The 1500m South Pole Ice Core: Recovering a 40 Ka Environmental Record
Supported by the US National Science Foundation, a new 1500 m, approximately 40 ka old ice core will be recovered from South Pole during the 2014/15 and 2015/16 austral summer seasons using the new US Intermediate Depth Drill. The combination of low temperatures, relatively high accumulation rates a...
Main Authors: | , , , , , , |
---|---|
Format: | Other/Unknown Material |
Language: | unknown |
Published: |
2014
|
Subjects: | |
Online Access: | http://hdl.handle.net/2060/20150001453 |
id |
ftnasantrs:oai:casi.ntrs.nasa.gov:20150001453 |
---|---|
record_format |
openpolar |
spelling |
ftnasantrs:oai:casi.ntrs.nasa.gov:20150001453 2023-05-15T13:59:55+02:00 The 1500m South Pole Ice Core: Recovering a 40 Ka Environmental Record Casey, Kimberly Ann Neumann, T. A. Steig, E. J. Cavitte, M. G. P. Blankenship, D. D. Neumann, Thomas Allen Fudge, T. J. Unclassified, Unlimited, Publicly available October 30, 2014 application/pdf http://hdl.handle.net/2060/20150001453 unknown Document ID: 20150001453 http://hdl.handle.net/2060/20150001453 Copyright, Distribution as joint owner in the copyright CASI Geophysics GSFC-E-DAA-TN19584 2014 ftnasantrs 2019-07-21T06:12:04Z Supported by the US National Science Foundation, a new 1500 m, approximately 40 ka old ice core will be recovered from South Pole during the 2014/15 and 2015/16 austral summer seasons using the new US Intermediate Depth Drill. The combination of low temperatures, relatively high accumulation rates and low impurity concentrations at South Pole will yield detailed records of ice chemistry and trace atmospheric gases. The South Pole ice core will provide a climate history record of a unique area of the East Antarctic plateau that is partly influenced by weather systems that cross the West Antarctic ice sheet. The ice at South Pole flows at approximately 10m a(exp-1) and the South Pole ice-core site is a significant distance from an ice divide. Therefore, ice recovered at depth originated progressively farther upstream of the coring site. New ground-penetrating radar collected over the drill site location shows no anthropogenic influence over the past approximately 50 years or upper 15 m. Depth-age scale modeling results show consistent and plausible annual-layer thicknesses and accumulation rate histories, indicating that no significant stratigraphic disturbances exist in the upper 1500m near the ice-core drill site. Other/Unknown Material Antarc* Antarctic ice core Ice Sheet South pole South pole NASA Technical Reports Server (NTRS) Antarctic Austral New Ground ENVELOPE(-55.215,-55.215,49.567,49.567) South Pole West Antarctic Ice Sheet |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
Geophysics |
spellingShingle |
Geophysics Casey, Kimberly Ann Neumann, T. A. Steig, E. J. Cavitte, M. G. P. Blankenship, D. D. Neumann, Thomas Allen Fudge, T. J. The 1500m South Pole Ice Core: Recovering a 40 Ka Environmental Record |
topic_facet |
Geophysics |
description |
Supported by the US National Science Foundation, a new 1500 m, approximately 40 ka old ice core will be recovered from South Pole during the 2014/15 and 2015/16 austral summer seasons using the new US Intermediate Depth Drill. The combination of low temperatures, relatively high accumulation rates and low impurity concentrations at South Pole will yield detailed records of ice chemistry and trace atmospheric gases. The South Pole ice core will provide a climate history record of a unique area of the East Antarctic plateau that is partly influenced by weather systems that cross the West Antarctic ice sheet. The ice at South Pole flows at approximately 10m a(exp-1) and the South Pole ice-core site is a significant distance from an ice divide. Therefore, ice recovered at depth originated progressively farther upstream of the coring site. New ground-penetrating radar collected over the drill site location shows no anthropogenic influence over the past approximately 50 years or upper 15 m. Depth-age scale modeling results show consistent and plausible annual-layer thicknesses and accumulation rate histories, indicating that no significant stratigraphic disturbances exist in the upper 1500m near the ice-core drill site. |
format |
Other/Unknown Material |
author |
Casey, Kimberly Ann Neumann, T. A. Steig, E. J. Cavitte, M. G. P. Blankenship, D. D. Neumann, Thomas Allen Fudge, T. J. |
author_facet |
Casey, Kimberly Ann Neumann, T. A. Steig, E. J. Cavitte, M. G. P. Blankenship, D. D. Neumann, Thomas Allen Fudge, T. J. |
author_sort |
Casey, Kimberly Ann |
title |
The 1500m South Pole Ice Core: Recovering a 40 Ka Environmental Record |
title_short |
The 1500m South Pole Ice Core: Recovering a 40 Ka Environmental Record |
title_full |
The 1500m South Pole Ice Core: Recovering a 40 Ka Environmental Record |
title_fullStr |
The 1500m South Pole Ice Core: Recovering a 40 Ka Environmental Record |
title_full_unstemmed |
The 1500m South Pole Ice Core: Recovering a 40 Ka Environmental Record |
title_sort |
1500m south pole ice core: recovering a 40 ka environmental record |
publishDate |
2014 |
url |
http://hdl.handle.net/2060/20150001453 |
op_coverage |
Unclassified, Unlimited, Publicly available |
long_lat |
ENVELOPE(-55.215,-55.215,49.567,49.567) |
geographic |
Antarctic Austral New Ground South Pole West Antarctic Ice Sheet |
geographic_facet |
Antarctic Austral New Ground South Pole West Antarctic Ice Sheet |
genre |
Antarc* Antarctic ice core Ice Sheet South pole South pole |
genre_facet |
Antarc* Antarctic ice core Ice Sheet South pole South pole |
op_source |
CASI |
op_relation |
Document ID: 20150001453 http://hdl.handle.net/2060/20150001453 |
op_rights |
Copyright, Distribution as joint owner in the copyright |
_version_ |
1766268839833632768 |