Hydraulic modelling of Athabasca Vallis, Mars

Devon M. Burr

doi:10.1623/hysj.48.4.655.51407

Hydraulic modelling of Athabasca Vallis, Mars

Devon M. Burr

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

Palaeohydraulic modelling is presented for Athabasca Vallis, the youngest known catastrophic flood channel on Mars. This modelling incorporates three significant advantages over previous modelling of Martian channels: a step-backwater hydraulic model; more accurate topography; and improved flood height indicators The maximum modelled palaeodischarge is between 1 × 10⁶ and 2 × 10⁶ m³ s^-1 depending on the friction coefficient selected. An anomalously high palaeostage indicator suggests a region of ponded backwater in the channel in which streamlined forms were created through deposition, with the additional possibility of post-flood subsidence/lowering of the channel slope due to magma extrusion.

Original language	English (US)
Pages (from-to)	655-664
Number of pages	10
Journal	Hydrological Sciences Journal
Volume	48
Issue number	4
DOIs	https://doi.org/10.1623/hysj.48.4.655.51407
State	Published - Aug 2003
Externally published	Yes

Keywords

Athabasca Vallis
Backwater
Catastrophic flooding
Hydraulic modelling
Mars

ASJC Scopus subject areas

Water Science and Technology

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10.1623/hysj.48.4.655.51407

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title = "Hydraulic modelling of Athabasca Vallis, Mars",

abstract = "Palaeohydraulic modelling is presented for Athabasca Vallis, the youngest known catastrophic flood channel on Mars. This modelling incorporates three significant advantages over previous modelling of Martian channels: a step-backwater hydraulic model; more accurate topography; and improved flood height indicators The maximum modelled palaeodischarge is between 1 × 106 and 2 × 106 m3 s-1 depending on the friction coefficient selected. An anomalously high palaeostage indicator suggests a region of ponded backwater in the channel in which streamlined forms were created through deposition, with the additional possibility of post-flood subsidence/lowering of the channel slope due to magma extrusion.",

keywords = "Athabasca Vallis, Backwater, Catastrophic flooding, Hydraulic modelling, Mars",

author = "Burr, {Devon M.}",

note = "Funding Information: Finanziamenti: questo lavoro {\`e} stato finanziato dal Medical Research Council come parte del MRCeNational Institute for Health Research (NIHR) Methodology Research Programme (Grant number MR/ K01465X/1). Il tempo di B.C.R. per contribuire allo studio {\`e} stato fi-nanziato dal NIHR Bristol Biomedical Research Unit in Cardiovascular Disease. D.M.C. {\`e} supportato dal Medical Research Council (UK) Population Health Science fellowship (G0902118).",

year = "2003",

month = aug,

doi = "10.1623/hysj.48.4.655.51407",

language = "English (US)",

volume = "48",

pages = "655--664",

journal = "Hydrological Sciences Journal",

issn = "0262-6667",

publisher = "Taylor and Francis Ltd.",

number = "4",

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TY - JOUR

T1 - Hydraulic modelling of Athabasca Vallis, Mars

AU - Burr, Devon M.

N1 - Funding Information: Finanziamenti: questo lavoro è stato finanziato dal Medical Research Council come parte del MRCeNational Institute for Health Research (NIHR) Methodology Research Programme (Grant number MR/ K01465X/1). Il tempo di B.C.R. per contribuire allo studio è stato fi-nanziato dal NIHR Bristol Biomedical Research Unit in Cardiovascular Disease. D.M.C. è supportato dal Medical Research Council (UK) Population Health Science fellowship (G0902118).

PY - 2003/8

Y1 - 2003/8

N2 - Palaeohydraulic modelling is presented for Athabasca Vallis, the youngest known catastrophic flood channel on Mars. This modelling incorporates three significant advantages over previous modelling of Martian channels: a step-backwater hydraulic model; more accurate topography; and improved flood height indicators The maximum modelled palaeodischarge is between 1 × 106 and 2 × 106 m3 s-1 depending on the friction coefficient selected. An anomalously high palaeostage indicator suggests a region of ponded backwater in the channel in which streamlined forms were created through deposition, with the additional possibility of post-flood subsidence/lowering of the channel slope due to magma extrusion.

AB - Palaeohydraulic modelling is presented for Athabasca Vallis, the youngest known catastrophic flood channel on Mars. This modelling incorporates three significant advantages over previous modelling of Martian channels: a step-backwater hydraulic model; more accurate topography; and improved flood height indicators The maximum modelled palaeodischarge is between 1 × 106 and 2 × 106 m3 s-1 depending on the friction coefficient selected. An anomalously high palaeostage indicator suggests a region of ponded backwater in the channel in which streamlined forms were created through deposition, with the additional possibility of post-flood subsidence/lowering of the channel slope due to magma extrusion.

KW - Athabasca Vallis

KW - Backwater

KW - Catastrophic flooding

KW - Hydraulic modelling

KW - Mars

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DO - 10.1623/hysj.48.4.655.51407

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SN - 0262-6667

VL - 48

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EP - 664

JO - Hydrological Sciences Journal

JF - Hydrological Sciences Journal

IS - 4

ER -

Hydraulic modelling of Athabasca Vallis, Mars

Abstract

Keywords

ASJC Scopus subject areas

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