Results 61 to 70 of about 17,401 (230)

Studying Africa's hydroclimate history over the last 2000 years [PDF]

open access: yes, 2016
Water-resource availability is one of the most important environmental factors on which Africa’s agricultural societies are reliant. However, our knowledge of the natural background variability of rainfall and drought over Africa is currently still ...
De Cort, Gijs
core   +2 more sources

Exploring the Spatiotemporal Carbon Fluxes in a Typical Subtropical Shallow Lake Using a Modified LAKE Model

open access: yesWater Resources Research, Volume 62, Issue 4, April 2026.
Abstract Lakes are an important type of surface water body, while their carbon emissions and the underlain mechanisms that potentially vary among different lakes remain highly uncertain. In this study, we modified the LAKE model and successfully applied it, along with multiple complementary machine learning methods, to Taihu Lake, a typical subtropical
Zichun Zhu   +6 more
wiley   +1 more source

Microbial and Geochemical Evidence of Permafrost Formation at Mamontova Gora and Syrdakh, Central Yakutia

open access: yesFrontiers in Earth Science, 2021
Biotracers marking the geologic history and permafrost evolution in Central Yakutia, including Yedoma Ice Complex (IC) deposits, were identified in a multiproxy analysis of water chemistry, isotopic signatures, and microbial datasets.
M. Yu. Cherbunina   +11 more
doaj   +1 more source

Groundwater pollution in quaternary aquifer of Vitoria - Gasteiz (Basque Country, Spain) [PDF]

open access: yes, 1997
As a result of diverse changes in land use and in water-resource management in the high basin of the Zadorra River (Basque Country), an important loss of water resources and an intense contamination by nitrogen compounds has taken place.
Antigüedad, Iñaki   +5 more
core   +1 more source

Enhancing Solute Mass‐Transfer in Low‐Permeability Zones in Heterogeneous Porous Media Combining Advective and Electrokinetic Transport

open access: yesWater Resources Research, Volume 62, Issue 4, April 2026.
Abstract The spatially variable distribution of hydraulic conductivity in heterogeneous subsurface formations controls groundwater flow and solute transport. While the presence of more permeable zones facilitates rapid advective transport, contaminants often accumulate within low‐permeability zones.
R. Sprocati   +3 more
wiley   +1 more source

Elemental hydrochemistry assessment on its variation and quality status in Langat River, Western Peninsular Malaysia. [PDF]

open access: yes, 2013
This paper discusses the hydrochemistry variation and its quality status in Langat River, based on the chemistry of major ions, metal concentrations and suitability for drinking purposes.
AF Mohamed   +40 more
core   +1 more source

The Evolving Roles of Electrical Geophysical Methods for In Situ Remediation Assessment: Progress and Perspectives

open access: yesWater Resources Research, Volume 62, Issue 4, April 2026.
Abstract In situ remediation of contaminated soil and groundwater demands real‐time monitoring to capture complex subsurface dynamics. Geophysical methods, particularly electrical resistivity tomography (ERT) and induced polarization (IP), offer non‐ or minimally invasive, high‐resolution imaging of subsurface changes during remediation.
Teng Xia   +6 more
wiley   +1 more source

THERMALISM AND HYDROCHEMISTRY AS EVIDENCES OF REGIONAL

open access: yesRevista Águas Subterrâneas, 2010
Limits to regional flow in Guarani Aquifer System (GAS), produced by two lineaments, named Rio das Antas (RAL) and Rio Forqueta (RFL), had been identified in northeast Rio Grande do Sul State, Brazil. Thermometry and hydrochemistry were decisive criteria
Arnoldo Giardin   +1 more
doaj   +1 more source

Determination of coastal ground and surface water processes and character by use of hydrochemistry and stable isotopes, Fraser Coast, Queensland [PDF]

open access: yes, 2012
This study was part of an integrated project developed in response to concerns regarding current and future land practices affecting water quality within coastal catchments and adjacent marine environments.
Larsen, Genevieve R.
core   +1 more source

Hydrochemistry of Umm Er Radhuma Groundwater

open access: yesJournal of Geoscience and Environment Protection, 2021
Umm Er Radhuma Aquifer (UER) is the most important groundwater aquifer in Saudi Arabia, extending over 1.6 M·km2 in the eastern part of the Arabian Peninsula, forming the main aquifer throughout the Rub’ Al-Khali (RAK). Groundwater salinity increased from west to east, reaching more than 27,000 mg/L near the border with the United Arab Emirates ...
openaire   +2 more sources

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