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A new digital elevation model of Antarctica derived from CryoSat-2 altimetry

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A new digital elevation model of Antarctica derived from CryoSat-2 altimetry. / Slater, Thomas; Shepherd, Andrew; Mcmillan, Malcolm et al.
In: Cryosphere, Vol. 12, No. 4, 02.05.2018, p. 1551-1562.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Slater, T, Shepherd, A, Mcmillan, M, Muir, A, Gilbert, L, Hogg, AE, Konrad, H & Parrinello, T 2018, 'A new digital elevation model of Antarctica derived from CryoSat-2 altimetry', Cryosphere, vol. 12, no. 4, pp. 1551-1562. https://doi.org/10.5194/tc-12-1551-2018

APA

Slater, T., Shepherd, A., Mcmillan, M., Muir, A., Gilbert, L., Hogg, A. E., Konrad, H., & Parrinello, T. (2018). A new digital elevation model of Antarctica derived from CryoSat-2 altimetry. Cryosphere, 12(4), 1551-1562. https://doi.org/10.5194/tc-12-1551-2018

Vancouver

Slater T, Shepherd A, Mcmillan M, Muir A, Gilbert L, Hogg AE et al. A new digital elevation model of Antarctica derived from CryoSat-2 altimetry. Cryosphere. 2018 May 2;12(4):1551-1562. doi: 10.5194/tc-12-1551-2018

Author

Slater, Thomas ; Shepherd, Andrew ; Mcmillan, Malcolm et al. / A new digital elevation model of Antarctica derived from CryoSat-2 altimetry. In: Cryosphere. 2018 ; Vol. 12, No. 4. pp. 1551-1562.

Bibtex

@article{f6d719f705a144cf8d047db5d388980b,
title = "A new digital elevation model of Antarctica derived from CryoSat-2 altimetry",
abstract = "We present a new digital elevation model (DEM) of the Antarctic ice sheet and ice shelves based on 2.5×108 observations recorded by the CryoSat-2 satellite radar altimeter between July 2010 and July 2016. The DEM is formed from spatio-temporal fits to elevation measurements accumulated within 1, 2, and 5 km grid cells, and is posted at the modal resolution of 1 km. Altogether, 94 % of the grounded ice sheet and 98 % of the floating ice shelves are observed, and the remaining grid cells north of 88° S are interpolated using ordinary kriging. The median and root mean square difference between the DEM and 2.3×107 airborne laser altimeter measurements acquired during NASA Operation IceBridge campaigns are ĝ'0.30 and 13.50 m, respectively. The DEM uncertainty rises in regions of high slope, especially where elevation measurements were acquired in low-resolution mode; taking this into account, we estimate the average accuracy to be 9.5 m - a value that is comparable to or better than that of other models derived from satellite radar and laser altimetry.",
author = "Thomas Slater and Andrew Shepherd and Malcolm Mcmillan and Alan Muir and Lin Gilbert and Hogg, {Anna E.} and Hannes Konrad and Tommaso Parrinello",
year = "2018",
month = may,
day = "2",
doi = "10.5194/tc-12-1551-2018",
language = "English",
volume = "12",
pages = "1551--1562",
journal = "Cryosphere",
issn = "1994-0416",
publisher = "Copernicus Gesellschaft mbH",
number = "4",

}

RIS

TY - JOUR

T1 - A new digital elevation model of Antarctica derived from CryoSat-2 altimetry

AU - Slater, Thomas

AU - Shepherd, Andrew

AU - Mcmillan, Malcolm

AU - Muir, Alan

AU - Gilbert, Lin

AU - Hogg, Anna E.

AU - Konrad, Hannes

AU - Parrinello, Tommaso

PY - 2018/5/2

Y1 - 2018/5/2

N2 - We present a new digital elevation model (DEM) of the Antarctic ice sheet and ice shelves based on 2.5×108 observations recorded by the CryoSat-2 satellite radar altimeter between July 2010 and July 2016. The DEM is formed from spatio-temporal fits to elevation measurements accumulated within 1, 2, and 5 km grid cells, and is posted at the modal resolution of 1 km. Altogether, 94 % of the grounded ice sheet and 98 % of the floating ice shelves are observed, and the remaining grid cells north of 88° S are interpolated using ordinary kriging. The median and root mean square difference between the DEM and 2.3×107 airborne laser altimeter measurements acquired during NASA Operation IceBridge campaigns are ĝ'0.30 and 13.50 m, respectively. The DEM uncertainty rises in regions of high slope, especially where elevation measurements were acquired in low-resolution mode; taking this into account, we estimate the average accuracy to be 9.5 m - a value that is comparable to or better than that of other models derived from satellite radar and laser altimetry.

AB - We present a new digital elevation model (DEM) of the Antarctic ice sheet and ice shelves based on 2.5×108 observations recorded by the CryoSat-2 satellite radar altimeter between July 2010 and July 2016. The DEM is formed from spatio-temporal fits to elevation measurements accumulated within 1, 2, and 5 km grid cells, and is posted at the modal resolution of 1 km. Altogether, 94 % of the grounded ice sheet and 98 % of the floating ice shelves are observed, and the remaining grid cells north of 88° S are interpolated using ordinary kriging. The median and root mean square difference between the DEM and 2.3×107 airborne laser altimeter measurements acquired during NASA Operation IceBridge campaigns are ĝ'0.30 and 13.50 m, respectively. The DEM uncertainty rises in regions of high slope, especially where elevation measurements were acquired in low-resolution mode; taking this into account, we estimate the average accuracy to be 9.5 m - a value that is comparable to or better than that of other models derived from satellite radar and laser altimetry.

U2 - 10.5194/tc-12-1551-2018

DO - 10.5194/tc-12-1551-2018

M3 - Journal article

AN - SCOPUS:85046658997

VL - 12

SP - 1551

EP - 1562

JO - Cryosphere

JF - Cryosphere

SN - 1994-0416

IS - 4

ER -