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Pāhoehoe flow cooling, discharge and coverage rates from thermal image chronometry.

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Pāhoehoe flow cooling, discharge and coverage rates from thermal image chronometry. / Harris, Andrew J. L.; Dehn, Jonathan; James, Mike R. et al.
In: Geophysical Research Letters, Vol. 34, 05.10.2007, p. L19303.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Harris, AJL, Dehn, J, James, MR, Hamilton, C, Herd, R, Lodato, L & Steffke, A 2007, 'Pāhoehoe flow cooling, discharge and coverage rates from thermal image chronometry.', Geophysical Research Letters, vol. 34, pp. L19303. https://doi.org/10.1029/2007GL030791

APA

Harris, A. J. L., Dehn, J., James, M. R., Hamilton, C., Herd, R., Lodato, L., & Steffke, A. (2007). Pāhoehoe flow cooling, discharge and coverage rates from thermal image chronometry. Geophysical Research Letters, 34, L19303. https://doi.org/10.1029/2007GL030791

Vancouver

Harris AJL, Dehn J, James MR, Hamilton C, Herd R, Lodato L et al. Pāhoehoe flow cooling, discharge and coverage rates from thermal image chronometry. Geophysical Research Letters. 2007 Oct 5;34:L19303. doi: 10.1029/2007GL030791

Author

Harris, Andrew J. L. ; Dehn, Jonathan ; James, Mike R. et al. / Pāhoehoe flow cooling, discharge and coverage rates from thermal image chronometry. In: Geophysical Research Letters. 2007 ; Vol. 34. pp. L19303.

Bibtex

@article{107ee1b4ed3b4dbaac5273d48a005b05,
title = "Pāhoehoe flow cooling, discharge and coverage rates from thermal image chronometry.",
abstract = "Theoretically- and empirically-derived cooling rates for active pāhoehoe lava flows show that surface cooling is controlled by conductive heat loss through a crust that is thickening with the square root of time. The model is based on a linear relationship that links log(time) with surface cooling. This predictable cooling behavior can be used assess the age of recently emplaced sheet flows from their surface temperatures. Using a single thermal image, or image mosaic, this allows quantification of the variation in areal coverage rates and lava discharge rates over 48 hour periods prior to image capture. For pāhoehoe sheet flow at Kīlauea (Hawai`i) this gives coverage rates of 1–5 m2/min at discharge rates of 0.01–0.05 m3/s, increasing to ∼40 m2/min at 0.4–0.5 m3/s. Our thermal chronometry approach represents a quick and easy method of tracking flow advance over a three-day period using a single, thermal snap-shot.",
author = "Harris, {Andrew J. L.} and Jonathan Dehn and James, {Mike R.} and Christopher Hamilton and Richard Herd and Luigi Lodato and Andrea Steffke",
year = "2007",
month = oct,
day = "5",
doi = "10.1029/2007GL030791",
language = "English",
volume = "34",
pages = "L19303",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "John Wiley & Sons, Ltd",

}

RIS

TY - JOUR

T1 - Pāhoehoe flow cooling, discharge and coverage rates from thermal image chronometry.

AU - Harris, Andrew J. L.

AU - Dehn, Jonathan

AU - James, Mike R.

AU - Hamilton, Christopher

AU - Herd, Richard

AU - Lodato, Luigi

AU - Steffke, Andrea

PY - 2007/10/5

Y1 - 2007/10/5

N2 - Theoretically- and empirically-derived cooling rates for active pāhoehoe lava flows show that surface cooling is controlled by conductive heat loss through a crust that is thickening with the square root of time. The model is based on a linear relationship that links log(time) with surface cooling. This predictable cooling behavior can be used assess the age of recently emplaced sheet flows from their surface temperatures. Using a single thermal image, or image mosaic, this allows quantification of the variation in areal coverage rates and lava discharge rates over 48 hour periods prior to image capture. For pāhoehoe sheet flow at Kīlauea (Hawai`i) this gives coverage rates of 1–5 m2/min at discharge rates of 0.01–0.05 m3/s, increasing to ∼40 m2/min at 0.4–0.5 m3/s. Our thermal chronometry approach represents a quick and easy method of tracking flow advance over a three-day period using a single, thermal snap-shot.

AB - Theoretically- and empirically-derived cooling rates for active pāhoehoe lava flows show that surface cooling is controlled by conductive heat loss through a crust that is thickening with the square root of time. The model is based on a linear relationship that links log(time) with surface cooling. This predictable cooling behavior can be used assess the age of recently emplaced sheet flows from their surface temperatures. Using a single thermal image, or image mosaic, this allows quantification of the variation in areal coverage rates and lava discharge rates over 48 hour periods prior to image capture. For pāhoehoe sheet flow at Kīlauea (Hawai`i) this gives coverage rates of 1–5 m2/min at discharge rates of 0.01–0.05 m3/s, increasing to ∼40 m2/min at 0.4–0.5 m3/s. Our thermal chronometry approach represents a quick and easy method of tracking flow advance over a three-day period using a single, thermal snap-shot.

U2 - 10.1029/2007GL030791

DO - 10.1029/2007GL030791

M3 - Journal article

VL - 34

SP - L19303

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

ER -