noaa-lake-8646
Arolik and Ongoke Lake, Alaska 16-10KYrBP Biogenic Silica Data
Hu, F.S.; Nelson, D.E.; Clarke, G.H.; Ruhland, K.M.; Huang, Y.; Kaufman, D.S.; Smol, J.P.
Arolik and Ongoke Lake, Alaska 16-10KYrBP Biogenic Silica Data
2009-03-01
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/8646
Investigator
F.S.
Hu
Investigator
D.E.
Nelson
Investigator
G.H.
Clarke
Investigator
K.M.
Ruhland
Investigator
Y.
Huang
Investigator
D.S.
Kaufman
Investigator
J.P.
Smol
earth science
paleoclimate
paleolimnology
biogenic silica,sediment,null,milligram per gram,null,paleolimnology,null,spectrophotometry,N,size fraction: 0.42-2 mm; Mortlock and Froelich 1989 with 10% Na2CO3
earth science
paleoclimate
paleolimnology
age,null,null,calendar year before present,null,paleolimnology,null,null,N,null
earth science
paleoclimate
paleolimnology
geochemistry
geoscientificInformation
16045 cal yr BP
10425 cal yr BP
Complete
59.967
59.967
-161.116
-161.116
145
145
Continent
North America
United States Of America
Alaska
Arolik Lake>LATITUDE 59.967>LONGITUDE -161.116
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
Hu, F.S., Nelson, D.E., Clarke, G.H., Ruhland, K.M., Huang, Y., Kaufman, D.S., Smol, J.P. 2006. Abrupt climatic events during the last glacial-interglacial transition in Alaska. Geophysical Research Letters, 33, L18708.
Evidence is mounting that abrupt climatic shifts occurred during the last glacial-interglacial transition (LGIT) in the North Atlantic and other regions. However, few high-resolution climatic records of the LGIT exist from the high latitudes of the North Pacific rim. We analyzed lakesediments from southwestern Alaska for biogenic silica,organic carbon, organic nitrogen, diatom assemblages, and compound-specific hydrogen isotopes. Results revealclimatic changes coincident with the Younger Dryas, Intra-Allerød Cold Period, and Pre-Boreal Oscillation. However,major discrepancies exist in the paleoclimate patterns of the Bølling-Allerød interstadial between our data and the GISP2 d18O record from Greenland, and causes are uncertain. These data suggest that the North Pacific and North Atlanticexperienced similar reversals during climatic warming of theLGIT but that the Bølling-Allerød cooling trend in the GISP2d18O record is probably not a hemispheric or global pattern.
STUDY NOTES: Raw biogenic silica measurements from Arolik and Ongoke Lake sediments, spanning ~16,000 to 10,500 calendar year BP.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/alaska/arolik-ongoke2006.xls
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/alaska/arolik-ongoke2006.txt
USA/NOAA
DIF
Version 9.8.4
2019-03-27
2019-03-27