noaa-historical-16336 St. Lawrence Valley, Quebec 18th and 19th Century Composite Daily Temperature Data Slonosky, V.C. St. Lawrence Valley, Quebec 18th and 19th Century Composite Daily Temperature Data 2014-07-07 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/16336 Investigator V.C. Slonosky earth science paleoclimate climate reconstructions|historical minimum surface temperature,null,unspecified margin of error,degree Celsius,null,climate reconstructions|historical,null,regression analysis,N,to estimate daily minimum from fixed hourly observations earth science paleoclimate climate reconstructions|historical maximum surface temperature,null,null,degree Celsius,null,climate reconstructions|historical,null,regression analysis,N,daily maximum earth science paleoclimate climate reconstructions|historical maximum surface temperature,null,unspecified margin of error,degree Celsius,null,climate reconstructions|historical,null,regression analysis,N,to estimate Montreal daily maximum temperatures from other sites earth science paleoclimate climate reconstructions|historical notes,null,null,null,null,climate reconstructions|historical,null,null,C,source for daily maximum value earth science paleoclimate climate reconstructions|historical minimum surface temperature,null,null,degree Celsius,null,climate reconstructions|historical,null,regression analysis,N,daily minimum earth science paleoclimate climate reconstructions|historical notes,null,null,null,null,climate reconstructions|historical,null,null,C,source for daily minimum value earth science paleoclimate climate reconstructions|historical age,null,null,day of year,null,climate reconstructions|historical,null,null,N,null earth science paleoclimate climate reconstructions|historical age,null,null,year Common Era,null,climate reconstructions|historical,null,null,N,null earth science paleoclimate climate reconstructions|historical minimum surface temperature,null,unspecified margin of error,degree Celsius,null,climate reconstructions|historical,null,regression analysis,N,to estimate Montreal daily minimum temperatures from other sites earth science paleoclimate climate reconstructions|historical maximum surface temperature,null,unspecified margin of error,degree Celsius,null,climate reconstructions|historical,null,regression analysis,N,to estimate daily maximum from fixed hourly observations earth science paleoclimate historical weather observation geoscientificInformation 1742 AD 2010 AD 208 cal yr BP -60 cal yr BP Complete 45.4 47 -77 -71 Continent North America Canada Quebec St. Lawrence Valley>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

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Boulder CO 80305-3328 USA online ASCII Victoria C. Slonosky 2014 International Journal of Climatology 10.1002/joc.4085 http://onlinelibrary.wiley.com/doi/10.1002/joc.4085/abstract Slonosky, V.C. 2014 Geosciences Data Journal 10.1002/gdj3.11 http://onlinelibrary.wiley.com/enhanced/doi/10.1002/gdj3.11

Daily observations of weather and climate for the province of Quebec, Canada, start in the 18th century and continue to the present day. Daily temperature observations from 12 observers ranging from 1742 to 1873 are described here. The frequency distributions of the temperature observations from each of the historical weather journals are examined for data quality and consistency. Adjustments for differing types of exposures, particularly north wall exposures, are developed. It is shown that examination of the daily data distribution can be used to infer information concerning the instruments used and likely exposure in the absence of metadata. Comparisons of the relative frequency distributions of historical and modern hourly observations are used to assess the reliability of the daily historical temperature data, and are able to detect problems with instrument exposure or sampling biases. Historical observations of temperature from the 18th and 19th centuries are shown to be comparable to modern temperature data. These daily observations will be used in further studies to analyse changes in climate and extreme conditions on a decadal to centennial time frame, and will form part of international data sets for the reconstruction and analysis of past climate events. STUDY NOTES: 18th and 19th Century composite historical daily temperature observations from the St. Lawrence River valley, Quebec, Canada.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/historical/northamerica/canada/st-lawrence2014temp-sources.txt Data File; St. Lawrence Valley Composite Daily Min-Max Temperatures with Source Information GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/historical/northamerica/canada/st-lawrence2014temp.txt Data File; St. Lawrence Valley Composite Daily Min-Max Temperatures USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11