Home > Research > Publications & Outputs > A comparison of modelled ice thickness and volu...

Electronic data

  • APicethickness_GEOGANN_final2

    Rights statement: This is an Accepted Manuscript of an article published by Taylor & Francis in Geografiska Annaler: Series A, Physical Geography on 31/10/2018, available online: https://www.tandfonline.com/doi/full/10.1080/04353676.2018.1539830

    Accepted author manuscript, 1.08 MB, PDF document

    Available under license: CC BY-NC: Creative Commons Attribution-NonCommercial 4.0 International License

Links

Text available via DOI:

View graph of relations

A comparison of modelled ice thickness and volume across the entire Antarctic Peninsula region

Research output: Contribution to journalJournal article

Published

Standard

A comparison of modelled ice thickness and volume across the entire Antarctic Peninsula region. / Carrivick, Jonathan L.; Davies, Bethan J.; James, William H.M.; McMillan, Malcolm; Glasser, Neil F.

In: Geografiska Annaler, Series A: Physical Geography, Vol. 101, No. 1, 2019, p. 45-67.

Research output: Contribution to journalJournal article

Harvard

Carrivick, JL, Davies, BJ, James, WHM, McMillan, M & Glasser, NF 2019, 'A comparison of modelled ice thickness and volume across the entire Antarctic Peninsula region', Geografiska Annaler, Series A: Physical Geography, vol. 101, no. 1, pp. 45-67. https://doi.org/10.1080/04353676.2018.1539830

APA

Carrivick, J. L., Davies, B. J., James, W. H. M., McMillan, M., & Glasser, N. F. (2019). A comparison of modelled ice thickness and volume across the entire Antarctic Peninsula region. Geografiska Annaler, Series A: Physical Geography, 101(1), 45-67. https://doi.org/10.1080/04353676.2018.1539830

Vancouver

Carrivick JL, Davies BJ, James WHM, McMillan M, Glasser NF. A comparison of modelled ice thickness and volume across the entire Antarctic Peninsula region. Geografiska Annaler, Series A: Physical Geography. 2019;101(1):45-67. https://doi.org/10.1080/04353676.2018.1539830

Author

Carrivick, Jonathan L. ; Davies, Bethan J. ; James, William H.M. ; McMillan, Malcolm ; Glasser, Neil F. / A comparison of modelled ice thickness and volume across the entire Antarctic Peninsula region. In: Geografiska Annaler, Series A: Physical Geography. 2019 ; Vol. 101, No. 1. pp. 45-67.

Bibtex

@article{91927b5870b946fc9e5821ece314b0e7,
title = "A comparison of modelled ice thickness and volume across the entire Antarctic Peninsula region",
abstract = "Understanding Antarctic Peninsula glacier evolution requires distributed ice thickness and subglacial topography. To date, 80% of the Antarctic Peninsula mainland ice volume has only been determined at low-resolution (1 km post spacing) and the distributed ice thickness of glaciers on surrounding islands has never been quantified. In this study we applied a perfect plasticity model, selected for its simplicity, low data requirements and minimal parameterisation, to estimate glacier thickness, subglacial topography and ice volume for the entire Antarctic Peninsula region. We compared the output of this simple model to that of a more sophisticated but spatially-restricted model and also to the spatially-coarse but more extensive Bedmap2 dataset. The simple model produced mean differences of 1.4 m (std. dev. 243 m) in comparison with the more sophisticated approach for the mountainous parts of the Peninsula. It produced similar volumes for tidewater glaciers but gave unrealistic ice thickness around grounding lines. Ice thickness across low gradient plateau surfaces are mis-represented by a perfect plasticity model and thus for the southern part of the Peninsula only regional ice volume can be approximated by our model. Overall, with consideration of ice situated below sea level, model results suggest that Trinity Peninsula, Graham Land, the part of Palmer Land north of 74°S and all glaciers on islands contain an ice mass of ∼200 300 Gt, with sea level equivalent of 553 mm (± 11.6 mm). Of this total 8% is from glaciers on islands, 70% of which is from Alexander Island.",
keywords = "Antarctica, Glacier, sea level",
author = "Carrivick, {Jonathan L.} and Davies, {Bethan J.} and James, {William H.M.} and Malcolm McMillan and Glasser, {Neil F.}",
note = "This is an Accepted Manuscript of an article published by Taylor & Francis in Geografiska Annaler: Series A, Physical Geography on 31/10/2018, available online: https://www.tandfonline.com/doi/full/10.1080/04353676.2018.1539830",
year = "2019",
doi = "10.1080/04353676.2018.1539830",
language = "English",
volume = "101",
pages = "45--67",
journal = "Geografiska Annaler, Series A: Physical Geography",
issn = "0435-3676",
publisher = "Taylor and Francis Ltd.",
number = "1",

