Preliminary results of the ice_sheet_CCI round robin activity on the estimation of surface elevation changes

F. Ticconi; Joanna Fredenslund Levinsen; K. Khvorostovsky; René Forsberg; A. Shepherd

doi:10.1109/IGARSS.2013.6721137

Preliminary results of the ice_sheet_CCI round robin activity on the estimation of surface elevation changes

F. Ticconi, Joanna Fredenslund Levinsen, K. Khvorostovsky, René Forsberg, A. Shepherd

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

This work presents the first results of a research activity aiming to compare estimates of Surface Elevation Changes (SEC) over the Jakobshavn Isbræ basin (Greenland) using different repeat altimetry techniques and different sensors (laser vs. radar altimetry). The goal of this comparison is the identification of the best performing algorithm, in terms of accuracy, coverage and processing effort, for the generation of surface elevation change maps. The methods investigated here are the cross-over and repeat-track. The results of the inter-comparison are here reported and, from a first analysis, it is found that both radar and laser altimetry resolve the surface elevation changes quite well, and that the problems found mainly in the coastal region and along the main trunk can be solved by combining the two methods. The comparison with airborne lidar data from the NASA ICEBridge and the ESA CryoVex campaigns is in progress.

Original language	English
Title of host publication	Proceedings of IGARSS 2013
Number of pages	4
Publisher	IEEE
Publication date	2013
Pages	244-247
ISBN (Print)	978-1-4799-1114-1
DOIs	https://doi.org/10.1109/IGARSS.2013.6721137
Publication status	Published - 2013
Event	2013 IEEE International Geoscience and Remote Sensing Symposium - Melbourne, Australia Duration: 21 Jul 2013 → 26 Jul 2013 https://ieeexplore.ieee.org/xpl/conhome/6704876/proceeding

Conference

Conference	2013 IEEE International Geoscience and Remote Sensing Symposium
Country/Territory	Australia
City	Melbourne
Period	21/07/2013 → 26/07/2013
Internet address	https://ieeexplore.ieee.org/xpl/conhome/6704876/proceeding

Series	IEEE International Geoscience and Remote Sensing Symposium Proceedings
ISSN	2153-6996

Keywords

glaciology
height measurement
hydrological techniques
optical radar
remote sensing by laser beam
remote sensing by radar
Fields, Waves and Electromagnetics
airborne lidar data
algorithm accuracy
algorithm coverage
algorithm processing effort
Altimetry
cross over method
ESA CryoVex campaign
glacier surface elevation changes
Greenland
Ice
Ice_Sheet_CCI round robin activity
Jakobshavn Isbrae basin
laser altimetry
Laser radar
NASA ICEBridge campaign
radar altimetry
repeat altimetry techniques
repeat track method
repeat-pass altimetry
SEC estimation
Sensors
Spaceborne radar
surface elevation change estimation
surface elevation change map generation
Surface topography

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10.1109/IGARSS.2013.6721137

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Ticconi, F., Fredenslund Levinsen, J., Khvorostovsky, K., Forsberg, R., & Shepherd, A. (2013). Preliminary results of the ice_sheet_CCI round robin activity on the estimation of surface elevation changes. In Proceedings of IGARSS 2013 (pp. 244-247). IEEE. IEEE International Geoscience and Remote Sensing Symposium Proceedings https://doi.org/10.1109/IGARSS.2013.6721137

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title = "Preliminary results of the ice_sheet_CCI round robin activity on the estimation of surface elevation changes",

abstract = "This work presents the first results of a research activity aiming to compare estimates of Surface Elevation Changes (SEC) over the Jakobshavn Isbr{\ae} basin (Greenland) using different repeat altimetry techniques and different sensors (laser vs. radar altimetry). The goal of this comparison is the identification of the best performing algorithm, in terms of accuracy, coverage and processing effort, for the generation of surface elevation change maps. The methods investigated here are the cross-over and repeat-track. The results of the inter-comparison are here reported and, from a first analysis, it is found that both radar and laser altimetry resolve the surface elevation changes quite well, and that the problems found mainly in the coastal region and along the main trunk can be solved by combining the two methods. The comparison with airborne lidar data from the NASA ICEBridge and the ESA CryoVex campaigns is in progress.",

