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    Rights statement: Copyright 2011 by the American Geophysical Union.

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Ebullition events monitored from northern peatlands using electrical imaging

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Ebullition events monitored from northern peatlands using electrical imaging. / Kettridge, Nicholas; Binley, Andrew; Green, Sophie M. et al.
In: Journal of Geophysical Research: Biogeosciences, Vol. 116, No. G4, G04004, 12.2011.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Kettridge, N, Binley, A, Green, SM & Baird, AJ 2011, 'Ebullition events monitored from northern peatlands using electrical imaging', Journal of Geophysical Research: Biogeosciences, vol. 116, no. G4, G04004. https://doi.org/10.1029/2010JG001561

APA

Kettridge, N., Binley, A., Green, S. M., & Baird, A. J. (2011). Ebullition events monitored from northern peatlands using electrical imaging. Journal of Geophysical Research: Biogeosciences, 116(G4), Article G04004. https://doi.org/10.1029/2010JG001561

Vancouver

Kettridge N, Binley A, Green SM, Baird AJ. Ebullition events monitored from northern peatlands using electrical imaging. Journal of Geophysical Research: Biogeosciences. 2011 Dec;116(G4):G04004. doi: 10.1029/2010JG001561

Author

Kettridge, Nicholas ; Binley, Andrew ; Green, Sophie M. et al. / Ebullition events monitored from northern peatlands using electrical imaging. In: Journal of Geophysical Research: Biogeosciences. 2011 ; Vol. 116, No. G4.

Bibtex

@article{f62d9d656cfd40d89124cd2314300b5f,
title = "Ebullition events monitored from northern peatlands using electrical imaging",
abstract = "Within northern peatlands, ebullition is potentially an important mechanism for the transport of methane (CH(4)) to the atmosphere. We applied electrical imaging to characterize the buildup and ebullition of biogenic gas bubbles in a spatially explicit manner. Ebullition events were monitored from a range of different peat types, with and without a vascular plant cover, under different meteorological conditions. Weekly changes in bulk electrical conductivity (sigma) were analyzed, during which variations in pore water conductivity had only a small effect on sigma. Bulk ebullition losses from the peat cores were independently measured using Mariotte regulators. The largest ebullition events were found to be spatially diffuse: the gas was released from a large volume of peat. We used a measure of the roughness of the electrical images to characterize the magnitude of gas bubble movement within each peat core. Our results show that small variations in air temperatures of 3 degrees C and variations in peat type between different microhabitats have a statistically significant influence on gas bubble dynamics.",
keywords = "CH4, WATER-CONTENT, PEAT, BIOGENIC GAS-BUBBLES, METHANE EMISSIONS, VASCULAR PLANTS, Ebullition, DYNAMICS, WETLANDS, CARBON TURNOVER, Geophysics, Northern peatlands, resistivity",
author = "Nicholas Kettridge and Andrew Binley and Green, {Sophie M.} and Baird, {Andy J.}",
note = "Copyright 2011 by the American Geophysical Union.",
year = "2011",
month = dec,
doi = "10.1029/2010JG001561",
language = "English",
volume = "116",
journal = "Journal of Geophysical Research: Biogeosciences",
issn = "2169-8961",
publisher = "AMER GEOPHYSICAL UNION",
number = "G4",

}

RIS

TY - JOUR

T1 - Ebullition events monitored from northern peatlands using electrical imaging

AU - Kettridge, Nicholas

AU - Binley, Andrew

AU - Green, Sophie M.

AU - Baird, Andy J.

N1 - Copyright 2011 by the American Geophysical Union.

PY - 2011/12

Y1 - 2011/12

N2 - Within northern peatlands, ebullition is potentially an important mechanism for the transport of methane (CH(4)) to the atmosphere. We applied electrical imaging to characterize the buildup and ebullition of biogenic gas bubbles in a spatially explicit manner. Ebullition events were monitored from a range of different peat types, with and without a vascular plant cover, under different meteorological conditions. Weekly changes in bulk electrical conductivity (sigma) were analyzed, during which variations in pore water conductivity had only a small effect on sigma. Bulk ebullition losses from the peat cores were independently measured using Mariotte regulators. The largest ebullition events were found to be spatially diffuse: the gas was released from a large volume of peat. We used a measure of the roughness of the electrical images to characterize the magnitude of gas bubble movement within each peat core. Our results show that small variations in air temperatures of 3 degrees C and variations in peat type between different microhabitats have a statistically significant influence on gas bubble dynamics.

AB - Within northern peatlands, ebullition is potentially an important mechanism for the transport of methane (CH(4)) to the atmosphere. We applied electrical imaging to characterize the buildup and ebullition of biogenic gas bubbles in a spatially explicit manner. Ebullition events were monitored from a range of different peat types, with and without a vascular plant cover, under different meteorological conditions. Weekly changes in bulk electrical conductivity (sigma) were analyzed, during which variations in pore water conductivity had only a small effect on sigma. Bulk ebullition losses from the peat cores were independently measured using Mariotte regulators. The largest ebullition events were found to be spatially diffuse: the gas was released from a large volume of peat. We used a measure of the roughness of the electrical images to characterize the magnitude of gas bubble movement within each peat core. Our results show that small variations in air temperatures of 3 degrees C and variations in peat type between different microhabitats have a statistically significant influence on gas bubble dynamics.

KW - CH4

KW - WATER-CONTENT

KW - PEAT

KW - BIOGENIC GAS-BUBBLES

KW - METHANE EMISSIONS

KW - VASCULAR PLANTS

KW - Ebullition

KW - DYNAMICS

KW - WETLANDS

KW - CARBON TURNOVER

KW - Geophysics

KW - Northern peatlands

KW - resistivity

U2 - 10.1029/2010JG001561

DO - 10.1029/2010JG001561

M3 - Journal article

VL - 116

JO - Journal of Geophysical Research: Biogeosciences

JF - Journal of Geophysical Research: Biogeosciences

SN - 2169-8961

IS - G4

M1 - G04004

ER -