}

RIS

TY - JOUR

T1 - A comparison of modelled ice thickness and volume across the entire Antarctic Peninsula region

AU - Carrivick, Jonathan L.

AU - Davies, Bethan J.

AU - James, William H.M.

AU - McMillan, Malcolm

AU - Glasser, Neil F.

N1 - This is an Accepted Manuscript of an article published by Taylor & Francis in Geografiska Annaler: Series A, Physical Geography on 31/10/2018, available online: https://www.tandfonline.com/doi/full/10.1080/04353676.2018.1539830

PY - 2019

Y1 - 2019

N2 - Understanding Antarctic Peninsula glacier evolution requires distributed ice thickness and subglacial topography. To date, 80% of the Antarctic Peninsula mainland ice volume has only been determined at low-resolution (1 km post spacing) and the distributed ice thickness of glaciers on surrounding islands has never been quantified. In this study we applied a perfect plasticity model, selected for its simplicity, low data requirements and minimal parameterisation, to estimate glacier thickness, subglacial topography and ice volume for the entire Antarctic Peninsula region. We compared the output of this simple model to that of a more sophisticated but spatially-restricted model and also to the spatially-coarse but more extensive Bedmap2 dataset. The simple model produced mean differences of 1.4 m (std. dev. 243 m) in comparison with the more sophisticated approach for the mountainous parts of the Peninsula. It produced similar volumes for tidewater glaciers but gave unrealistic ice thickness around grounding lines. Ice thickness across low gradient plateau surfaces are mis-represented by a perfect plasticity model and thus for the southern part of the Peninsula only regional ice volume can be approximated by our model. Overall, with consideration of ice situated below sea level, model results suggest that Trinity Peninsula, Graham Land, the part of Palmer Land north of 74°S and all glaciers on islands contain an ice mass of ∼200 300 Gt, with sea level equivalent of 553 mm (± 11.6 mm). Of this total 8% is from glaciers on islands, 70% of which is from Alexander Island.

AB - Understanding Antarctic Peninsula glacier evolution requires distributed ice thickness and subglacial topography. To date, 80% of the Antarctic Peninsula mainland ice volume has only been determined at low-resolution (1 km post spacing) and the distributed ice thickness of glaciers on surrounding islands has never been quantified. In this study we applied a perfect plasticity model, selected for its simplicity, low data requirements and minimal parameterisation, to estimate glacier thickness, subglacial topography and ice volume for the entire Antarctic Peninsula region. We compared the output of this simple model to that of a more sophisticated but spatially-restricted model and also to the spatially-coarse but more extensive Bedmap2 dataset. The simple model produced mean differences of 1.4 m (std. dev. 243 m) in comparison with the more sophisticated approach for the mountainous parts of the Peninsula. It produced similar volumes for tidewater glaciers but gave unrealistic ice thickness around grounding lines. Ice thickness across low gradient plateau surfaces are mis-represented by a perfect plasticity model and thus for the southern part of the Peninsula only regional ice volume can be approximated by our model. Overall, with consideration of ice situated below sea level, model results suggest that Trinity Peninsula, Graham Land, the part of Palmer Land north of 74°S and all glaciers on islands contain an ice mass of ∼200 300 Gt, with sea level equivalent of 553 mm (± 11.6 mm). Of this total 8% is from glaciers on islands, 70% of which is from Alexander Island.

KW - Antarctica

KW - Glacier

KW - sea level

U2 - 10.1080/04353676.2018.1539830

DO - 10.1080/04353676.2018.1539830

M3 - Journal article

AN - SCOPUS:85055747304

VL - 101

SP - 45

EP - 67

JO - Geografiska Annaler, Series A: Physical Geography

JF - Geografiska Annaler, Series A: Physical Geography

SN - 0435-3676

IS - 1

ER -