The development of the cone of depression around a pumped well in an infinite strip aquifer subject to uniform recharge

Brown, Russell H.

doi:10.3133/ofr5914

Cited by 6 publications

(8 citation statements)

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“…0043-1397/92/92WR-01 ! 70505.00 Brown [1963] calculated the catchment of a well in the center of an aquifer receiving uniform recharge and bounded by two streams at the same elevation. He did this by calculating water table elevations everywhere and then drawing in the catchment.…”

Section: Previous Workmentioning

confidence: 99%

Well catchments and time‐of‐travel zones in aquifers with recharge

Lerner¹

1992

Water Resources Research

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The classical analytical method used to map catchments and time‐of‐travel zones of pumping wells was originally derived for another purpose and takes no account of recharge (Bear and Jacobs, 1965). Generalized catchment shapes are presented here for aquifers with recharge. They can be scaled to field situations through two or three nondimensional parameters. A semianalytical path line tracing model was used to generate the shapes. It contains new expressions for pore water velocities in two infinite strip, recharged aquifers, one with two fixed head boundaries, the other with one impermeable boundary. The resulting catchments differ significantly in both shape and size from catchments estimated by the no‐recharge method. Generalized results are also presented for time‐of‐travel zones which are noticeably smaller than those calculated by the no‐recharge method. Comparison with an equivalent recently released model from the U.S. Environmental Protection Agency shows the latter to give poor estimates of catchments and time‐of‐travel zones.

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Section: Previous Workmentioning

confidence: 99%

Well catchments and time‐of‐travel zones in aquifers with recharge

Lerner¹

1992

Water Resources Research

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“…Prve metode določitve razpoložljivih količin podzemnih voda, ki so poenostavljeno enačile napajanje z razpoložljivimi količinami, so se pojavile v štiridesetih letih prejšnjega stoletja. Kljub številnim, tudi zgodnjim kritikam (Theis, 1940;Brown, 1963;BredehoefT et al, 1982), je ostal ta koncept določanja razpoložljivih količin podzemnih voda dolgo in pogosto v uporabi.…”

Section: Uvodunclassified

The assessment of the required groundwater quantity for the conservation of ecosystems and the achievement of a good ecological status of surface waters

Janža¹,

Šram²,

Mezga³

et al. 2016

Geologija

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IzvlečekDoločitev razpoložljivih količin podzemnih voda je osnovnega pomena za njihovo trajnostno rabo. Sodobni pristopi ocene razpoložljivosti podzemnih voda celovito obravnavajo posledice odvzemov podzemne vode, vključno z vplivi na ekosisteme in ekološko stanje površinskih voda. Vodno telo podzemne vode je v dobrem količinskem stanju, če odvzemi podzemne vode ne povzročajo pomembnih poškodb ekosistemov, odvisnih od podzemne vode, in ne slabšajo ekološkega stanja površinskih voda. V članku predstavljeno metodologijo smo razvili kot sestavni del ocene količinskega stanja vodnih teles podzemne vode v Sloveniji in je prilagojena lastnostim obravnavanih ekosistemov ter hidrološkim in hidrogeološkim značilnostim slovenskega ozemlja. Uporabili smo dva različna pristopa ocene potrebnih količin podzemnih voda za ohranjanje gozdnih habitatov na aluvialnih vodonosnikih in habitatov dvoživk ter mehkužcev na kraških območjih. Oceno smo izvedli na ravni vodnih teles podzemne vode in letnih povprečij časovnih spremenljivk vodne bilance, izračunanih z regionalnim vodnobilančnim modelom GROWA-SI. Na območjih vodnih teles podzemne vode, kjer so prisotni obravnavani ekosistemi, znaša ta količina od 0,1 % do 12,4 % obnovljivih količin podzemnih voda. Ocenjeni delež letnih obnovljivih količin podzemnih voda, potrebnih za ohranjanje ekološkega stanja površinskih voda je za celotno območje Slovenije 23,2 %. Največji delež je na območju severovzhodne Slovenije, kjer dosega 30 %, najmanjši pa v vzhodnih Alpah, Karavankah in Kamniško-Savinjskih Alpah s 16,6 % povprečnih letnih obnovljivih količin. AbstractAssessment of the available quantity of groundwater is of essential importance for its sustainable use. Modern approaches for estimation of groundwater availability take into account all potential impacts of abstractions, including impacts on groundwater dependent ecosystems and impacts on surface waters ecological status. Groundwater body is in good quantitative status if groundwater abstractions do not cause significant damages to groundwater dependent ecosystems and significant diminution in the ecological status of surface water bodies. The methodology presented in this paper was developed as an integral part of the assessment of the quantitative status of groundwater bodies in Slovenia and is tailored to the characteristics of the groundwater dependent ecosystems as well as hydrological and hydrogeological conditions in the Slovenian territory. Two different approaches were implemented; for forest habitats on alluvial aquifers, and habitats of amphibians and molluscs in karst areas. Estimates of the required quantity of groundwater for groundwater dependent ecosystems conservation were performed at the level of groundwater bodies and annual averages of temporal variables of the water balance, calculated with the regional water balance model GROWA-SI. In the areas of groundwater bodies with groundwater dependent ecosystems estimated quantity present 0.1 % -12.4 % of the groundwater recharge. The estimated share of annual renewabl...

