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Do peatland microforms move through time? Examining the developmental history of a patterned peatland using ground-penetrating radar

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Do peatland microforms move through time? Examining the developmental history of a patterned peatland using ground-penetrating radar. / Kettridge, Nicholas; Binley, Andrew; Comas, Xavier et al.
In: Journal of Geophysical Research: Biogeosciences, Vol. 117, No. G3, ARTN G03030, 09.2012.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Kettridge, N, Binley, A, Comas, X, Cassidy, NJ, Baird, AJ, Harris, A, van der Kruk, J, Strack, M, Milner, AM & Waddington, JM 2012, 'Do peatland microforms move through time? Examining the developmental history of a patterned peatland using ground-penetrating radar', Journal of Geophysical Research: Biogeosciences, vol. 117, no. G3, ARTN G03030. https://doi.org/10.1029/2011JG001876

APA

Kettridge, N., Binley, A., Comas, X., Cassidy, N. J., Baird, A. J., Harris, A., van der Kruk, J., Strack, M., Milner, A. M., & Waddington, J. M. (2012). Do peatland microforms move through time? Examining the developmental history of a patterned peatland using ground-penetrating radar. Journal of Geophysical Research: Biogeosciences, 117(G3), Article ARTN G03030. https://doi.org/10.1029/2011JG001876

Vancouver

Kettridge N, Binley A, Comas X, Cassidy NJ, Baird AJ, Harris A et al. Do peatland microforms move through time? Examining the developmental history of a patterned peatland using ground-penetrating radar. Journal of Geophysical Research: Biogeosciences. 2012 Sept;117(G3):ARTN G03030. Epub 2012 Sept 18. doi: 10.1029/2011JG001876

Author

Kettridge, Nicholas ; Binley, Andrew ; Comas, Xavier et al. / Do peatland microforms move through time? Examining the developmental history of a patterned peatland using ground-penetrating radar. In: Journal of Geophysical Research: Biogeosciences. 2012 ; Vol. 117, No. G3.

Bibtex

@article{8458c188e3ca4f159303c414339052ba,
title = "Do peatland microforms move through time? Examining the developmental history of a patterned peatland using ground-penetrating radar",
abstract = "Using ground-penetrating radar (GPR) to map subsurface patterns in peat physical properties, we investigated the developmental history of meso-scale surface patterning of microforms within a raised bog. Common offset GPR measurements were obtained along a 45-m transect, at frequencies ranging from 100 to 900 MHz. We found that low-frequency (central frequency <240 MHz) GPR could not adequately represent the subsurface structures of the peatland because individual peat layers were too thin. However, more detailed high-frequency measurements (central frequency >= 240 MHz) showed a striking pattern of subsurface reflections that dip consistently in a northerly direction. The angle of these dipping reflectors is calculated using a semblance algorithm and was shown to average 3.9 degrees between a depth of 1.0 and 2.5 m. These dipping reflectors may indicate downslope migration of surface microforms during the development of the peatland. Based on the estimated angle and the rate of peat accumulation, the average rate of downslope propagation of these surface microforms is calculated at 9.8 mm per year. Further survey work is required to establish whether the downslope migration is common across the peatland.",
keywords = "CANADA, STRATIGRAPHY, BLANKET MIRE, MIRE DEVELOPMENT, ATTRIBUTES, POOL FORMATION, PHYSICAL-PROPERTIES, CLIMATE-CHANGE, RAISED BOG, MECHANISMS",
author = "Nicholas Kettridge and Andrew Binley and Xavier Comas and Cassidy, {Nigel J.} and Baird, {Andy J.} and Angela Harris and {van der Kruk}, Jan and Maria Strack and Milner, {Alice M.} and Waddington, {James M.}",
year = "2012",
month = sep,
doi = "10.1029/2011JG001876",
language = "English",
volume = "117",
journal = "Journal of Geophysical Research: Biogeosciences",
issn = "2169-8961",
publisher = "AMER GEOPHYSICAL UNION",
number = "G3",

}

RIS

TY - JOUR

T1 - Do peatland microforms move through time? Examining the developmental history of a patterned peatland using ground-penetrating radar

AU - Kettridge, Nicholas

AU - Binley, Andrew

AU - Comas, Xavier

AU - Cassidy, Nigel J.

AU - Baird, Andy J.

AU - Harris, Angela

AU - van der Kruk, Jan

AU - Strack, Maria

AU - Milner, Alice M.

AU - Waddington, James M.

PY - 2012/9

Y1 - 2012/9

N2 - Using ground-penetrating radar (GPR) to map subsurface patterns in peat physical properties, we investigated the developmental history of meso-scale surface patterning of microforms within a raised bog. Common offset GPR measurements were obtained along a 45-m transect, at frequencies ranging from 100 to 900 MHz. We found that low-frequency (central frequency <240 MHz) GPR could not adequately represent the subsurface structures of the peatland because individual peat layers were too thin. However, more detailed high-frequency measurements (central frequency >= 240 MHz) showed a striking pattern of subsurface reflections that dip consistently in a northerly direction. The angle of these dipping reflectors is calculated using a semblance algorithm and was shown to average 3.9 degrees between a depth of 1.0 and 2.5 m. These dipping reflectors may indicate downslope migration of surface microforms during the development of the peatland. Based on the estimated angle and the rate of peat accumulation, the average rate of downslope propagation of these surface microforms is calculated at 9.8 mm per year. Further survey work is required to establish whether the downslope migration is common across the peatland.

AB - Using ground-penetrating radar (GPR) to map subsurface patterns in peat physical properties, we investigated the developmental history of meso-scale surface patterning of microforms within a raised bog. Common offset GPR measurements were obtained along a 45-m transect, at frequencies ranging from 100 to 900 MHz. We found that low-frequency (central frequency <240 MHz) GPR could not adequately represent the subsurface structures of the peatland because individual peat layers were too thin. However, more detailed high-frequency measurements (central frequency >= 240 MHz) showed a striking pattern of subsurface reflections that dip consistently in a northerly direction. The angle of these dipping reflectors is calculated using a semblance algorithm and was shown to average 3.9 degrees between a depth of 1.0 and 2.5 m. These dipping reflectors may indicate downslope migration of surface microforms during the development of the peatland. Based on the estimated angle and the rate of peat accumulation, the average rate of downslope propagation of these surface microforms is calculated at 9.8 mm per year. Further survey work is required to establish whether the downslope migration is common across the peatland.

KW - CANADA

KW - STRATIGRAPHY

KW - BLANKET MIRE

KW - MIRE DEVELOPMENT

KW - ATTRIBUTES

KW - POOL FORMATION

KW - PHYSICAL-PROPERTIES

KW - CLIMATE-CHANGE

KW - RAISED BOG

KW - MECHANISMS

UR - http://www.scopus.com/inward/record.url?scp=84866711863&partnerID=8YFLogxK

U2 - 10.1029/2011JG001876

DO - 10.1029/2011JG001876

M3 - Journal article

VL - 117

JO - Journal of Geophysical Research: Biogeosciences

JF - Journal of Geophysical Research: Biogeosciences

SN - 2169-8961

IS - G3

M1 - ARTN G03030

ER -