Skip to main content Accessibility help
×
Home

Antarctic ice velocities from GPS locations logged by seismic stations

Published online by Cambridge University Press:  17 November 2014


Meijian An
Affiliation:
Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China
Douglas Wiens
Affiliation:
Department of Earth and Planetary Science, Washington University, St Louis, MO 63130-4899, USA
Chunlei An
Affiliation:
Polar Research Institute of China, Shanghai 200136, China
Guitao Shi
Affiliation:
Polar Research Institute of China, Shanghai 200136, China
Yue Zhao
Affiliation:
Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China
Yuansheng Li
Affiliation:
Polar Research Institute of China, Shanghai 200136, China
Corresponding
E-mail address:

Abstract

In 2007–08, seismologists began deploying passive seismic stations over much of the Antarctic ice sheet. These stations routinely log their position by navigation-grade global positioning system (GPS) receivers. This location data can be used to track the stations situated on moving ice. For stations along the traverse from Zhongshan station to Dome A in East Antarctica and at the West Antarctic Ice Sheet divide the estimated velocities of the ice surface based on positions recorded by navigation-grade GPS are consistent with those obtained by high-accuracy geodetic GPS. Most of the estimated velocities have an angle difference of <28° with the steepest downhill vector of the ice surface slope at the stations. These results indicate that navigation-grade GPS measurements over several months provide reliable information on ice sheet movement of ≥1 m yr-1. With an uncertainty of ~0.3–1 m yr-1, this method is able to resolve both very slow ice velocities near Dome A and velocities of >100 m yr-1 on Thwaites Glacier. Information on ice velocity at three locations for which no data from satellite-based interferometric synthetic aperture radar are available have also been provided using this method.


Type
Physical Sciences
Copyright
© Antarctic Science Ltd 2014 

Access options

Get access to the full version of this content by using one of the access options below.