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“…Under this line of reasoning, many water managers have concluded that all water entering the system as natural recharge is available for extraction without long-term deleterious effects. Brown [45] addressed the problem with this argument through an example of a well whose cone of depression eventually expands to intersect a stream in which he demonstrated that, Figure 7 illustrates the evolution of a groundwater system which receives natural recharge (through precipitation) at a fixed and limited rate, R 0 , and discharges to a stream as baseflow at a rate of D 0. In Figure 7a, the system is in equilibrium prior to any significant groundwater development.…”

Section: "The Decrease In Discharge Plus the Increase In Recharge Is mentioning

confidence: 99%

Application of Hydrologic Tools and Monitoring to Support Managed Aquifer Recharge Decision Making in the Upper San Pedro River, Arizona, USA

Lacher¹,

Turner

Gungle

et al. 2014

Water

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Abstract:The San Pedro River originates in Sonora, Mexico, and flows north through Arizona, USA, to its confluence with the Gila River. The 92-km Upper San Pedro River is characterized by interrupted perennial flow, and serves as a vital wildlife corridor through this semiarid to arid region. Over the past century, groundwater pumping in this bi-national basin has depleted baseflows in the river. In 2007, the United States Geological Survey published the most recent groundwater model of the basin. This model served as the basis for predictive simulations, including maps of stream flow capture due to pumping and of stream flow restoration due to managed aquifer recharge. Simulation results show that ramping up near-stream recharge, as needed, to compensate for downward pumping-related stress on the water table, could sustain baseflows in the Upper San Pedro River at or above 2003 levels until the year 2100 with less than 4.7 million cubic meters per year (MCM/yr). Wet-dry mapping of the river over a period of 15 years developed a body of empirical evidence which, when combined with the simulation tools, provided powerful technical support to decision makers struggling to manage aquifer recharge to support baseflows in the river while also accommodating the economic needs of the basin.

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The development of the cone of depression around a pumped well in an infinite strip aquifer subject to uniform recharge

Cited by 6 publications

References 0 publications

Well catchments and time‐of‐travel zones in aquifers with recharge

Well catchments and time‐of‐travel zones in aquifers with recharge

The assessment of the required groundwater quantity for the conservation of ecosystems and the achievement of a good ecological status of surface waters

Application of Hydrologic Tools and Monitoring to Support Managed Aquifer Recharge Decision Making in the Upper San Pedro River, Arizona, USA

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