noaa-lake-18735 Lac Noir, Quebec 1,000 Year Pollen Data and Climate Reconstructions Paquette, N.; Gajewski, K.J. Lac Noir, Quebec 1,000 Year Pollen Data and Climate Reconstructions 2015-03-20 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/18735 Investigator N. Paquette Investigator K.J. Gajewski earth science paleoclimate climate reconstructions|pollen age,null,null,calendar year before present,null,climate reconstructions|pollen,null,null,N,present=2010 AD earth science paleoclimate fire history|paleolimnology charcoal,sediment,null,square micrometer per milliliter,null,fire history|paleolimnology,null,null,N,Microcharcoal concentration size class 2 437.5-875 um2 earth science paleoclimate fire history|paleolimnology charcoal,sediment,null,square micrometer per square centimeter per year,null,fire history|paleolimnology,null,null,N,Microcharcoal influx total earth science paleoclimate paleolimnology age,null,null,calendar year before present,null,paleolimnology,null,null,N,present = 2010 AD earth science paleoclimate climate reconstructions|pollen temperature,null,null,degree Celsius,Jun-Aug,climate reconstructions|pollen,null,modern analogue technique,N,null earth science paleoclimate paleolimnology volume magnetic susceptibility,sediment,null,dimensionless (CGS system),null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology depth,null,null,centimeter,null,paleolimnology,null,null,N,null earth science paleoclimate fire history|paleolimnology charcoal,sediment,null,square micrometer,null,fire history|paleolimnology,null,null,N,Microcharcoal area size class 2 437.5-875 um2 earth science paleoclimate fire history|paleolimnology charcoal,sediment,null,square micrometer per milliliter,null,fire history|paleolimnology,null,null,N,Microcharcoal concentration total earth science paleoclimate paleolimnology principal component,null,null,dimensionless,null,paleolimnology,null,null,N,PC #2 earth science paleoclimate fire history|paleolimnology charcoal,sediment,null,square micrometer,null,fire history|paleolimnology,null,null,N,Microcharcoal area size class 3 875-1750 um2 earth science paleoclimate fire history|paleolimnology charcoal,sediment,null,square micrometer per square centimeter per year,null,fire history|paleolimnology,null,null,N,Microcharcoal influx size class 1 218.75-437.5 um2 earth science paleoclimate fire history|paleolimnology charcoal,sediment,null,square micrometer per square centimeter per year,null,fire history|paleolimnology,null,null,N,Microcharcoal influx size class 3 875-1750 um2 earth science paleoclimate paleolimnology age,null,null,year Common Era,null,paleolimnology,null,null,N,null earth science paleoclimate fire history|paleolimnology charcoal,sediment,null,square micrometer,null,fire history|paleolimnology,null,null,N,Microcharcoal area size class 4 >=1750 um2 earth science paleoclimate fire history|paleolimnology charcoal,sediment,null,square micrometer per milliliter,null,fire history|paleolimnology,null,null,N,Microcharcoal concentration size class 1 218.75-437.5 um2 earth science paleoclimate fire history|paleolimnology charcoal,sediment,null,square micrometer per milliliter,null,fire history|paleolimnology,null,null,N,Microcharcoal concentration size class 3 875-1750 um2 earth science paleoclimate fire history|paleolimnology charcoal,sediment,null,square micrometer per square centimeter per year,null,fire history|paleolimnology,null,null,N,Microcharcoal influx size class 2 437.5-875 um2 earth science paleoclimate climate reconstructions|pollen precipitation,null,null,centimeter,annual,climate reconstructions|pollen,null,modern analogue technique,N,null earth science paleoclimate paleolimnology calcium carbonate,sediment,null,weight percent,null,paleolimnology,null,loss on ignition,N,loss on ignition at 950 degrees C earth science paleoclimate paleolimnology principal component,null,null,dimensionless,null,paleolimnology,null,null,N,PC #1 earth science paleoclimate fire history|paleolimnology charcoal,sediment,null,square micrometer per square centimeter per year,null,fire history|paleolimnology,null,null,N,Microcharcoal influx size class 4 >=1750 um2 earth science paleoclimate paleolimnology organic matter,sediment,null,weight percent,null,paleolimnology,null,loss on ignition,N,loss on ignition at 550 degrees C earth science paleoclimate paleolimnology varve thickness,sediment,null,centimeter,null,paleolimnology,null,null,N,null earth science paleoclimate fire history|paleolimnology charcoal,sediment,null,square micrometer,null,fire history|paleolimnology,null,null,N,Microcharcoal area size class 1 218.75-437.5 um2 earth science paleoclimate fire history|paleolimnology charcoal,sediment,null,square micrometer per milliliter,null,fire history|paleolimnology,null,null,N,Microcharcoal concentration size class 4 >=1750 um2 earth science paleoclimate paleolimnology reconstruction earth science paleoclimate paleolimnology magnetic susceptibility earth science paleoclimate paleolimnology population abundance earth science paleoclimate paleolimnology physical properties earth science paleoclimate paleolimnology geochemistry geoscientificInformation 988 AD 2007 AD 962 cal yr BP -57 cal yr BP Complete 45.7755 45.7755 -75.1351 -75.1351 Continent North America Canada Quebec Lac Noir>LATITUDE 45.7755>LONGITUDE -75.1351 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 Nathalie Paquette and Konrad Gajewski 2013 Quaternary Science Reviews 75 169-180 10.1016/j.quascirev.2013.06.007

A pollen profile from a lake with varved sediments sampled at continuous 10-year intervals and spanning the past 1000 years was analyzed to understand the effects of climate change and anthropogenic activity on forests in southwestern Quebec. Pollen assemblages were dominated by arboreal taxa, primarily Pinus, Tsuga, Betula and Fagus. Between 990 and 1560 AD, pollen accumulation rates and percentages of hardwoods (Betula, Fagus, Acer, Ulmus, Tilia) and Tsuga were relatively high. At 1560 AD, PARs of many hardwood taxa (Fagus, Acer, Betula, Fraxinus, Ulmus) and Tsuga abruptly decreased, some remaining low for the remainder of the record (Tsuga, Fagus, Acer), but others increasing after 50 years (Betula, Fraxinus). An increase in non-arboreal pollen between 1810 and 2010 AD was caused by European settlement of the area. The transition in the pollen assemblages beginning at 1560 AD and a climate reconstruction based on these data shows an abrupt climate cooling had a significant impact on the pollen accumulation rates of the region within a couple of decades. A synthesis of this record with other high-resolution and well-dated pollen data from the conifer-hardwood forest of eastern North America shows consistent results across the whole area, indicating that very-high resolution pollen data can provide insight into multi-decadal climate variability and its impact on forest vegetation. STUDY NOTES: High-resolution (decadal scale) pollen and sediment physical properties record from Lac Noir, southwestern Quebec, spanning the past 1,000 years. Chronology is based on varve counts except for the upper 6.5 cm, which is based on 210Pb.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/canada/pq/lacnoir2013loi.txt Data File; Lac Noir LOI Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/canada/pq/lacnoir2013pollen.txt Data File; Lac Noir Pollen Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/canada/pq/lacnoir2013charcoal.txt Data File; Lac Noir Charcoal Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/canada/pq/lacnoir2013ms.txt Data File; Lac Noir Magnetic Susceptibility Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/canada/pq/lacnoir2013recon.txt Data File; Lac Noir Climate Reconstructions GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/canada/pq/lacnoir2013varve.txt Data File; Lac Noir Varve Thickness Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/canada/pq/lacnoir2013.xls Excel Data File; Lac Noir All Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11