Ice shelf density reconstructed from optical televiewer borehole logging
Optical televiewer luminosity logs are compared with densities measured gravimetrically on 520 snow, firn and ice samples from two locations of similar annual temperature (~-14 °C) and contrasting accumulation rates (0.23 and 0.43 m w.e. per year) on the Roi Baudouin Ice Shelf, Antarctica. At the sc...
Published in: | Geophysical Research Letters |
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Online Access: | https://epic.awi.de/id/eprint/34442/ https://epic.awi.de/id/eprint/34442/7/grl51094.pdf https://hdl.handle.net/10013/epic.42690 https://hdl.handle.net/10013/epic.42690.d007 |
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ftawi:oai:epic.awi.de:34442 2023-05-15T13:40:26+02:00 Ice shelf density reconstructed from optical televiewer borehole logging Hubbard, Bryn Tison, Jean-Louis Philippe, Morgane Heene, Billie Pattyn, Frank Malone, Terry Freitag, Johannes 2013-10 application/pdf https://epic.awi.de/id/eprint/34442/ https://epic.awi.de/id/eprint/34442/7/grl51094.pdf https://hdl.handle.net/10013/epic.42690 https://hdl.handle.net/10013/epic.42690.d007 unknown Wiley https://epic.awi.de/id/eprint/34442/7/grl51094.pdf https://hdl.handle.net/10013/epic.42690.d007 Hubbard, B. , Tison, J. L. , Philippe, M. , Heene, B. , Pattyn, F. , Malone, T. and Freitag, J. orcid:0000-0003-2654-9440 (2013) Ice shelf density reconstructed from optical televiewer borehole logging , Geophysical Research Letters, 40 (22), pp. 5882-5887 . doi:10.1002/2013GL058023 <https://doi.org/10.1002/2013GL058023> , hdl:10013/epic.42690 EPIC3Geophysical Research Letters, Wiley, 40(22), pp. 5882-5887, ISSN: 0094-8276 Article isiRev 2013 ftawi https://doi.org/10.1002/2013GL058023 2021-12-24T15:39:10Z Optical televiewer luminosity logs are compared with densities measured gravimetrically on 520 snow, firn and ice samples from two locations of similar annual temperature (~-14 °C) and contrasting accumulation rates (0.23 and 0.43 m w.e. per year) on the Roi Baudouin Ice Shelf, Antarctica. At the scale of ≥10-1 m, an inverse exponential relationship (R2 = 0.96) is recorded between density and luminosity, indicating (i) that OPTV luminosity provides an effective proxy for density at such ice shelves, and (ii) that densities may be reconstructed from boreholes drilled elsewhere by hot water without the need for core material. Our analysis also suggests that this relationship may hold for newly-formed ice as well as for snow and firn. At the scale of ≤10-1 m, both luminosity and density show similar patterns, but precise correlation is confounded by detailed differences between the two records. Article in Journal/Newspaper Antarc* Antarctica Ice Shelf Ice Shelves Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Roi Baudouin ENVELOPE(24.461,24.461,-70.438,-70.438) Geophysical Research Letters 40 22 5882 5887 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Optical televiewer luminosity logs are compared with densities measured gravimetrically on 520 snow, firn and ice samples from two locations of similar annual temperature (~-14 °C) and contrasting accumulation rates (0.23 and 0.43 m w.e. per year) on the Roi Baudouin Ice Shelf, Antarctica. At the scale of ≥10-1 m, an inverse exponential relationship (R2 = 0.96) is recorded between density and luminosity, indicating (i) that OPTV luminosity provides an effective proxy for density at such ice shelves, and (ii) that densities may be reconstructed from boreholes drilled elsewhere by hot water without the need for core material. Our analysis also suggests that this relationship may hold for newly-formed ice as well as for snow and firn. At the scale of ≤10-1 m, both luminosity and density show similar patterns, but precise correlation is confounded by detailed differences between the two records. |
format |
Article in Journal/Newspaper |
author |
Hubbard, Bryn Tison, Jean-Louis Philippe, Morgane Heene, Billie Pattyn, Frank Malone, Terry Freitag, Johannes |
spellingShingle |
Hubbard, Bryn Tison, Jean-Louis Philippe, Morgane Heene, Billie Pattyn, Frank Malone, Terry Freitag, Johannes Ice shelf density reconstructed from optical televiewer borehole logging |
author_facet |
Hubbard, Bryn Tison, Jean-Louis Philippe, Morgane Heene, Billie Pattyn, Frank Malone, Terry Freitag, Johannes |
author_sort |
Hubbard, Bryn |
title |
Ice shelf density reconstructed from optical televiewer borehole logging |
title_short |
Ice shelf density reconstructed from optical televiewer borehole logging |
title_full |
Ice shelf density reconstructed from optical televiewer borehole logging |
title_fullStr |
Ice shelf density reconstructed from optical televiewer borehole logging |
title_full_unstemmed |
Ice shelf density reconstructed from optical televiewer borehole logging |
title_sort |
ice shelf density reconstructed from optical televiewer borehole logging |
publisher |
Wiley |
publishDate |
2013 |
url |
https://epic.awi.de/id/eprint/34442/ https://epic.awi.de/id/eprint/34442/7/grl51094.pdf https://hdl.handle.net/10013/epic.42690 https://hdl.handle.net/10013/epic.42690.d007 |
long_lat |
ENVELOPE(24.461,24.461,-70.438,-70.438) |
geographic |
Roi Baudouin |
geographic_facet |
Roi Baudouin |
genre |
Antarc* Antarctica Ice Shelf Ice Shelves |
genre_facet |
Antarc* Antarctica Ice Shelf Ice Shelves |
op_source |
EPIC3Geophysical Research Letters, Wiley, 40(22), pp. 5882-5887, ISSN: 0094-8276 |
op_relation |
https://epic.awi.de/id/eprint/34442/7/grl51094.pdf https://hdl.handle.net/10013/epic.42690.d007 Hubbard, B. , Tison, J. L. , Philippe, M. , Heene, B. , Pattyn, F. , Malone, T. and Freitag, J. orcid:0000-0003-2654-9440 (2013) Ice shelf density reconstructed from optical televiewer borehole logging , Geophysical Research Letters, 40 (22), pp. 5882-5887 . doi:10.1002/2013GL058023 <https://doi.org/10.1002/2013GL058023> , hdl:10013/epic.42690 |
op_doi |
https://doi.org/10.1002/2013GL058023 |
container_title |
Geophysical Research Letters |
container_volume |
40 |
container_issue |
22 |
container_start_page |
5882 |
op_container_end_page |
5887 |
_version_ |
1766133763808428032 |