Results 41 to 50 of about 71,442 (339)

Achievements IN the world Hydrogeology in EARLY XXI century

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2015
In the article a review of the textbook «General Hydrogeology» by the prominent research hydrogeologist Shvartsev S.L. is presented. This textbook was published in 2012.
V. M. Matusevish, R. N. Abdrashitova
doaj   +1 more source

Effects of succession processes of marsh wetland and farmland on groundwater in the Sanjiang Plain

open access: yesShuiwen dizhi gongcheng dizhi, 2023
The Sanjiang Plain is an important base of commodity grain production and contains lots of marsh wetlands in China. In the past 60 years, with the continuous increase of farmland area and the adjustment of planting structure, the decline of wetland and ...
Huqun CUI   +6 more
doaj   +1 more source

Groundwater Constituents and Trace Elements in the Basement Aquifers of Africa and Sedimentary Aquifers of Asia: Medical Hydrogeology of Drinking Water Minerals and Toxicants

open access: yesEarth Systems and Environment, 2020
The use of groundwater, a major source of potable water, in developing countries has proven to be an invaluable resource for local populations. The ability to safely use this water for drinking, however, depends on its chemical quality, a factor ...
Chihurumnanya Belema Nwankwo   +3 more
semanticscholar   +1 more source

Temperature field and dynamic types of shallow groundwater in the northwest inland basin: A case study of the Jiuquan East Basin

open access: yes地质科技通报, 2022
Temperature is an inherent property of groundwater.Groundwater temperature field and dynamic characteristics are objective manifestations of groundwater flow system.Based on multi-point, long series and high precision groundwater temperature monitoring ...
Dechao Yin   +6 more
doaj   +1 more source

Initial geological considerations before installing ground source heat pump systems [PDF]

open access: yes, 2009
The performance of an open- or closed-loop ground source heat pump system depends on local geological conditions. It is important that these are determined as accurately as possible when designing a system, to maximize efficiency and minimize ...
Busby, Jon   +3 more
core   +1 more source

Hydrogeology of an urban weathered basement aquifer in Kampala, Uganda

open access: yesHydrogeology Journal, 2022
Weathered basement aquifers are vital sources of drinking water in Africa. In order to better understand their role in the urban water balance, in a weathered basement aquifer in Kampala, Uganda, this study installed a transect of monitoring piezometers,
P. Nyenje   +11 more
semanticscholar   +1 more source

Geometry and water quality of the unconfined aquifer near the Piracicaba river, Ipatinga/MG, Brazil

open access: yesHydroResearch, 2019
Groundwater is the main source of drinking water for the city of Ipatinga/MG, Brazil. However, there is a lack of study about hydrogeology in the region, as well as indications of quality alterations of water resources.
Débora Almeida de Oliveira   +1 more
doaj   +1 more source

Assessment of the development of aquifer management councils (COTAS) for sustainable groundwater management in Guanajuato, Mexico [PDF]

open access: yes, 2011
Collective groundwater management by water users—self-regulation—is increasingly advocated as a complement to state regulation. This article analyzes the attempts by the Guanajuato State Water Commission (CEAG) in central Mexico to promote user self ...
Hoogesteger van Dijk, J.D.   +2 more
core   +3 more sources

Supportive methods for assessing effective porosity and regulating karst aquifers

open access: yesActa Carsologica, 2010
Regulation of a karst aquifer implies engineering interventions designed to control its flow and manage its water reserves. One of the most important prerequisites for the feasibility and suc­cess of regulation projects is proper assessment of aquifer ef­
Zoran Stevanović   +2 more
doaj   +1 more source

A parsimonious parametrization of the Direct Sampling algorithm for multiple-point statistical simulations

open access: yesApplied Computing and Geosciences, 2022
Multiple-point statistics algorithms allow modeling spatial variability from training images. Among these techniques, the Direct Sampling (DS) algorithm has advanced capabilities, such as multivariate simulations, treatment of non-stationarity, multi ...
Przemysław Juda   +2 more
doaj   +1 more source

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