keywords = "glaciology, height measurement, hydrological techniques, optical radar, remote sensing by laser beam, remote sensing by radar, Fields, Waves and Electromagnetics, airborne lidar data, algorithm accuracy, algorithm coverage, algorithm processing effort, Altimetry, cross over method, ESA CryoVex campaign, glacier surface elevation changes, Greenland, Ice, Ice_Sheet_CCI round robin activity, Jakobshavn Isbrae basin, laser altimetry, Laser radar, NASA ICEBridge campaign, radar altimetry, repeat altimetry techniques, repeat track method, repeat-pass altimetry, SEC estimation, Sensors, Spaceborne radar, surface elevation change estimation, surface elevation change map generation, Surface topography",

author = "F. Ticconi and {Fredenslund Levinsen}, Joanna and K. Khvorostovsky and Ren{\'e} Forsberg and A. Shepherd",

year = "2013",

doi = "10.1109/IGARSS.2013.6721137",

language = "English",

isbn = "978-1-4799-1114-1",

series = "IEEE International Geoscience and Remote Sensing Symposium Proceedings",

pages = "244--247",

booktitle = "Proceedings of IGARSS 2013",

publisher = "IEEE",

address = "United States",

note = "2013 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2013 ; Conference date: 21-07-2013 Through 26-07-2013",

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}

Ticconi, F, Fredenslund Levinsen, J, Khvorostovsky, K, Forsberg, R & Shepherd, A 2013, Preliminary results of the ice_sheet_CCI round robin activity on the estimation of surface elevation changes. in Proceedings of IGARSS 2013. IEEE, IEEE International Geoscience and Remote Sensing Symposium Proceedings, pp. 244-247, 2013 IEEE International Geoscience and Remote Sensing Symposium, Melbourne, Victoria, Australia, 21/07/2013. https://doi.org/10.1109/IGARSS.2013.6721137

Preliminary results of the ice_sheet_CCI round robin activity on the estimation of surface elevation changes. / Ticconi, F.; Fredenslund Levinsen, Joanna; Khvorostovsky, K. et al.
Proceedings of IGARSS 2013. IEEE, 2013. p. 244-247 (IEEE International Geoscience and Remote Sensing Symposium Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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AU - Fredenslund Levinsen, Joanna

AU - Khvorostovsky, K.

AU - Forsberg, René

AU - Shepherd, A.

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N2 - This work presents the first results of a research activity aiming to compare estimates of Surface Elevation Changes (SEC) over the Jakobshavn Isbræ basin (Greenland) using different repeat altimetry techniques and different sensors (laser vs. radar altimetry). The goal of this comparison is the identification of the best performing algorithm, in terms of accuracy, coverage and processing effort, for the generation of surface elevation change maps. The methods investigated here are the cross-over and repeat-track. The results of the inter-comparison are here reported and, from a first analysis, it is found that both radar and laser altimetry resolve the surface elevation changes quite well, and that the problems found mainly in the coastal region and along the main trunk can be solved by combining the two methods. The comparison with airborne lidar data from the NASA ICEBridge and the ESA CryoVex campaigns is in progress.

AB - This work presents the first results of a research activity aiming to compare estimates of Surface Elevation Changes (SEC) over the Jakobshavn Isbræ basin (Greenland) using different repeat altimetry techniques and different sensors (laser vs. radar altimetry). The goal of this comparison is the identification of the best performing algorithm, in terms of accuracy, coverage and processing effort, for the generation of surface elevation change maps. The methods investigated here are the cross-over and repeat-track. The results of the inter-comparison are here reported and, from a first analysis, it is found that both radar and laser altimetry resolve the surface elevation changes quite well, and that the problems found mainly in the coastal region and along the main trunk can be solved by combining the two methods. The comparison with airborne lidar data from the NASA ICEBridge and the ESA CryoVex campaigns is in progress.

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KW - height measurement

KW - hydrological techniques

KW - optical radar

KW - remote sensing by laser beam

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KW - algorithm accuracy

KW - algorithm coverage

KW - algorithm processing effort

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KW - cross over method

KW - ESA CryoVex campaign

KW - glacier surface elevation changes

KW - Greenland

KW - Ice

KW - Ice_Sheet_CCI round robin activity

KW - Jakobshavn Isbrae basin

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KW - Laser radar

KW - NASA ICEBridge campaign

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KW - repeat altimetry techniques

KW - repeat track method

KW - repeat-pass altimetry

KW - SEC estimation

KW - Sensors

KW - Spaceborne radar

KW - surface elevation change estimation

KW - surface elevation change map generation

KW - Surface topography

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T3 - IEEE International Geoscience and Remote Sensing Symposium Proceedings

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ER -

Preliminary results of the ice_sheet_CCI round robin activity on the estimation of surface elevation changes

Abstract

Conference

Keywords

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