noaa-icecore-14828
NGRIP Ice Core 120-11KYrBP Nitrous Oxide Data
Schilt, A.; Baumgartner, M.; Eicher, O.; Chappellaz, J.A.; Schwander, J.; Fischer, H.; Stocker, T.F.
NGRIP Ice Core 120-11KYrBP Nitrous Oxide Data
2013-09-03
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/14828
Investigator
A.
Schilt
Investigator
M.
Baumgartner
Investigator
O.
Eicher
Investigator
J.A.
Chappellaz
Investigator
J.
Schwander
Investigator
H.
Fischer
Investigator
T.F.
Stocker
earth science
paleoclimate
ice cores
notes,null,null,null,null,ice cores,null,null,C,null
earth science
paleoclimate
climate forcing|ice cores
nitrous oxide,bulk atmosphere,null,parts per billion,null,climate forcing|ice cores,null,null,N,null
earth science
paleoclimate
climate forcing|ice cores
nitrous oxide,bulk atmosphere,one standard error,parts per billion,null,climate forcing|ice cores,null,null,N,null
earth science
paleoclimate
ice cores
depth,null,null,meter,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
gas age,null,null,calendar year before present,null,ice cores,null,null,N,null
earth science
paleoclimate
ice core
atmospheric gas
geoscientificInformation
119555 cal yr BP
11067 cal yr BP
Complete
75.1
75.1
-42.33
-42.33
2917
2917
Continent
North America
Greenland
NGRIP>LATITUDE 75.1>LONGITUDE -42.33
None
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English
DOC/NOAA/NESDIS/NCEI
National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
https://www.ncdc.noaa.gov/data-access/paleoclimatology-data
DATA Center Contact
Bruce
Bauer
bruce.a.bauer@noaa.gov
paleo@noaa.gov
303-497-6280
303-497-6513
325 Broadway, E/NE31
Boulder
CO
80305-3328
USA
online
ASCII
Schilt, A., M. Baumgartner, J. Schwander, D. Buiron,
E. Capron, J. Chappellaz, L. Loulergue, S. Schüpbach,
R. Spahni, H. Fischer, and T.F. Stocker. 2010.
Atmospheric nitrous oxide during the last 140,000 years.
Earth and Planetary Science Letters, Vol. 300, pp. 33-43.
doi:10.1016/j.epsl.2010.09.027
Adrian Schilt, Matthias Baumgartner, Olivier Eicher, Jérôme Chappellaz, Jakob Schwander, Hubertus Fischer, Thomas F. Stocker. 2013. The response of atmospheric nitrous oxide to climate variations during the last glacial period. Geophysical Research Letters, Vol. 40, Issue 9, pp. 1888-1893. DOI: 10.1002/grl.50380
Flückiger, Jacqueline, Thomas Blunier, Bernhard Stauffer, Jérôme Chappellaz, Renato Spahni, Kenji Kawamura, Jakob Schwander, Thomas F. Stocker and Dorthe Dahl-Jensen. 2004. N2O and CH4 variations during the last glacial epoch: Insight into global processes. Global Biogeochemical Cycles, 18(1). DOI: 10.1029/2003GB002122
Reconstructions of past atmospheric concentrations of greenhouse gases
provide unique insight into the biogeochemical cycles and the past
radiative forcing in the Earth's climate system. We present new
measurements of atmospheric nitrous oxide along the ice cores of the
North Greenland Ice Core Project and Talos Dome sites. Using records
of several other ice cores, we are now able to establish the first
complete composite nitrous oxide record reaching back to the beginning
of the previous interglacial about 140,000 yr ago. On the basis of
such composite ice core records, we further calculate the radiative
forcing of the three most important greenhouse gases carbon dioxide,
methane and nitrous oxide during more than a full glacial-interglacial
cycle. Nitrous oxide varies in line with climate, reaching very low
concentrations of about 200 parts per billion by volume during Marine
Isotope Stages 4 and 2, and showing substantial responses to millennial
time scale climate variations during the last glacial. A large part
of these millennial time scale variations can be explained by parallel
changes in the sources of methane and nitrous oxide. However, as
revealed by high-resolution measurements covering the Dansgaard/Oeschger
events 17 to 15, the evolution of these two greenhouse gases may be
decoupled on the centennial time scale. Carbon dioxide and methane
concentrations do not reach interglacial levels in the course of
millennial time scale climate variations during the last glacial.
In contrast, nitrous oxide often reaches interglacial concentrations
in response to both, glacial terminations and Dansgaard/Oeschger events.
This indicates, from a biogeochemical point of view, similar drivers
in both temporal cases. While carbon dioxide and methane concentrations
are more strongly controlled by climate changes in high latitudes,
nitrous oxide emissions changes may mainly stem from the ocean and/or
from soils located at low latitudes. Accordingly, we speculate that
high latitudes could play the leading role to trigger glacial
terminations.
STUDY NOTES: Nitrous Oxide (N2O) record from the North Greenland Ice Sheet. Age model is AICC2012_official gas age scale according to Bazin et al. 2013 and Veres et al. 2013
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/summit/ngrip/gases/ngrip2013n2o.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11