Matches in SemOpenAlex for { <https://semopenalex.org/work/W2964473313> ?p ?o ?g. }
Showing items 1 to 73 of
73
with 100 items per page.
- W2964473313 abstract "With increasing population and urbanization in the deltas across global mega-river basins, groundwater stress is increasing due to changing ocean-land disposition, hydroclimatic extremes, over-exploitation and natural/anthropogenic contamination. Such change in coastal hydrodynamic process makes an impact in to the resilience of groundwater-sourced drinking water vulnerability. The groundwater responses studied in this work in the ecologically-vulnerable, UNESCO World Heritage site of the Sunderban delta-front aquifers at the river Ganges-Brahmaputra mega delta, demonstrate a unique example of such intricacies and complexities. High-resolution, temporal, depth-dependent hydraulic connectivity and hydrochemistry was studied for this complex, climate-driven, tidal-induced hydrological interactions between surface water (seawater of Bay of Bengal [BoB] and Ganges river water) with shallow and deep groundwater by stable isotopic (δ18O and δD) signatures and piezometry. A wide range of salinity content and δ18O composition of groundwater samples for 14-25 (salinity: 3 to 45 ppT, δ18O: -3.63 to -1.15‰) and 30-50 meter below ground level (mbgl)(salinity: 5 to 25 ppT, δ18O: -3.41 to -1.34 ‰) was recorded, while, comparatively, a narrow range of temporal variability was observed for the depths of 115 (salinity: 1 to 4 ppT, δ18O: -5.04 to -2.15 ‰) and 333mbgl (salinity: 1 to 3 ppT, δ18O: -4.43 to -2.81 ‰). Study results revealed that vertical transport of solute has been induced by coastal hydrodynamics. However, human interferences, in terms of groundwater abstraction and landuse-land cover change (e.g. brackish aquaculture) do have substantial impact on evolving groundwater response, thereby impacting resilience to drinking water option in this densely populated area. Fluctuations of groundwater level in relation with δ18Ogw composition showed shallow depths (14 to 50 mbgl) are hydraulically connected by local flow and conducive of chemical exchanges. The deeper groundwater (115 to ∼330 mbgl depths) flow suggests regional-scale hydraulic connections along flow paths. In-spite of sub-meter scale seasonal groundwater level changes, salinity variability is observed between 1 to 4 ppT at >100 m bgl depths, suggest mixing between chemically-distinct water reservoirs, conserving hydraulic mass-balance. However, such observation suggests severe implications for groundwater vulnerability, which might aggravate with future intensification of irrigational abstraction, as well as with changing hydroclimatological regime and extreme events. Thus, future planning and management strategies of sustainable supply of safe water in such ecologically-sensitive groundwater systems need to incorporate such dynamic chemical evolution." @default.
- W2964473313 created "2019-08-13" @default.
- W2964473313 creator A5053694783 @default.
- W2964473313 creator A5085063957 @default.
- W2964473313 date "2019-01-01" @default.
- W2964473313 modified "2023-09-26" @default.
- W2964473313 title "Depth-dependent groundwater response to coastal hydrodynamics in tropical mega-delta front: impact of hydraulic connectivity on drinking water vulnerability" @default.
- W2964473313 hasPublicationYear "2019" @default.
- W2964473313 type Work @default.
- W2964473313 sameAs 2964473313 @default.
- W2964473313 citedByCount "0" @default.
- W2964473313 crossrefType "journal-article" @default.
- W2964473313 hasAuthorship W2964473313A5053694783 @default.
- W2964473313 hasAuthorship W2964473313A5085063957 @default.
- W2964473313 hasConcept C121332964 @default.
- W2964473313 hasConcept C127313418 @default.
- W2964473313 hasConcept C127413603 @default.
- W2964473313 hasConcept C135114317 @default.
- W2964473313 hasConcept C146978453 @default.
- W2964473313 hasConcept C187320778 @default.
- W2964473313 hasConcept C22117777 @default.
- W2964473313 hasConcept C39432304 @default.
- W2964473313 hasConcept C5072461 @default.
- W2964473313 hasConcept C62520636 @default.
- W2964473313 hasConcept C69384203 @default.
- W2964473313 hasConcept C75622301 @default.
- W2964473313 hasConcept C76177295 @default.
- W2964473313 hasConcept C76886044 @default.
- W2964473313 hasConcept C8625798 @default.
- W2964473313 hasConcept C87717796 @default.
- W2964473313 hasConceptScore W2964473313C121332964 @default.
- W2964473313 hasConceptScore W2964473313C127313418 @default.
- W2964473313 hasConceptScore W2964473313C127413603 @default.
- W2964473313 hasConceptScore W2964473313C135114317 @default.
- W2964473313 hasConceptScore W2964473313C146978453 @default.
- W2964473313 hasConceptScore W2964473313C187320778 @default.
- W2964473313 hasConceptScore W2964473313C22117777 @default.
- W2964473313 hasConceptScore W2964473313C39432304 @default.
- W2964473313 hasConceptScore W2964473313C5072461 @default.
- W2964473313 hasConceptScore W2964473313C62520636 @default.
- W2964473313 hasConceptScore W2964473313C69384203 @default.
- W2964473313 hasConceptScore W2964473313C75622301 @default.
- W2964473313 hasConceptScore W2964473313C76177295 @default.
- W2964473313 hasConceptScore W2964473313C76886044 @default.
- W2964473313 hasConceptScore W2964473313C8625798 @default.
- W2964473313 hasConceptScore W2964473313C87717796 @default.
- W2964473313 hasLocation W29644733131 @default.
- W2964473313 hasOpenAccess W2964473313 @default.
- W2964473313 hasPrimaryLocation W29644733131 @default.
- W2964473313 hasRelatedWork W1598240069 @default.
- W2964473313 hasRelatedWork W1614629533 @default.
- W2964473313 hasRelatedWork W1966658731 @default.
- W2964473313 hasRelatedWork W2022845661 @default.
- W2964473313 hasRelatedWork W2097408162 @default.
- W2964473313 hasRelatedWork W2188541630 @default.
- W2964473313 hasRelatedWork W2601394059 @default.
- W2964473313 hasRelatedWork W2767928743 @default.
- W2964473313 hasRelatedWork W2795577419 @default.
- W2964473313 hasRelatedWork W2807650433 @default.
- W2964473313 hasRelatedWork W2808848781 @default.
- W2964473313 hasRelatedWork W2946458728 @default.
- W2964473313 hasRelatedWork W2969244204 @default.
- W2964473313 hasRelatedWork W3114767107 @default.
- W2964473313 hasRelatedWork W3118864117 @default.
- W2964473313 hasRelatedWork W3134412265 @default.
- W2964473313 hasRelatedWork W3198150726 @default.
- W2964473313 hasRelatedWork W3207072395 @default.
- W2964473313 hasRelatedWork W78386332 @default.
- W2964473313 hasRelatedWork W793744775 @default.
- W2964473313 isParatext "false" @default.
- W2964473313 isRetracted "false" @default.
- W2964473313 magId "2964473313" @default.
- W2964473313 workType "article" @default.