Firn Air Isotope and Temperature Measurements from Siple Dome and South Pole
Abstract: This data set includes d15N, d18O/2, dO2/N2/4, d40Ar/4, d38/Ar/2, d84Kr/48, and d132Xe/96 values for air drawn from the top 15 to 50 m of firn at the South Pole (summer and winter 1998) and a site at Siple Dome (summers 1996 and 1998). Data also include related firn temperature measurement...
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IEDA: US Antarctic Program Data Center
2001
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dataone:http://get.iedadata.org/metadata/iso/609098 2024-06-03T18:46:24+00:00 Firn Air Isotope and Temperature Measurements from Siple Dome and South Pole Severinghaus, Jeffrey P. Battle, Mark Grachev, A. BEGINDATE: 1998-01-14T00:00:00Z ENDDATE: 1998-07-28T00:00:00Z 2001-01-01T00:00:00Z http://get.iedadata.org/metadata/iso/609098 unknown IEDA: US Antarctic Program Data Center Isotope Temperature Antarctic Glaciology Chemistry:Ice Glaciology Paleoclimate Antarctica Snow/Ice Atmosphere Cryosphere Geochemistry Siple Dome South Pole US Antarctic Program Data Center (USAP-DC) Dataset 2001 dataone:urn:node:IEDA_USAP 2024-06-03T18:11:58Z Abstract: This data set includes d15N, d18O/2, dO2/N2/4, d40Ar/4, d38/Ar/2, d84Kr/48, and d132Xe/96 values for air drawn from the top 15 to 50 m of firn at the South Pole (summer and winter 1998) and a site at Siple Dome (summers 1996 and 1998). Data also include related firn temperature measurements. The objective of this research was to better understand thermal fractionation processes affecting records of atmospheric history from firn and ice core gases. Recent work (e.g., Severinghaus and Brook, 1999) has exploited trapped air in ice and deep firn as a record of past atmospheric composition and climate change. Interpretation of these paleoclimate archives is complicated by artifacts of thermal diffusion, a process in which heavier gases migrate down temperature gradients toward colder regions in the firn. Seasonal temperature change at the snow surface creates strong temperature gradients in the top few meters of the firn, which cause isotopic fractionation of firn gases. A specific goal of this research is to identify any long-term effects of seasonal temperature fluctuations on firn air isotopic anomalies. Dataset Antarc* Antarctic Antarctica ice core South pole South pole IEDA: US Antarctic Program Data Center (via DataONE) Antarctic South Pole Siple ENVELOPE(-83.917,-83.917,-75.917,-75.917) Siple Dome ENVELOPE(-148.833,-148.833,-81.667,-81.667) |
institution |
Open Polar |
collection |
IEDA: US Antarctic Program Data Center (via DataONE) |
op_collection_id |
dataone:urn:node:IEDA_USAP |
language |
unknown |
topic |
Isotope Temperature Antarctic Glaciology Chemistry:Ice Glaciology Paleoclimate Antarctica Snow/Ice Atmosphere Cryosphere Geochemistry Siple Dome South Pole US Antarctic Program Data Center (USAP-DC) |
spellingShingle |
Isotope Temperature Antarctic Glaciology Chemistry:Ice Glaciology Paleoclimate Antarctica Snow/Ice Atmosphere Cryosphere Geochemistry Siple Dome South Pole US Antarctic Program Data Center (USAP-DC) Severinghaus, Jeffrey P. Battle, Mark Grachev, A. Firn Air Isotope and Temperature Measurements from Siple Dome and South Pole |
topic_facet |
Isotope Temperature Antarctic Glaciology Chemistry:Ice Glaciology Paleoclimate Antarctica Snow/Ice Atmosphere Cryosphere Geochemistry Siple Dome South Pole US Antarctic Program Data Center (USAP-DC) |
description |
Abstract: This data set includes d15N, d18O/2, dO2/N2/4, d40Ar/4, d38/Ar/2, d84Kr/48, and d132Xe/96 values for air drawn from the top 15 to 50 m of firn at the South Pole (summer and winter 1998) and a site at Siple Dome (summers 1996 and 1998). Data also include related firn temperature measurements. The objective of this research was to better understand thermal fractionation processes affecting records of atmospheric history from firn and ice core gases. Recent work (e.g., Severinghaus and Brook, 1999) has exploited trapped air in ice and deep firn as a record of past atmospheric composition and climate change. Interpretation of these paleoclimate archives is complicated by artifacts of thermal diffusion, a process in which heavier gases migrate down temperature gradients toward colder regions in the firn. Seasonal temperature change at the snow surface creates strong temperature gradients in the top few meters of the firn, which cause isotopic fractionation of firn gases. A specific goal of this research is to identify any long-term effects of seasonal temperature fluctuations on firn air isotopic anomalies. |
format |
Dataset |
author |
Severinghaus, Jeffrey P. Battle, Mark Grachev, A. |
author_facet |
Severinghaus, Jeffrey P. Battle, Mark Grachev, A. |
author_sort |
Severinghaus, Jeffrey P. |
title |
Firn Air Isotope and Temperature Measurements from Siple Dome and South Pole |
title_short |
Firn Air Isotope and Temperature Measurements from Siple Dome and South Pole |
title_full |
Firn Air Isotope and Temperature Measurements from Siple Dome and South Pole |
title_fullStr |
Firn Air Isotope and Temperature Measurements from Siple Dome and South Pole |
title_full_unstemmed |
Firn Air Isotope and Temperature Measurements from Siple Dome and South Pole |
title_sort |
firn air isotope and temperature measurements from siple dome and south pole |
publisher |
IEDA: US Antarctic Program Data Center |
publishDate |
2001 |
url |
http://get.iedadata.org/metadata/iso/609098 |
op_coverage |
BEGINDATE: 1998-01-14T00:00:00Z ENDDATE: 1998-07-28T00:00:00Z |
long_lat |
ENVELOPE(-83.917,-83.917,-75.917,-75.917) ENVELOPE(-148.833,-148.833,-81.667,-81.667) |
geographic |
Antarctic South Pole Siple Siple Dome |
geographic_facet |
Antarctic South Pole Siple Siple Dome |
genre |
Antarc* Antarctic Antarctica ice core South pole South pole |
genre_facet |
Antarc* Antarctic Antarctica ice core South pole South pole |
_version_ |
1800872946058657792 |