Siple Dome shallow ice cores: a study in coastal dome microclimatology
Ice cores at Siple Dome, West Antarctica, receive the majority of their precipitation from Pacific Ocean moisture sources. Pacific climate patterns, particularly the El Niño–Southern Oscillation (ENSO) and the Southern Annular Mode (SAM), affect local temperature, atmospheric circulation, snow accum...
Published in: | Climate of the Past |
---|---|
Main Authors: | , , |
Format: | Text |
Language: | English |
Published: |
2018
|
Subjects: | |
Online Access: | https://doi.org/10.5194/cp-10-1253-2014 https://cp.copernicus.org/articles/10/1253/2014/ |
id |
ftcopernicus:oai:publications.copernicus.org:cp20070 |
---|---|
record_format |
openpolar |
spelling |
ftcopernicus:oai:publications.copernicus.org:cp20070 2023-05-15T13:54:27+02:00 Siple Dome shallow ice cores: a study in coastal dome microclimatology Jones, T. R. White, J. W. C. Popp, T. 2018-09-27 application/pdf https://doi.org/10.5194/cp-10-1253-2014 https://cp.copernicus.org/articles/10/1253/2014/ eng eng doi:10.5194/cp-10-1253-2014 https://cp.copernicus.org/articles/10/1253/2014/ eISSN: 1814-9332 Text 2018 ftcopernicus https://doi.org/10.5194/cp-10-1253-2014 2020-07-20T16:25:02Z Ice cores at Siple Dome, West Antarctica, receive the majority of their precipitation from Pacific Ocean moisture sources. Pacific climate patterns, particularly the El Niño–Southern Oscillation (ENSO) and the Southern Annular Mode (SAM), affect local temperature, atmospheric circulation, snow accumulation, and water isotope signals at Siple Dome. We examine borehole temperatures, accumulation, and water isotopes from a number of shallow ice cores recovered from a 60 km north–south transect of the dome. The data reveal spatial gradients partly explained by orographic uplift, as well as microclimate effects that are expressed differently on the Pacific and inland flanks. Our analyses suggest that while an ENSO and SAM signal are evident at Siple Dome, differences in microclimate and possible postdepositional movement of snow makes climate reconstruction problematic, a conclusion which should be considered at other West Antarctic coastal dome locations. Text Antarc* Antarctic Antarctica West Antarctica Copernicus Publications: E-Journals Antarctic Dome The ENVELOPE(166.000,166.000,-85.367,-85.367) Pacific Siple ENVELOPE(-83.917,-83.917,-75.917,-75.917) Siple Dome ENVELOPE(-148.833,-148.833,-81.667,-81.667) West Antarctica Climate of the Past 10 3 1253 1267 |
institution |
Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
Ice cores at Siple Dome, West Antarctica, receive the majority of their precipitation from Pacific Ocean moisture sources. Pacific climate patterns, particularly the El Niño–Southern Oscillation (ENSO) and the Southern Annular Mode (SAM), affect local temperature, atmospheric circulation, snow accumulation, and water isotope signals at Siple Dome. We examine borehole temperatures, accumulation, and water isotopes from a number of shallow ice cores recovered from a 60 km north–south transect of the dome. The data reveal spatial gradients partly explained by orographic uplift, as well as microclimate effects that are expressed differently on the Pacific and inland flanks. Our analyses suggest that while an ENSO and SAM signal are evident at Siple Dome, differences in microclimate and possible postdepositional movement of snow makes climate reconstruction problematic, a conclusion which should be considered at other West Antarctic coastal dome locations. |
format |
Text |
author |
Jones, T. R. White, J. W. C. Popp, T. |
spellingShingle |
Jones, T. R. White, J. W. C. Popp, T. Siple Dome shallow ice cores: a study in coastal dome microclimatology |
author_facet |
Jones, T. R. White, J. W. C. Popp, T. |
author_sort |
Jones, T. R. |
title |
Siple Dome shallow ice cores: a study in coastal dome microclimatology |
title_short |
Siple Dome shallow ice cores: a study in coastal dome microclimatology |
title_full |
Siple Dome shallow ice cores: a study in coastal dome microclimatology |
title_fullStr |
Siple Dome shallow ice cores: a study in coastal dome microclimatology |
title_full_unstemmed |
Siple Dome shallow ice cores: a study in coastal dome microclimatology |
title_sort |
siple dome shallow ice cores: a study in coastal dome microclimatology |
publishDate |
2018 |
url |
https://doi.org/10.5194/cp-10-1253-2014 https://cp.copernicus.org/articles/10/1253/2014/ |
long_lat |
ENVELOPE(166.000,166.000,-85.367,-85.367) ENVELOPE(-83.917,-83.917,-75.917,-75.917) ENVELOPE(-148.833,-148.833,-81.667,-81.667) |
geographic |
Antarctic Dome The Pacific Siple Siple Dome West Antarctica |
geographic_facet |
Antarctic Dome The Pacific Siple Siple Dome West Antarctica |
genre |
Antarc* Antarctic Antarctica West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica West Antarctica |
op_source |
eISSN: 1814-9332 |
op_relation |
doi:10.5194/cp-10-1253-2014 https://cp.copernicus.org/articles/10/1253/2014/ |
op_doi |
https://doi.org/10.5194/cp-10-1253-2014 |
container_title |
Climate of the Past |
container_volume |
10 |
container_issue |
3 |
container_start_page |
1253 |
op_container_end_page |
1267 |
_version_ |
1766260364337479680 |