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1. Long-term hydrodynamic effects of the All-American Canal lining in an arid transboundary multilayer aquifer: Mexicali Valley in north-western Mexico

Author:
Lesser, Luis E.; Mahlknecht, Jürgen; López-Pérez, Mario
Source:
Environmental earth sciences 2019 v.78 no.16 pp. 504
ISSN:
1866-6280
Subject:
drawdown,   etc   ; aquifers; ecosystems; groundwater; groundwater flow; hydrodynamics; models; monitoring; seepage; water table; wells; wetlands; California; Mexico;     Show all 14 Subjects
Abstract:
... The construction of the 42-km long All-American Canal in southern California (USA) near the border with Mexico in the 1940s generated infiltration which raised groundwater levels in the area inducing groundwater to flow into the Mexicali Valley aquifer (Mexico). In the late 2000s, the USA started a controversial lining project to reduce infiltration below the canal, with far-reaching consequences. ...
DOI:
10.1007/s12665-019-8487-6

2. Corroborating stable isotopic data with pumping test data to investigate recharge and groundwater flow processes in a fractured rock aquifer, Rivirivi Catchment, Malawi

Author:
Kambuku, Dwight; Tsujimura, Maki; Kagawa, Shigeyoshi; Mdala, Hassan
Source:
Environmental earth sciences 2018 v.77 no.6 pp. 226
ISSN:
1866-6280
Subject:
drawdown,   etc   ; aquifers; evaporation; geochemistry; groundwater; groundwater flow; groundwater recharge; people; rain; semiarid zones; watersheds; wells; Malawi;     Show all 13 Subjects
Abstract:
... Fractured rock aquifers continue to support millions of people in arid and semiarid regions. However, due to heterogeneous nature of their hydrogeology and comparative low yields, research in these formations is regarded expensive, and thus, very little is known about their dominant hydrological processes. In this study, we corroboratively used pumping test and stable isotopic data to understand g ...
DOI:
10.1007/s12665-018-7403-9

3. In-well time-of-travel approach to evaluate optimal purge duration during low-flow sampling of monitoring wells

Author:
Harte, Philip T.
Source:
Environmental earth sciences 2017 v.76 no.6 pp. 251
ISSN:
1866-6280
Subject:
drawdown,   etc   ; groundwater; groundwater flow; hydraulic conductivity; models; monitoring; sampling; wells;     Show all 8 Subjects
Abstract:
... A common assumption with groundwater sampling is that low (<0.5 L/min) pumping rates during well purging and sampling captures primarily lateral flow from the formation through the well-screened interval at a depth coincident with the pump intake. However, if the intake is adjacent to a low hydraulic conductivity part of the screened formation, this scenario will induce vertical groundwater flow t ...
DOI:
10.1007/s12665-017-6561-5

4. Hydrochemical study of the Caldas Novas Thermal Complex (GO), Brazil

Author:
Lunardi, Marina; Bonotto, Daniel Marcos
Source:
Environmental earth sciences 2018 v.77 no.3 pp. 71
ISSN:
1866-6280
Subject:
drawdown,   etc   ; aquifers; environmental management; groundwater; hot springs; infiltration rate; population growth; rain; risk; temperature; tourists; volcanic activity; wells; Brazil;     Show all 14 Subjects
Abstract:
... The city of Caldas Novas, State of Goiás, Brazil, holds the largest thermal water complex in the planet not associated to with volcanism or other kinds of magmatism. Its structural control allows the fractures to be wide and deep enough so the waters can reach 1000 m depth. These waters are extracted mainly by deep wells, from the exploitation of the Paranoá and Araxá Aquifer Systems, emerging at ...
DOI:
10.1007/s12665-018-7240-x

5. Mitigating depletion of a porous geothermal aquifer in the Pannonian sedimentary basin

Author:
Rman, Nina; Lapanje, Andrej; Prestor, Joerg; O’Sullivan, Michael J.
Source:
Environmental earth sciences 2016 v.75 no.8 pp. 723
ISSN:
1866-6280
Subject:
drawdown,   etc   ; aquifers; basins; groundwater; groundwater flow; heat transfer; mathematical models; monitoring; sandstone; water table; wells; Slovenia;     Show all 12 Subjects
Abstract:
... This paper investigates depletion rates and available thermal water resources of the transboundary Upper Pannonian loose sandstone geothermal aquifer of the Mura Formation in the Mura-Zala sedimentary basin in north-eastern Slovenia, and outlines a regional reinjection strategy to mitigate depletion. The research monitoring network of 12 geothermal wells, which is being constantly upgraded since 2 ...
DOI:
10.1007/s12665-016-5634-1

