Modelling of dripwater hydrology and hydrogeochemistry in a weakly karstified aquifer (Bath, UK): Implications for climate change studies

Fairchild, Ian J.; Tuckwell, George; Baker, Andy; Tooth, Anna F.

doi:10.1016/j.jhydrol.2005.08.002

Cited by 106 publications

(62 citation statements)

References 38 publications

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“…If an enormous infiltration event occurs, a threshold is crossed and water from another flow path is added to drip location ER-G1. This process is similar to those modeled for other caves in Fairchild et al (2006). This additional water originates from fissure flow with water having less contact with the carbonate matrix; hence, less C can be exchanged.…”

Section: Implications For Karst Aquifer Behavior On Drip Location Er-g1supporting

confidence: 78%

The Influences of Hydrology on the Radiogenic and Stable Carbon Isotope Composition of Cave Drip Water, Grotta di Ernesto (Italy)

et al. 2010

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ABSTRACT. 14 C and  13 C values of C-containing species in cave drip waters are mainly controlled by the C isotope composition of karst rock and soil air, as well as by soil carbon dynamics, in particular the amount of soil CO 2 in the unsaturated soil zone and the process of calcite dissolution. Here, we investigate soil carbon dynamics by analyzing the 14 C activity and  13 C values of C dissolved in cave drip water. Monthly over a 2-yr period, we collected drip water from 2 drip sites, one fast and one relatively slow, within the shallow Grotta di Ernesto Cave (NE Italy). The 14 C data reveal a pronounced annual cycle. In contrast, the  13 C values do not show an annual pattern and only small interannual variability compared to the  13 C values of soil waters. The annual 14 C drip-water cycle is a function of drip-rate variability, soil moisture, and ultimately hydrology.

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Section: Implications For Karst Aquifer Behavior On Drip Location Er-g1supporting

confidence: 78%

The Influences of Hydrology on the Radiogenic and Stable Carbon Isotope Composition of Cave Drip Water, Grotta di Ernesto (Italy)

et al. 2010

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“…The precipitation-to-drip transition time is not directly the time of water flow from the surface to a specific drip site; more precisely, the transition time is the travel time of a wave of migrating hydraulic pressure. The response of JN6 site to precipitation is in good agreement with the karstic aquifer discharge model proposed by Fairchild et al (2006). In this model, the stable low discharge rate is caused by the steady seeping of meteoric water through the soil and low-diameter fissures.…”

Section: Discussionsupporting

confidence: 84%

Drip rate and tritium activity in the Niedźwiedzia Cave system (Poland) as a tool for tracking water circulation paths and time in karstic systems

et al. 2015

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Abstract:The Niedźwiedzia Cave system is composed of 3 horizontal levels of passages and chambers. Changes in the drip rate of water from the upper level stalactites correlate well with changes in precipitation intensity. The transition time between the surface and the upper level of the cave was estimated to 14 days. Drip sites in the middle and lower levels of the cave exhibited two types of recharge: some did not correlate with precipitation intensity, whereas others correlated well with rain events. The transition times for the latter sites were estimated to be greater than 6 months. This estimate was confirmed by the calculation of the transition time based on tritium activity. The oldest water in the entire karst system was observed in a karst spring. The mean tritium age for this water during winter was estimated to be 3.9 ± 0.6 yr. More precise calculations of the tritium age of karst water require longer precipitation activity datasets.

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“…plumbing reorganization), and in principle each speleothem may have different sensitivities and thresholds to change (Smart and Friederich, 1987;Baker and Brunsdon, 2003;Fairchild et al, 2006b). For this reason, there is a need to at least duplicate samples wherever possible, and to establish records involving multiple parameters to check for internal consistency, and to account for unique hydrological factors for a given drip from changes affecting whole caves or different caves in a region.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the climate signal contained within δ18O and growth rate parameters in two Ethiopian stalagmites

Baker

Asrat

Fairchild

et al. 2007

Geochimica et Cosmochimica Acta

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Modelling of dripwater hydrology and hydrogeochemistry in a weakly karstified aquifer (Bath, UK): Implications for climate change studies

Cited by 106 publications

References 38 publications

The Influences of Hydrology on the Radiogenic and Stable Carbon Isotope Composition of Cave Drip Water, Grotta di Ernesto (Italy)

The Influences of Hydrology on the Radiogenic and Stable Carbon Isotope Composition of Cave Drip Water, Grotta di Ernesto (Italy)

Drip rate and tritium activity in the Niedźwiedzia Cave system (Poland) as a tool for tracking water circulation paths and time in karstic systems

Analysis of the climate signal contained within δ18O and growth rate parameters in two Ethiopian stalagmites

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