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Independent Digital Elevation Model of Antarctica from GNSS-R data from TechDemoSat-1 - VERSION 2.0

Independent Digital Elevation Model of Antarctica from GNSS-R data from TechDemoSat-1 - VERSION 2.0
Independent Digital Elevation Model of Antarctica from GNSS-R data from TechDemoSat-1 - VERSION 2.0
Improved Digital Elevation Model (DEM) of the Antarctic Ice Sheet derived from Global Navigation Satellite Systems-Reflectometry (GNSS-R). This builds on a previous study (Cartwright et al., 2018) using GNSS-R to derive an Antarctic DEM but uses improved processing and an additional 13 months of measurements. A median bias of under 10 m and root-mean-square (RMS) errors of under 53 m are obtained, as compared to existing DEMs. Funding was provided by NERC grant NE/L002531/1.,Gridded group delay altimetry from TechDemoSat-1's GNSS-R data collected between September 2014 and December 2018. For full details see Cartwright et al., 2020.,SGR-ReSI, TechDemoSat-1,A median bias of under 10 m and root-mean-square (RMS) errors of under 53 m are obtained, as compared to existing DEMs. This represents, compared to the earlier study, a halving of the median bias to 9 m, an improvement in coverage of 18 %, and a four times higher spatial resolution (now gridded at 25 km). These are the first published satellite altimetry measurements of the region surrounding the South Pole. Comparisons south of 88° S yield RMS errors of less than 33 m when compared to NASA's Operation IceBridge measurements.,
British Antarctic Survey
Cartwright, Jessica
8a249815-a421-41ad-b13a-eb48c97ee95d
Banks, Christopher J.
280815d1-d97b-4dc2-8c9a-0eb753fec6df
Srokosz, Meric
321b4ace-89de-48e2-91b3-648562fc940e
Cartwright, Jessica
8a249815-a421-41ad-b13a-eb48c97ee95d
Banks, Christopher J.
280815d1-d97b-4dc2-8c9a-0eb753fec6df
Srokosz, Meric
321b4ace-89de-48e2-91b3-648562fc940e

Banks, Christopher J. and Srokosz, Meric (2020) Independent Digital Elevation Model of Antarctica from GNSS-R data from TechDemoSat-1 - VERSION 2.0. British Antarctic Survey doi:10.5285/c7a6d602-ab52-4f3c-90a4-42d0cd9f62d3 [Dataset]

Record type: Dataset

Abstract

Improved Digital Elevation Model (DEM) of the Antarctic Ice Sheet derived from Global Navigation Satellite Systems-Reflectometry (GNSS-R). This builds on a previous study (Cartwright et al., 2018) using GNSS-R to derive an Antarctic DEM but uses improved processing and an additional 13 months of measurements. A median bias of under 10 m and root-mean-square (RMS) errors of under 53 m are obtained, as compared to existing DEMs. Funding was provided by NERC grant NE/L002531/1.,Gridded group delay altimetry from TechDemoSat-1's GNSS-R data collected between September 2014 and December 2018. For full details see Cartwright et al., 2020.,SGR-ReSI, TechDemoSat-1,A median bias of under 10 m and root-mean-square (RMS) errors of under 53 m are obtained, as compared to existing DEMs. This represents, compared to the earlier study, a halving of the median bias to 9 m, an improvement in coverage of 18 %, and a four times higher spatial resolution (now gridded at 25 km). These are the first published satellite altimetry measurements of the region surrounding the South Pole. Comparisons south of 88° S yield RMS errors of less than 33 m when compared to NASA's Operation IceBridge measurements.,

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Published date: 1 January 2020

Identifiers

Local EPrints ID: 448703
URI: http://eprints.soton.ac.uk/id/eprint/448703
PURE UUID: eaaac644-4c33-4247-9bc1-477de925fdd5

Catalogue record

Date deposited: 30 Apr 2021 16:33
Last modified: 30 Apr 2021 16:33

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Contributors

Contributor: Jessica Cartwright
Creator: Christopher J. Banks
Creator: Meric Srokosz

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