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Isotope studies of pipeflow at Plynlimon, Wales, UK.

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Isotope studies of pipeflow at Plynlimon, Wales, UK. / Sklash, M. G.; Beven, K. J.; Gilman, K. et al.
In: Hydrological Processes, Vol. 10, No. 7, 07.1996, p. 921-944.

Research output: Contribution to Journal/Magazine › Journal article

Harvard

Sklash, MG, Beven, KJ, Gilman, K & Darling, WG 1996, 'Isotope studies of pipeflow at Plynlimon, Wales, UK.', Hydrological Processes, vol. 10, no. 7, pp. 921-944. https://doi.org/10.1002/(SICI)1099-1085(199607)10:7<921::AID-HYP347>3.0.CO;2-B

APA

Sklash, M. G., Beven, K. J., Gilman, K., & Darling, W. G. (1996). Isotope studies of pipeflow at Plynlimon, Wales, UK. Hydrological Processes, 10(7), 921-944. https://doi.org/10.1002/(SICI)1099-1085(199607)10:7<921::AID-HYP347>3.0.CO;2-B

Vancouver

Sklash MG, Beven KJ, Gilman K, Darling WG. Isotope studies of pipeflow at Plynlimon, Wales, UK. Hydrological Processes. 1996 Jul;10(7):921-944. doi: 10.1002/(SICI)1099-1085(199607)10:7<921::AID-HYP347>3.0.CO;2-B

Author

Sklash, M. G. ; Beven, K. J. ; Gilman, K. et al. / Isotope studies of pipeflow at Plynlimon, Wales, UK. In: Hydrological Processes. 1996 ; Vol. 10, No. 7. pp. 921-944.

Bibtex

@article{38fc3091556a4e2db170a1b8c5619824,
title = "Isotope studies of pipeflow at Plynlimon, Wales, UK.",
abstract = "Residence times and flow paths of pipe and stream flow were studied during low flow in the Nant Gerig and Gwy experimental catchments at Plynlimon in mid-Wales, UK, using a two-month time series of natural deuterium and electrical conductivity data from perennial and ephemeral pipe flow, stream flow, groundwater and rainfall. Low flow in both the perennial pipe and the stream was maintained by old groundwater discharge. This groundwater was at least 40 days old. Flow in the ephemeral pipe was dominated by old groundwater and was only slightly affected by direct inputs of new water. Although direct rainfall inputs contributed minimally to runoff in the perennial pipe and the stream, rainfall influenced the isotopic and chemical character of the groundwater. Rainfall also affected the water-table elevation, which determined the flashiness of the perennial pipe flow and whether the ephemeral pipe flowed. The isotope and electrical conductivity data suggest that storm runoff in both the main pipe and the stream is overwhelmingly old water. A sensitivity analysis suggests that the old water is supplied both from near-stream groundwater and upslope groundwater delivered by the ephemeral pipes.",
keywords = "Plynlimon • isotopes • hydrograph separation • pipeflows • deuterium • runoff generation",
author = "Sklash, {M. G.} and Beven, {K. J.} and K. Gilman and Darling, {W. G.}",
year = "1996",
month = jul,
doi = "10.1002/(SICI)1099-1085(199607)10:7<921::AID-HYP347>3.0.CO;2-B",
language = "English",
volume = "10",
pages = "921--944",
journal = "Hydrological Processes",
issn = "1099-1085",
publisher = "John Wiley and Sons Ltd",
number = "7",

}

RIS

TY - JOUR

T1 - Isotope studies of pipeflow at Plynlimon, Wales, UK.

AU - Sklash, M. G.

AU - Beven, K. J.

AU - Gilman, K.

AU - Darling, W. G.

PY - 1996/7

Y1 - 1996/7

N2 - Residence times and flow paths of pipe and stream flow were studied during low flow in the Nant Gerig and Gwy experimental catchments at Plynlimon in mid-Wales, UK, using a two-month time series of natural deuterium and electrical conductivity data from perennial and ephemeral pipe flow, stream flow, groundwater and rainfall. Low flow in both the perennial pipe and the stream was maintained by old groundwater discharge. This groundwater was at least 40 days old. Flow in the ephemeral pipe was dominated by old groundwater and was only slightly affected by direct inputs of new water. Although direct rainfall inputs contributed minimally to runoff in the perennial pipe and the stream, rainfall influenced the isotopic and chemical character of the groundwater. Rainfall also affected the water-table elevation, which determined the flashiness of the perennial pipe flow and whether the ephemeral pipe flowed. The isotope and electrical conductivity data suggest that storm runoff in both the main pipe and the stream is overwhelmingly old water. A sensitivity analysis suggests that the old water is supplied both from near-stream groundwater and upslope groundwater delivered by the ephemeral pipes.

AB - Residence times and flow paths of pipe and stream flow were studied during low flow in the Nant Gerig and Gwy experimental catchments at Plynlimon in mid-Wales, UK, using a two-month time series of natural deuterium and electrical conductivity data from perennial and ephemeral pipe flow, stream flow, groundwater and rainfall. Low flow in both the perennial pipe and the stream was maintained by old groundwater discharge. This groundwater was at least 40 days old. Flow in the ephemeral pipe was dominated by old groundwater and was only slightly affected by direct inputs of new water. Although direct rainfall inputs contributed minimally to runoff in the perennial pipe and the stream, rainfall influenced the isotopic and chemical character of the groundwater. Rainfall also affected the water-table elevation, which determined the flashiness of the perennial pipe flow and whether the ephemeral pipe flowed. The isotope and electrical conductivity data suggest that storm runoff in both the main pipe and the stream is overwhelmingly old water. A sensitivity analysis suggests that the old water is supplied both from near-stream groundwater and upslope groundwater delivered by the ephemeral pipes.

KW - Plynlimon • isotopes • hydrograph separation • pipeflows • deuterium • runoff generation

U2 - 10.1002/(SICI)1099-1085(199607)10:7<921::AID-HYP347>3.0.CO;2-B

DO - 10.1002/(SICI)1099-1085(199607)10:7<921::AID-HYP347>3.0.CO;2-B

M3 - Journal article

VL - 10

SP - 921

EP - 944

JO - Hydrological Processes

JF - Hydrological Processes

SN - 1099-1085

IS - 7

ER -