Sawtooth Lake, Ellesmere Island 400 Year Varved Sediment Data Francus, P.; Bradley, R.S.; Abbott, M.B.; Patridge, W.; Keimig, F.T. Francus, P. Bradley, R.S. Abbott, M.B. Patridge, W. Keimig, F.T. 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 (Sawtooth Lake>LATITUDE 79.334>LONGITUDE -83.85) 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. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Francus, P. Investigator : Bradley, R.S. Investigator : Abbott, M.B. Investigator : Patridge, W. Investigator : Keimig, F.T. 2008-07-01 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/6189 https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/canada/ellesmere/sawtooth2002.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/canada/ellesmere/sawtooth2002.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/canada/ellesmere/sawtooth2002.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/canada/ellesmere/sawtooth2002.txt English https://www.ncdc.noaa.gov/paleo/study/6189 https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/canada/ellesmere/sawtooth2002.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/canada/ellesmere/sawtooth2002.txt 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 START YEAR: 350 cal yr BP * END YEAR: -49 cal yr BP -83.85 79.334 -83.85 79.334