noaa-recon-6222 Overpeck et al. 1997 Arctic Environmental Change of the Last Four Centuries Overpeck, J.T.; Hughen, K.A.; Hardy, D.R.; Bradley, R.S.; Case, R.A.; Douglas, M.S.V.; Finney, B.P.; Gajewski, K.J.; Jacoby, G.C.; Jennings, A.E.; Lamoureux, S.F.; Lasca, A.; MacDonald, G.M.; Moore, J.J.; Retelle, M.J.; Smith, S.; Wolfe, A.P.; Zielinski, G.A. Overpeck et al. 1997 Arctic Environmental Change of the Last Four Centuries 2002-07-01 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/6222 Investigator J.T. Overpeck Investigator K.A. Hughen Investigator D.R. Hardy Investigator R.S. Bradley Investigator R.A. Case Investigator M.S.V. Douglas Investigator B.P. Finney Investigator K.J. Gajewski Investigator G.C. Jacoby Investigator A.E. Jennings Investigator S.F. Lamoureux Investigator A. Lasca Investigator G.M. MacDonald Investigator J.J. Moore Investigator M.J. Retelle Investigator S. Smith Investigator A.P. Wolfe Investigator G.A. Zielinski earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Fragilaria pinnata earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Nitzschia sp. earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,unidentified Achnanthes spp. earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,"Cymbella ""sp. 2""" earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Kraskella kriegeriana earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Fragilaria pseudoconstruens earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Fragilaria capucina earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Synedra parasitica earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Navicula minuscula earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Cymbella minuta (Encyonema) earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Neidium sp. earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Fragilaria pinnata var. intercedens earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,unspecified diatom earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,small Caloneis spp. earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Cyclotella cf. kuetzingiana var. planetophora earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Cyclotella meneghiniana earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Achnanthes flexella earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Cymbella behri earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Amphora perpusilla earth science paleoclimate climate reconstructions temperature,multiple proxies,null,degree Celsius,null,climate reconstructions,anomalized,null,N,null earth science paleoclimate paleolimnology depth,null,null,centimeter,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,other and unidentified Fragilaria sp. earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Pinnularia balfouriana earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,unidentified Denticula spp. earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Navicula vulpina earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Navicula capitata earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Navicula explanata earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Stauroneis phoenicenteron earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Stauroneis smithii earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Fragilaria pinnata var. subrotunda earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Fragilaria construens earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Navicula contenta and var. biceps (Diadesmis spp.) earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,unidentified Navicula spp. earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Fragilaria pinnata var. ventriculosa earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Navicula dicephala earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Navicula schmassmannii earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Navicula pseudoscutiformis earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Cymbella minuta fo. latens (Encyonema) earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Reimeria sinuata earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Eunotia praerupta earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Achnanthes minutissima earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Diploneis elliptica earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Achnanthes peragalli earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Achnanthes pusilla earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Pinnularia legumen earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Cymbella cymbiformis earth science paleoclimate paleolimnology total chrysophyte cysts,null,null,count,null,paleolimnology,raw,null,N,null earth science paleoclimate climate forcing solar irradiance,null,null,watt per square meter,null,climate forcing,null,null,N,null earth science paleoclimate climate forcing age,null,null,year Common Era,null,climate forcing,null,null,N,null earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Nitzschia agnita earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Cymbella sp. earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Pinnularia borealis earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Stauroneis anceps earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Cymbella angustata earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Cymbella aspera earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Gomphonema sp. earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Denticula elegens earth science paleoclimate paleolimnology total diatoms,null,null,count,null,paleolimnology,raw,null,N,SUM of diatom valves counted earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Navicula contenta and var. biceps (Diadesmis) earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Nitzschia frustulum earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Amphora pediculus earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Achnanthes oestrupii earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Amphora libyca earth science paleoclimate paleolimnology total diatoms,null,null,count per gram,null,paleolimnology,raw,null,N,"Diatom concentration, valves*10^6/g DW" earth science paleoclimate climate reconstructions age,null,null,year Common Era,null,climate reconstructions,null,null,N,null earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Achnanthes marginulata earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,unidentified Cymbella spp. earth science paleoclimate paleolimnology identified diatom,null,null,percent,null,paleolimnology,raw,null,N,Navicula laevissima (Sellaphora) earth science paleoclimate reconstructions geoscientificInformation Air Temperature Reconstruction 1600 AD 2000 AD 350 cal yr BP -50 cal yr BP Complete 60 90 -180 180 Geographic Region Arctic Arctic>LATITUDE >LONGITUDE 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

Records of past temperature, precipitation, and other climate variables derived from paleoclimate proxies. Parameter keywords describe what was measured in this data set. Additional summary information can be found in the abstracts of papers listed in the data set citations.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/overpeck1997/ Data Folder; Overpeck et al. 1997 Arctic Environmental Change of the Last Four Centuries USA/NOAA DIF Version 9.8.4 2019-02-21 2019-02-21