References

An, M. 2012. A simple method for determining the spatial resolution of a general inverse problem. Geophysical Journal International, 191, 849864.CrossRefGoogle Scholar
Bindschadler, R.A. & Scambos, T.A. 1991. Satellite-image-derived velocity-field of an Antarctic ice stream. Science, 252, 242246.CrossRefGoogle ScholarPubMed
Bouin, M.N. & Vigny, C. 2000. New constraints on Antarctic plate motion and deformation from GPS data. Journal of Geophysical Research - Solid Earth, 105, 28 27928 293.CrossRefGoogle Scholar
Budd, W.F., Corry, M.J. & Jacka, T.H. 1982. Results from the Amery Ice Shelf project. Annals of Glaciology, 3, 3641.CrossRefGoogle Scholar
Cheng, X., Li, X.W., Shao, Y. & Li, Z. 2007. DINSAR measurement of glacier motion in Antarctic Grove Mountain. Chinese Science Bulletin, 52, 358366.CrossRefGoogle Scholar
Cuffey, K.M. & Paterson, W.S.B. 2010. The physics of glaciers, 4th ed. Burlington, MA: Elsevier, 704 pp.Google Scholar
Den Ouden, M.A.G., Reijmer, C.H., Pohjola, V., van de Wal, R.S.W., Oerlemans, J. & Boot, W. 2010. Stand-alone single-frequency GPS ice velocity observations on Nordenskiöldbreen, Svalbard. Cryosphere, 4, 593604.CrossRefGoogle Scholar
Dziewonski, A.M. & Anderson, D.L. 1981. Preliminary reference Earth model. Physics of the Earth and Planetary Interiors, 25, 297356.CrossRefGoogle Scholar
Fretwell, P., Pritchard, H.D., Vaughan, D.G. & 56 others . 2013. Bedmap2: improved ice bed, surface and thickness datasets for Antarctica. Cryosphere, 7, 375393.CrossRefGoogle Scholar
Greve, R. & Blatter, H. 2009. Dynamics of ice sheets and glaciers. Berlin: Springer, 287 pp.CrossRefGoogle Scholar
I-Lotus Corporation Pte . 2008. M12M timing – technical data. Available at: http://www.ilotus.com.sg/sites/all/themes/zeropoint/pdf/m12m/M12M%20Timing%20-%20TDS%20(Ver%201.0.0).pdf Google Scholar
Kiernan, R. 2001. Ice sheet surface velocities along the Lambert Glacier basin traverse route. Hobart, TAS: Antarctic Cooperative Research Centre and Australian Antarctic Division, 152 pp.Google Scholar
Manson, R., Coleman, R., Morgan, P. & King, M. 2000. Ice velocities of the Lambert Glacier from static GPS observations. Earth Planets and Space, 52, 10311036.CrossRefGoogle Scholar
Matsuoka, K., Rasmussen, A. & Power, D. 2011. GPS-measured ice velocities and strain data from the Ross and Amundsen Sea ice flow divide, West Antarctica. Boulder, CO: National Snow and Ice Data Center.Google Scholar
Ren, J.W., Allison, I., Xiao, C.D. & Qin, D.H. 2002. Mass balance of the Lambert Glacier basin, East Antarctica. Science in China Series D - Earth Sciences, 45, 842850.CrossRefGoogle Scholar
Rignot, E., Mouginot, J. & Scheuchl, B. 2011. Ice flow of the Antarctic ice sheet. Science, 333, 14271430.CrossRefGoogle ScholarPubMed
Testut, L., Hurd, R., Coleman, R., Rémy, F. & Legrésy, B. 2003. Comparison between computed balance velocities and GPS measurements in the Lambert Glacier basin, East Antarctica. Annals of Glaciology, 37, 337343.CrossRefGoogle Scholar
Trimble Navigation 2011. Data sheet – Lassen iQ GPS module. Available at: http://trl.trimble.com/docushare/dsweb/Get/Document-184028/LasseniQ_DS.pdf Google Scholar
Van de Wal, R.S.W., Boot, W., van den Broeke, M.R., Smeets, C.J.P.P., Reijmer, C.H., Donker, J.J.A. & Oerlemans, J. 2008. Large and rapid melt-induced velocity changes in the ablation zone of the Greenland ice sheet. Science, 321, 111113.CrossRefGoogle ScholarPubMed
Fudge, T.J., Steig, E.J., Markle, B.R. & WAIS Divide Project Members . 2013. Onset of deglacial warming in West Antarctica driven by local orbital forcing. Nature, 500, 10.1038/nature12376.CrossRefGoogle Scholar
Wessel, P. & Smith, W.H.F. 1991. Free software helps map and display data. Eos, Transactions American Geophysical Union, 72, 10.1029/90EO00319.CrossRefGoogle Scholar
Zandbergen, P.A. 2008. Positional accuracy of spatial data: non-normal distributions and a critique of the national standard for spatial data accuracy. Transactions in GIS, 12, 103130.CrossRefGoogle Scholar
Zhang, S.K., Dongchen, E., Wang, Z.M., Li, Y.S., Jin, B. & Zhou, C.X. 2008. Ice velocity from static GPS observations along the transect from Zhongshan station to Dome A, East Antarctica. Annals of Glaciology, 48, 113118.Google Scholar

An Supplementary Material

Supplementary Material

[Opens in a new window]
PDF 842 KB

Full text views

Full text views reflects PDF downloads, PDFs sent to Google Drive, Dropbox and Kindle and HTML full text views.

Total number of HTML views: 9
Total number of PDF views: 68 *
View data table for this chart

* Views captured on Cambridge Core between September 2016 - 3rd December 2020. This data will be updated every 24 hours.

Hostname: page-component-6c64649b67-89x5w Total loading time: 0.297 Render date: 2020-12-03T10:49:52.972Z Query parameters: { "hasAccess": "0", "openAccess": "0", "isLogged": "0", "lang": "en" } Feature Flags last update: Thu Dec 03 2020 10:15:08 GMT+0000 (Coordinated Universal Time) Feature Flags: { "metrics": true, "metricsAbstractViews": false, "peerReview": true, "crossMark": true, "comments": true, "relatedCommentaries": true, "subject": true, "clr": false, "languageSwitch": true }

Send article to Kindle

To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Antarctic ice velocities from GPS locations logged by seismic stations
Available formats
×

Send article to Dropbox

To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

Antarctic ice velocities from GPS locations logged by seismic stations
Available formats
×

Send article to Google Drive

To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

Antarctic ice velocities from GPS locations logged by seismic stations
Available formats
×
×

Reply to: Submit a response


Your details


Conflicting interests

Do you have any conflicting interests? *