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Independent DEM of Antarctica using GNSS-R data from TechDemoSat-1

Independent DEM of Antarctica using GNSS-R data from TechDemoSat-1
Independent DEM of Antarctica using GNSS-R data from TechDemoSat-1

The first digital elevation model (DEM) of the Antarctic ice sheet derived from Global Navigation Satellite Systems-Reflectometry (GNSS-R) data from the UK TechDemoSat-1 satellite is presented. This is obtained using 32 months of data from the mission. This opportunistic and inexpensive method is shown to produce encouraging results from the technology demonstration platform of TechDemoSat-1, with median bias under 18 m and root-mean-square difference under 91 m when compared to the CryoSat-2 1-km DEM v1.0. Discrepancies between the two data sets are explored along with possible causes of such differences and potential improvements to further optimize this technique for future GNSS-R missions.

altimetry, Antarctic DEM, Antarctic ice shelf, GNSS-R, TechDemoSat-1
0094-8276
6117-6123
Cartwright, Jessica
8a249815-a421-41ad-b13a-eb48c97ee95d
Clarizia, Maria Paola
7349af33-1064-407f-b946-cec8e12fd89d
Cipollini, Paolo
276e356a-f29e-4192-98b3-9340b491dab8
Banks, Christopher J.
5d65ec1e-ed5f-48fc-9b05-3e46f24c35dc
Srokosz, Meric
1e0442ce-679f-43f2-8fe4-9a0f0174d483
Cartwright, Jessica
8a249815-a421-41ad-b13a-eb48c97ee95d
Clarizia, Maria Paola
7349af33-1064-407f-b946-cec8e12fd89d
Cipollini, Paolo
276e356a-f29e-4192-98b3-9340b491dab8
Banks, Christopher J.
5d65ec1e-ed5f-48fc-9b05-3e46f24c35dc
Srokosz, Meric
1e0442ce-679f-43f2-8fe4-9a0f0174d483

Cartwright, Jessica, Clarizia, Maria Paola, Cipollini, Paolo, Banks, Christopher J. and Srokosz, Meric (2018) Independent DEM of Antarctica using GNSS-R data from TechDemoSat-1. Geophysical Research Letters, 45 (12), 6117-6123. (doi:10.1029/2018GL077429).

Record type: Letter

Abstract

The first digital elevation model (DEM) of the Antarctic ice sheet derived from Global Navigation Satellite Systems-Reflectometry (GNSS-R) data from the UK TechDemoSat-1 satellite is presented. This is obtained using 32 months of data from the mission. This opportunistic and inexpensive method is shown to produce encouraging results from the technology demonstration platform of TechDemoSat-1, with median bias under 18 m and root-mean-square difference under 91 m when compared to the CryoSat-2 1-km DEM v1.0. Discrepancies between the two data sets are explored along with possible causes of such differences and potential improvements to further optimize this technique for future GNSS-R missions.

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More information

Accepted/In Press date: 29 May 2018
e-pub ahead of print date: 11 June 2018
Published date: 28 June 2018
Keywords: altimetry, Antarctic DEM, Antarctic ice shelf, GNSS-R, TechDemoSat-1

Identifiers

Local EPrints ID: 422592
URI: https://eprints.soton.ac.uk/id/eprint/422592
ISSN: 0094-8276
PURE UUID: e2f139e7-c5b3-464e-9884-adf2f4edf15d

Catalogue record

Date deposited: 26 Jul 2018 16:30
Last modified: 13 Mar 2019 18:13

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