Assessing aeolian beach-surface dynamics using a remote sensing approach

Irene Delgado-Fernandez, Robin Davidson-Arnott, Bernard O Bauer, Ian J Walker, Jeff Ollerhead, Hosahng Rhew

Research output: Contribution to journalArticle

12 Citations (Scopus)
2 Downloads (Pure)

Abstract

A remote sensing technique for assessing beach surface moisture was used to provide insight into beach-surface evolution during an aeolian event. An experiment was carried out on October 21, 2007 at Greenwich Dunes, Prince Edward Island National Park, Canada, during which cameras were mounted on a mast on the foredune crest at a height of about 14 m above the beach. Maps of beach surface moisture were created based on a calibrated relationship between surface brightness from the photographs and surface moisture content measured in situ at points spaced every 2.5 metres along a transect using a Delta-T moisture probe. A time sequence of maps of surface moisture content captured beach surface evolution through the transport event at a spatial and temporal resolution that would be difficult to achieve with other sampling techniques such as impedance probes. Erosion of the foreshore and berm crest resulted in an increase in surface moisture content in these areas as the wetter underlying sediments were exposed. Flow expansion downwind of the berm crest led to sand deposition and a consequent decrease in surface moisture content. Remote sensing systems such as the one presented here allow observations of the combined evolution of beach surface moisture, shoreline position, and fetch distances during short-term experiments and hence provide a comprehensive rendering of sediment erosion and transport processes.
Original languageEnglish
Pages (from-to)1651-1660
JournalEarth Surface Processes and Landforms
Volume37
Issue number15
DOIs
Publication statusPublished - Dec 2012

Fingerprint

beach
remote sensing
erosion
moisture content
moisture
event
experiment
berm
national park
Canada
probe
fetch
transport process
sediment
photograph
dune
shoreline
transect
sand

Cite this

Delgado-Fernandez, I., Davidson-Arnott, R., Bauer, B. O., Walker, I. J., Ollerhead, J., & Rhew, H. (2012). Assessing aeolian beach-surface dynamics using a remote sensing approach. Earth Surface Processes and Landforms, 37(15), 1651-1660. https://doi.org/10.1002/esp.3301
Delgado-Fernandez, Irene ; Davidson-Arnott, Robin ; Bauer, Bernard O ; Walker, Ian J ; Ollerhead, Jeff ; Rhew, Hosahng. / Assessing aeolian beach-surface dynamics using a remote sensing approach. In: Earth Surface Processes and Landforms. 2012 ; Vol. 37, No. 15. pp. 1651-1660.
@article{eb9de86328fe41aa86cbf7f9a64cec6c,
title = "Assessing aeolian beach-surface dynamics using a remote sensing approach",
abstract = "A remote sensing technique for assessing beach surface moisture was used to provide insight into beach-surface evolution during an aeolian event. An experiment was carried out on October 21, 2007 at Greenwich Dunes, Prince Edward Island National Park, Canada, during which cameras were mounted on a mast on the foredune crest at a height of about 14 m above the beach. Maps of beach surface moisture were created based on a calibrated relationship between surface brightness from the photographs and surface moisture content measured in situ at points spaced every 2.5 metres along a transect using a Delta-T moisture probe. A time sequence of maps of surface moisture content captured beach surface evolution through the transport event at a spatial and temporal resolution that would be difficult to achieve with other sampling techniques such as impedance probes. Erosion of the foreshore and berm crest resulted in an increase in surface moisture content in these areas as the wetter underlying sediments were exposed. Flow expansion downwind of the berm crest led to sand deposition and a consequent decrease in surface moisture content. Remote sensing systems such as the one presented here allow observations of the combined evolution of beach surface moisture, shoreline position, and fetch distances during short-term experiments and hence provide a comprehensive rendering of sediment erosion and transport processes.",
author = "Irene Delgado-Fernandez and Robin Davidson-Arnott and Bauer, {Bernard O} and Walker, {Ian J} and Jeff Ollerhead and Hosahng Rhew",
year = "2012",
month = "12",
doi = "10.1002/esp.3301",
language = "English",
volume = "37",
pages = "1651--1660",
journal = "Earth Surface Processes and Landforms",
issn = "0197-9337",
publisher = "John Wiley & Sons",
number = "15",

