noaa-lake-6189
Sawtooth Lake, Ellesmere Island 400 Year Varved Sediment Data
Francus, P.; Bradley, R.S.; Abbott, M.B.; Patridge, W.; Keimig, F.T.
Sawtooth Lake, Ellesmere Island 400 Year Varved Sediment Data
2008-07-01
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/6189
Investigator
P.
Francus
Investigator
R.S.
Bradley
Investigator
M.B.
Abbott
Investigator
W.
Patridge
Investigator
F.T.
Keimig
earth science
paleoclimate
paleolimnology
varve thickness,sediment,null,centimeter,null,paleolimnology,null,null,N,null
earth science
paleoclimate
paleolimnology
age,null,null,year Common Era,null,paleolimnology,null,null,N,varve years
earth science
paleoclimate
paleolimnology
grain size median,sediment,null,micrometer,null,paleolimnology,null,null,N,equivalent disk diameter
earth science
paleoclimate
paleolimnology
physical properties
geoscientificInformation
350 cal yr BP
-49 cal yr BP
Complete
79.334
79.334
-83.85
-83.85
280
280
Continent
North America
Canada
Nunavut
Sawtooth Lake>LATITUDE 79.334>LONGITUDE -83.85
None
Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site.
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
Francus, P.,Bradley, R.S.,Abbott, M.B.,Patridge, W.,Keimig, F. 2002. Paleoclimate studies of minerogenic sediments using annually resolved textural parameters. Geophysical Research Letters, 29(20), 1998
We obtained quantitative multivariate data from each varve of a minerogenic lacustrine sequence from the Canadian High Arctic, using an image analysis technique applied to thin-sections. The information on each varve from the uppermost core section was compared with a 35 yr meteorological dataset. Snowmelt intensity, which is an index reflecting the energy available for sediment transport, correlates well with the median grain-size measured for each varve, as well as with the weight of the 10-20 and 20-60 um fractions. The proportion of fine silt also correlates with low intensity summer precipitation. This methodology allows us to decipher the climatic control on sedimentary processes and yield a new perspective for constructing models which link climate to sediments that contain few biological remains. This model can then be used to infer paleoclimate with annual resolution from the downcore grain-size analysis.
STUDY NOTES: Lamination thickness measured on enlarged digital photo of sediment thin-sections using a utility described in Francus et al. (2002). We estimate the precision of the measurements at about 0.04 mm.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/canada/ellesmere/sawtooth2002.xls
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/canada/ellesmere/sawtooth2002.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11