hongna MA, Huaqi WANG, Yane LI   +4 more
doaj   +1 more source

Stable isotopes and hydrogeochemical evolutions of groundwater from a typical seismic fault zone in the Mt. Lushan region, Eastern China

Frontiers in Earth Science, 2023
We analyzed the major chemical components, hydrogen (δD) and oxygen isotopes (δ18O), and tritium activity in groundwater from Jiujiang well number 2 (JJ2) as well as atmospheric precipitation and water from the Maweishui spring and Tianhuajing reservoir ...
Zhicheng Bao, Le Hu, Jian Xiao, Xiaohui Zha, Jian Lv, Ying Zhao   +5 more
doaj   +1 more source

The Paleoenvironment of the Ndutu Bed at Olduvai Gorge in the Context of Middle Stone Age Expansion in Eastern Africa: A Multiproxy Approach to Ungulate Analyses From the Victoria Cabrera Site and Dorothy Garrod Site (MIS 5)

International Journal of Osteoarchaeology, Volume 36, Issue 4, Page 1100-1113, July/August 2026.
ABSTRACT The study of the Eastern African archaeological record is essential for understanding the origin and evolution of the Middle Stone Age (MSA). However, Olduvai Gorge, one of the primary regions in human evolution studies, has few sites associated with the MSA.
Juan Marín, Iván Ramírez‐Pedraza, David M. Martín‐Perea, Irene Solano‐Megías, Natalia Abellán‐Beltrán, Antonio Rodríguez‐Hidalgo, Agness Gidna, Audax Mabulla, José‐Manuel Maíllo‐Fernández   +8 more
wiley   +1 more source

Variability and Complexity of Environmental Drivers on Catchment Transit Times Across Space: A Systematic Review

WIREs Water, Volume 13, Issue 4, July/August 2026.
Environmental drivers influence or modulate transport processes that finally determine catchment transit times. TTD represents transit time distribution; MTT is the mean transit time; and Fyw means young water fraction. ABSTRACT Catchment transit time, the time water takes to travel from precipitation to streamflow, is a key diagnostic of how ...
Xiao Shen, Ian Cartwright, Danlu Guo, Andrew Western   +3 more
wiley   +1 more source

Retrogressive Thaw Slump Morphology and Dynamics in Saline Permafrost in Northeast Greenland

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 7, July 2026.
Abstract Saline permafrost occupies a significant portion of permafrost in the Northern Hemisphere and extends several kilometers inland from the present Arctic coastline. However, its thermal conditions, mechanical degradation and geomorphological impacts are poorly understood.
S. Eppinger, T. H. Lorentzen, M. Angelopoulos, T. Ingeman‐Nielsen, D. A. Rudd, M. Marcer, M. Krautblatter   +6 more
wiley   +1 more source

Underlying Climate Controls in Triple Oxygen (16 O, 17 O, 18 O) and Hydrogen (1 H, 2 H) Isotopes Composition of Rainfall (Central Pyrenees)

Frontiers in Earth Science, 2021
Studies of rainfall isotopic composition in the Iberian Peninsula are scarce, and to date, none of them have provided analyses of the triple oxygen isotopes, preventing from the complete understanding of current atmospheric processes in this region.
Reyes Giménez, Reyes Giménez, Miguel Bartolomé, Fernando Gázquez, Fernando Gázquez, Miguel Iglesias, Ana Moreno   +6 more
doaj   +1 more source