}

Delgado-Fernandez, I, Davidson-Arnott, R, Bauer, BO, Walker, IJ, Ollerhead, J & Rhew, H 2012, 'Assessing aeolian beach-surface dynamics using a remote sensing approach', Earth Surface Processes and Landforms, vol. 37, no. 15, pp. 1651-1660. https://doi.org/10.1002/esp.3301

Assessing aeolian beach-surface dynamics using a remote sensing approach. / Delgado-Fernandez, Irene; Davidson-Arnott, Robin; Bauer, Bernard O; Walker, Ian J; Ollerhead, Jeff; Rhew, Hosahng.

In: Earth Surface Processes and Landforms, Vol. 37, No. 15, 12.2012, p. 1651-1660.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Assessing aeolian beach-surface dynamics using a remote sensing approach

AU - Delgado-Fernandez, Irene

AU - Davidson-Arnott, Robin

AU - Bauer, Bernard O

AU - Walker, Ian J

AU - Ollerhead, Jeff

AU - Rhew, Hosahng

PY - 2012/12

Y1 - 2012/12

N2 - A remote sensing technique for assessing beach surface moisture was used to provide insight into beach-surface evolution during an aeolian event. An experiment was carried out on October 21, 2007 at Greenwich Dunes, Prince Edward Island National Park, Canada, during which cameras were mounted on a mast on the foredune crest at a height of about 14 m above the beach. Maps of beach surface moisture were created based on a calibrated relationship between surface brightness from the photographs and surface moisture content measured in situ at points spaced every 2.5 metres along a transect using a Delta-T moisture probe. A time sequence of maps of surface moisture content captured beach surface evolution through the transport event at a spatial and temporal resolution that would be difficult to achieve with other sampling techniques such as impedance probes. Erosion of the foreshore and berm crest resulted in an increase in surface moisture content in these areas as the wetter underlying sediments were exposed. Flow expansion downwind of the berm crest led to sand deposition and a consequent decrease in surface moisture content. Remote sensing systems such as the one presented here allow observations of the combined evolution of beach surface moisture, shoreline position, and fetch distances during short-term experiments and hence provide a comprehensive rendering of sediment erosion and transport processes.

AB - A remote sensing technique for assessing beach surface moisture was used to provide insight into beach-surface evolution during an aeolian event. An experiment was carried out on October 21, 2007 at Greenwich Dunes, Prince Edward Island National Park, Canada, during which cameras were mounted on a mast on the foredune crest at a height of about 14 m above the beach. Maps of beach surface moisture were created based on a calibrated relationship between surface brightness from the photographs and surface moisture content measured in situ at points spaced every 2.5 metres along a transect using a Delta-T moisture probe. A time sequence of maps of surface moisture content captured beach surface evolution through the transport event at a spatial and temporal resolution that would be difficult to achieve with other sampling techniques such as impedance probes. Erosion of the foreshore and berm crest resulted in an increase in surface moisture content in these areas as the wetter underlying sediments were exposed. Flow expansion downwind of the berm crest led to sand deposition and a consequent decrease in surface moisture content. Remote sensing systems such as the one presented here allow observations of the combined evolution of beach surface moisture, shoreline position, and fetch distances during short-term experiments and hence provide a comprehensive rendering of sediment erosion and transport processes.

U2 - 10.1002/esp.3301

DO - 10.1002/esp.3301

M3 - Article

VL - 37

SP - 1651

EP - 1660

JO - Earth Surface Processes and Landforms

JF - Earth Surface Processes and Landforms

SN - 0197-9337

IS - 15

ER -