noaa-ocean-5867
Barron et al. 2003 N. Coastal California High Res. Holocene/Pleistocene Oceanographic Data
Barron, J.A.; Heusser, L.E.; Herbert, T.D.; Lyle, M.
Barron et al. 2003 N. Coastal California High Res. Holocene/Pleistocene Oceanographic Data
2003-01-15
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/5867
Investigator
J.A.
Barron
Investigator
L.E.
Heusser
Investigator
T.D.
Herbert
Investigator
M.
Lyle
earth science
paleoclimate
paleoceanography
alkenone,null,null,count,null,paleoceanography,null,null,N,C37:2+C37:3+C37:4
earth science
paleoclimate
paleoceanography
age,null,null,calendar year before present,null,paleoceanography,null,null,N,null
earth science
paleoclimate
climate reconstructions|paleoceanography
sea surface temperature,alkenone unsaturation index,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
calcium carbonate,sediment,null,weight percent,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
depth,null,null,centimeter,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleocean
biomarkers
earth science
paleoclimate
paleocean
reconstruction
earth science
paleoclimate
paleocean
age control
geoscientificInformation
13422 cal yr BP
157 cal yr BP
Complete
41.68194
41.68194
-124.93
-124.93
-980
-980
Ocean
Pacific Ocean
Eastern Pacific Ocean
ODP 1019>LATITUDE 41.68194>LONGITUDE -124.93
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
Barron, J.A., L. Heusser, T. Herbert, and M. Lyle. 2003. High Resolution Climatic Evolution of Coastal Northern California During the Past 16,000 Years. Paleoceanography, 18(1), 1020. doi: 10.1029/2002PA000768
Holocene and latest Pleistocene oceanographic conditions and the coastal climate of northern California
have varied greatly, based upon high-resolution studies (ca. every 100 years) of diatoms, alkenones, pollen,
CaCO3%, and total organic carbon at Ocean Drilling Program (ODP) Site 1019 (41.682 N, 124.930 W, 980 m
water depth). Marine climate proxies (alkenone sea surface temperatures [SSTs] and CaCO3%) behaved
remarkably like the Greenland Ice Sheet Project (GISP)-2 oxygen isotope record during the Bølling-Allerod,
Younger Dryas (YD), and early part of the Holocene. During the YD, alkenone SSTs decreased by >3 C below
mean Bølling-Allerod and Holocene SSTs. The early Holocene (ca. 11.6 to 8.2 ka) was a time of generally warm
conditions and moderate CaCO3 content (generally >4%). The middle part of the Holocene (ca. 8.2 to 3.2 ka)
was marked by alkenone SSTs that were consistently 1-2 C cooler than either the earlier or later parts of the
Holocene, by greatly reduced numbers of the gyre-diatom Pseudoeunotia doliolus (<10%), and by a permanent
drop in CaCO3% to <3%. Starting at ca. 5.2 ka, coastal redwood and alder began a steady rise, arguing for
increasing effective moisture and the development of the north coast temperate rain forest. At ca. 3.2 ka, a
permanent ca. 1 C increase in alkenone SST and a threefold increase in P. doliolus signaled a warming of fall
and winter SSTs. Intensified (higher amplitude and more frequent) cycles of pine pollen alternating with
increased alder and redwood pollen are evidence that rapid changes in effective moisture and seasonal
temperature (enhanced El Nino-Southern Oscillation [ENSO] cycles) have characterized the Site 1019 record
since about 3.5 ka.
STUDY NOTES: Alkenone SST estimated using the Prahl et al. [1988] calibration: Uk37 = 0.034T+0.039
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/odp1019-tab.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/barron2003/barron2003.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11