noaa-ocean-14328
Southern Ocean Productivity Data Over the Past Million Years
Jaccard, S.L.; Hayes, C.T.; MartÃnez-Garcia, A.; Hodell, D.A.; Anderson, R.F.; Sigman, D.M.; Haug, G.H.
Southern Ocean Productivity Data Over the Past Million Years
2013-05-01
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/14328
Investigator
S.L.
Jaccard
Investigator
C.T.
Hayes
Investigator
A.
MartÃnez-Garcia
Investigator
D.A.
Hodell
Investigator
R.F.
Anderson
Investigator
D.M.
Sigman
Investigator
G.H.
Haug
earth science
paleoclimate
paleoceanography
biogenic silica,sediment,null,gram per square centimeter per kiloyear,null,paleoceanography,null,null,N,mass accumulation rate
earth science
paleoclimate
paleoceanography
depth,null,null,meter,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
age,null,null,calendar kiloyear before present,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
calcium carbonate,sediment,null,gram per square centimeter per kiloyear,null,paleoceanography,null,null,N,mass accumulation rate
earth science
paleoclimate
paleoceanography
calcium/iron,sediment,null,dimensionless,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
barium/iron,sediment,null,dimensionless,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
barium,sediment,null,milligram per square centimeter per kiloyear,null,paleoceanography,null,null,N,biogenic barium; mass accumulation rate
earth science
paleoclimate
paleoceanography
230Th excess,sediment,null,disintegration per minute per gram,null,paleoceanography,corrected,null,N,corrected for detrital 230Th; ingrown 230Th and decay of excess 230Th
earth science
paleoclimate
paleoceanography
chlorine,sediment,null,microgram per square centimeter per kiloyear,null,paleoceanography,null,null,N,mass accumulation rate
earth science
paleoclimate
paleocean
geochemistry
earth science
paleoclimate
paleocean
radiogenic isotope
earth science
paleoclimate
paleocean
physical properties
geoscientificInformation
994991 cal yr BP
1460 cal yr BP
Complete
-53.18035
-53.18035
5.130333
5.130333
-2807
-2807
Ocean
Atlantic Ocean
South Atlantic Ocean
ODP1094>LATITUDE -53.18035>LONGITUDE 5.130333
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
Jaccard, S.L., Hayes, C.T., Martinez-Garcia, A., Hodell, D.A., Anderson, R.F., Sigman, D.M., Haug, G.H. 2013. Two modes of change in Southern Ocean ocean productivity over the past million years. Science, 339, 1419-1423. DOI:10.1126/science.1227545
Export of organic carbon from surface waters of the Antarctic Zone of the Southern Ocean decreased during the last ice age, coinciding with declining atmospheric carbon dioxide (CO2) concentrations, signaling reduced exchange of CO2 between the ocean interior and the atmosphere. In contrast, in the Subantarctic Zone, export production increased into ice ages coinciding with rising dust fluxes, thus suggesting iron fertilization of subantarctic phytoplankton. Here, a new high-resolution productivity record from the Antarctic Zone is compiled with parallel subantarctic data over the past million years. Together, they fit the view that the combination of these two modes of Southern Ocean change determines the temporal structure of the glacial-interglacial atmospheric CO2 record, including during the interval of "lukewarm" interglacials between 450 and 800 thousand years ago.
STUDY NOTES: The stratigraphy is based on planktonic foraminifera d18O correlation to the EPICA Dome C ice core age scale assuming an in-phase relationship.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/jaccard2013/jaccard2013-230Th-MAR.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/jaccard2013/jaccard2013-XRF.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11