Data

Totten Glacier Ice Shelf cavity bathymetry

Australian Ocean Data Network
Greenbaum, J.S., Blankenship, D.D., Young, D.A., Richter, T.G., Roberts, J.L., Aitken, A.R., Legresy, B., Schroeder, D.M., Warner, R., Van Ommen, T., Siegert, M.J. ; GREENBAUM, JAMIN S. ; BLANKENSHIP, DONALD D. ; YOUNG, DUNCAN A. ; RICHTER, THOMAS G. ; ROBERTS, JASON LEIGH ; AITKEN, ALAN R.A. ; LEGRESY, BENOIT ; SCHROEDER, DUSTIN M. ; WARNER, ROLAND ; VAN OMMEN, TAS ; SIEGERT, MARTIN J.
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=Dataset DOI&rft.title=Totten Glacier Ice Shelf cavity bathymetry&rft.identifier=Dataset DOI&rft.publisher=Australian Antarctic Data Centre&rft.description=This is a derived product containing two products blended together that describes the elevation of the seafloor beneath and out to approximately seaward of the Totten Glacier Ice Shelf cavity as well as the elevation of the ice bottom beneath the ice sheet immediately sounding the ice shelf cavity. The seafloor was inferred by inverting airborne gravity observations; the terrain beneath grounded ice was observed with airborne ice sounding radar measurements. The two products were blended along the grounding line observed with satellite observations [Rignot, E., Mouginot, J. and Scheuchl, B. Antarctic grounding line mapping from differential satellite radar interferometry. Geophys. Res. Lett. 38, L10504 (2011)]. We have provided a text file that contains three columns that may be used to produce a gridded bathymetry of the Totten Glacier Ice Shelf and surrounding area with a cell size of 1-km. The first two columns contain grid coordinates using the Polar Stereographic projection based on WGS84 with true scale at 71 degrees S. The third column contains the vertical coordinate representing the seafloor beneath and the ice-bottom elevation around the Totten Glacier Ice Shelf cavity. The center of the region is located near 115E and 67S and spans an area about 217 km by 131 km. The data are described in detail in the publication and supplementary materials that can be found by following this link: http://www.nature.com/ngeo/journal/v8/n4/abs/ngeo2388.html#supplementary-informationProgress Code: completed&rft.creator=Greenbaum, J.S., Blankenship, D.D., Young, D.A., Richter, T.G., Roberts, J.L., Aitken, A.R., Legresy, B., Schroeder, D.M., Warner, R., Van Ommen, T., Siegert, M.J. &rft.creator=GREENBAUM, JAMIN S. &rft.creator=BLANKENSHIP, DONALD D. &rft.creator=YOUNG, DUNCAN A. &rft.creator=RICHTER, THOMAS G. &rft.creator=ROBERTS, JASON LEIGH &rft.creator=AITKEN, ALAN R.A. &rft.creator=LEGRESY, BENOIT &rft.creator=SCHROEDER, DUSTIN M. &rft.creator=WARNER, ROLAND &rft.creator=VAN OMMEN, TAS &rft.creator=SIEGERT, MARTIN J. &rft.date=2016&rft.coverage=westlimit=112.5; southlimit=-68; eastlimit=118; northlimit=-66&rft.coverage=westlimit=112.5; southlimit=-68; eastlimit=118; northlimit=-66&rft_rights=This metadata record is publicly available.&rft_rights=These data are publicly available for download from the provided URL.&rft_rights= https://creativecommons.org/licenses/by/4.0/legalcode&rft_rights=This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4077_Totten_Cavity_Bathymetry when using these data. http://creativecommons.org/licenses/by/4.0/).&rft_rights=Portable Network Graphic&rft_rights=https://i.creativecommons.org/l/by/3.0/88x31.png&rft_rights=Creative Commons by Attribution logo&rft_rights=Attribution 4.0 International (CC BY 4.0)&rft_rights=Legal code for Creative Commons by Attribution 4.0 International license&rft_rights=Attribution 4.0 International (CC BY 4.0)&rft_rights= https://creativecommons.org/licenses/by/4.0/legalcode&rft.type=dataset&rft.language=English Access the data
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This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/).

Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4077_Totten_Cavity_Bathymetry when using these data.
http://creativecommons.org/licenses/by/4.0/).

Attribution 4.0 International (CC BY 4.0)

https://creativecommons.org/licenses/by/4.0/legalcode

This metadata record is publicly available.

These data are publicly available for download from the provided URL.

Portable Network Graphic

https://i.creativecommons.org/l/by/3.0/88x31.png

Creative Commons by Attribution logo

Attribution 4.0 International (CC BY 4.0)

Legal code for Creative Commons by Attribution 4.0 International license

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Brief description

This is a derived product containing two products blended together that describes the elevation of the seafloor beneath and out to approximately seaward of the Totten Glacier Ice Shelf cavity as well as the elevation of the ice bottom beneath the ice sheet immediately sounding the ice shelf cavity. The seafloor was inferred by inverting airborne gravity observations; the terrain beneath grounded ice was observed with airborne ice sounding radar measurements. The two products were blended along the grounding line observed with satellite observations [Rignot, E., Mouginot, J. and Scheuchl, B. Antarctic grounding line mapping from differential satellite radar interferometry. Geophys. Res. Lett. 38, L10504 (2011)].

We have provided a text file that contains three columns that may be used to produce a gridded bathymetry of the Totten Glacier Ice Shelf and surrounding area with a cell size of 1-km. The first two columns contain grid coordinates using the Polar Stereographic projection based on WGS84 with true scale at 71 degrees S. The third column contains the vertical coordinate representing the seafloor beneath and the ice-bottom elevation around the Totten Glacier Ice Shelf cavity. The center of the region is located near 115E and 67S and spans an area about 217 km by 131 km.

The data are described in detail in the publication and supplementary materials that can be found by following this link:
http://www.nature.com/ngeo/journal/v8/n4/abs/ngeo2388.html#supplementary-information

Lineage

Progress Code: completed

Data time period: 2008-11-01 to 2012-01-31

118,-66 118,-68 112.5,-68 112.5,-66 118,-66

115.25,-67

text: westlimit=112.5; southlimit=-68; eastlimit=118; northlimit=-66

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