6. Degradation of groundwater quality in coastal aquifer of Sabratah area, NW Libya

Author:
Alfarrah, Nawal; Berhane, Gebremedhin; Bakundukize, Charles; Walraevens, Kristine
Source:
Environmental earth sciences 2017 v.76 no.19 pp. 664
ISSN:
1866-6280
Subject:
drawdown,   etc   ; anhydrite; aquifers; chlorides; coasts; electrical conductivity; freshwater; groundwater; gypsum; intensive farming; irrigation; magnesium; nitrates; nitrogen fertilizers; pollution; potassium; risk; saline water; saltwater intrusion; sea level; sewage; shorelines; sodium; sulfates; urbanization; water quality; water table; wells; Libya;     Show all 29 Subjects
Abstract:
... Overextraction of groundwater is widely occurring along the coast where good quality groundwater is at risk, due to urbanization, tourist development and intensive agriculture. The Sabratah area at the northern central part of Jifarah Plain, Northwest Libya, is a typical area where the contamination of the aquifer in the form of saltwater intrusion, gypsum/anhydrite dissolution and high nitrate co ...
DOI:
10.1007/s12665-017-6999-5

7. Three-dimensional groundwater flow modeling approach for the groundwater management options for the Dakhla oasis, Western Desert, Egypt

Author:
Sefelnasr, Ahmed; Gossel, Wolfgang; Wycisk, Peter
Source:
Environmental earth sciences 2014 v.72 no.4 pp. 1227-1241
ISSN:
1866-6280
Subject:
drawdown,   etc   ; anthropogenic activities; aquifers; groundwater; groundwater flow; models; oases; sandstone; water table; wells; Egypt;     Show all 11 Subjects
Abstract:
... In Dakhla oasis, Western Desert of Egypt, groundwater is the only resource for all anthropogenic activities. During the last 50 years, the Nubian Sandstone Aquifer System (NSAS) has been undergoing serious stress through withdrawing its storage. Plans for expanding the agricultural areas in Dakhla oasis were given by the government. This article is an attempt to investigate the best management opt ...
DOI:
10.1007/s12665-013-3041-4

8. Mitigation of groundwater level deterioration of the Nubian Sandstone aquifer in Farafra Oasis, Western Desert, Egypt

Author:
Elsheikh, Abdelfattah Elsayed
Source:
Environmental earth sciences 2015 v.74 no.3 pp. 2351-2367
ISSN:
1866-6280
Subject:
drawdown,   etc   ; aquifers; drilling; flood irrigation; fossils; groundwater; groundwater extraction; groundwater flow; hydrodynamics; mathematical models; methodology; oases; population growth; sandstone; society; sprinkler irrigation; water table; wells; Egypt;     Show all 19 Subjects
Abstract:
... El Farafra Oasis is included in the New Valley Project which started in the 1960s. This project is based exclusively on groundwater of the well-known Nubian Sandstone aquifer (NSA). The hydraulic head drawdown problem in Farafra Oasis constitutes a big problem because it threatens the availability of the only water source in the Oasis. Hydrogeologically, Farafra Oasis belongs to the huge, artesian ...
DOI:
10.1007/s12665-015-4236-7

9. Simulation of horizontal well performance using Visual MODFLOW

Author:
Ismail, Wan Mohd Zamri W.; Yusoff, Ismail; Rahim, Bahaa-eldin E. A.
Source:
Environmental earth sciences 2013 v.68 no.4 pp. 1119-1126
ISSN:
1866-6280
Subject:
drawdown,   etc   ; aquifers; collectors; drainage; groundwater; groundwater flow; hydrologic models; wells; Malaysia;     Show all 9 Subjects
Abstract:
... A proposed horizontal well or radial collector well installation in shallow aquifers to enhance water withdrawal rates in Pintu Geng well field in Kelantan, Malaysia was simulated using the Drainage Package of MODFLOW groundwater model. The modelling exercise aimed at identifying an optimum pumping rate that would safely achieve the desired drawdown of less than 2 m in an area of 300 m radius surr ...
DOI:
10.1007/s12665-012-1813-x

10. Evaluation of groundwater withdrawal from a mountain watershed, Colorado, USA

Author:
Aigler, Brent V.; Ge, Shemin
Source:
Environmental earth sciences 2013 v.69 no.6 pp. 1901-1913
ISSN:
1866-6280
Subject:
drawdown,   etc   ; aquifers; base flow; drainage systems; evapotranspiration; groundwater; groundwater extraction; hydraulic conductivity; laboratory techniques; mathematical models; rivers; watersheds; wells; Colorado;     Show all 14 Subjects
Abstract:
... The purpose of this study is to evaluate the groundwater-withdrawal potential of the Fraser River watershed, a mountainous drainage system in north-central Colorado. Laboratory tests, field investigations, and numerical modeling are conducted to present a quantitative understanding of the watershed’s groundwater-flow system. Aquifer hydraulic conductivity values obtained from aquifer tests range f ...
DOI:
10.1007/s12665-012-2022-3