noaa-lakelevel-25231 eng; USA utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact 2023-09-01 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Lake Athabasca 200 Year Water Level Reconstruction 2006-06-05 publication doi:10.25921/9xw0-h868 noaa-lakelevel-25231 NCEI DSI 1200_02 NCEI DSI 1200_01 Meko, D.M. originator Meko, D.M. author NOAA National Centers for Environmental Information publisher tableDigital This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Lake Level Reconstruction. The data include parameters of climate reconstructions with a geographic location of Saskatchewan, Canada. The time period coverage is from 149 to -49 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data. Records of past lake levels, mostly related to changes in moisture balance (evaporation-precipitation). Parameter keywords describe what was measured in this dataset. Additional summary information can be found in the abstracts of papers listed in the dataset citations. completed NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact https://www.ncei.noaa.gov/pub/data/paleo/webimages/pc-default-lakelevel.png Paleoclimatology - Lake Level Reconstruction PNG Earth Science > Climate Indicators > Paleoclimate Indicators > Ocean/Lake Records > Lake Levels theme Global Change Master Directory (GCMD) Science Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian earth science > paleoclimate > climate reconstructions earth science > paleoclimate > climate reconstructions earth science > paleoclimate > lake levels theme Global Change Master Directory (GCMD) Science Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian What: lake level; Material: null What: age; Material: null theme Paleoenvironmental Standard Terms (PaST) Thesaurus NOAA National Centers for Environmental Information https://www.ncei.noaa.gov/products/paleoclimatology/paleoenvironmental-standard-terms-thesaurus PaST Thesaurus information publisher Continent > North America > Canada > Saskatchewan > Lake Athabasca > LATITUDE 59.1 > LONGITUDE -109.2 place DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian otherRestrictions Cite as: Meko, D.M. (2006-06-05): NOAA/WDS Paleoclimatology - Lake Athabasca 200 Year Water Level Reconstruction. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/9xw0-h868. Accessed [date]. otherRestrictions Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose otherRestrictions None otherRestrictions 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. Tree-Ring Inferences on Water-Level Fluctuations of Lake Athabasca 2006 publication David M. Meko author Canadian Water Resources Journal publisher https://doi.org/10.4296/cwrj3104229 HTTPS Web Browser Associated Reference published 2006 David M. Meko, 2006: Tree-Ring Inferences on Water-Level Fluctuations of Lake Athabasca. Canadian Water Resources Journal, 31, 229-248, 10.4296/cwrj3104229 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 1801 CE to 1999 CE; Date Range: 149 cal yr BP to -49 cal yr BP; -109.2 -109.2 59.1 59.1 Study Coordinates 59.1 -109.2 1801 1999 STUDY NOTES: Tree-ring reconstructed water level of Lake Athabasca at Ft. Chipewyan, Alberta Province, Canada. Reconstructed variable is the 10-day-average water level for the period July 11-20. Tree rings of white spruce (Picea glauca) have previously been used to reconstruct annual variations in Lake Athabasca water level back to the early 1800s (Stockton and Fritts 1973). This study includes an updated reconstruction of Lake Athabasca water level, and extends the earlier tree-ring work in several ways: 1) improved tree-ring site coverage of the delta with additional chronologies, 2) increased sample depth at existing tree-ring chronologies, 3) analysis of the statistical relationship between tree-ring indices and climatic, 4) analysis of stable-isotope variations in cellulose of tree rings, 5) placement of the delta chronologies in the context of tree-ring variations over a much larger region of western Canada, 6) reconstruction of annual streamflow of the Peace and Athabasca Rivers, and 7) statistical testing of differences in tree-ring data and reconstructed water-level before and after construction of W.A.C. Bennett Dam. Supplementary information can be found in the Meko (2002) BC Hydro report at: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/northamerica/canada/meko2002.pdf Original data file format is available here: https://www.ncei.noaa.gov/pub/data/paleo/treering/reconstructions/northamerica/canada/athabasca-lakelevel2006.txt Tree ring data available from the International Tree Ring Data Bank: https://www.ncei.noaa.gov/products/paleoclimatology/tree-ring Files cana212.rwl - cana219.rwl were used for the reconstruction. These data include 1970 collections by Fritts and Stockton, and new 2001 collections or recollections by Meko: cana212.rwl - Point Providence 2001 Recollection cana213.rwl - Quatre Fourches 2001 Recollection cana214.rwl - Horseshoe Slough cana215.rwl - Revillon Coupe 2001 Recollection cana216.rwl - Peace/Rouchers 2001 Recollection cana217.rwl - Athabasca River 2001 Recollection cana218.rwl - Birch River cana219.rwl - Mamawi Lake ABSTRACT SUPPLIED BY ORIGINATOR: Tree-ring data were analyzed for a long-term perspective on ecological and hydroclimatic variations on the Peace-Athabasca Delta (PAD). The ecosystem of this Ramsar Wetland of International Importance in northeastern Alberta is sensitive to fluctuations in water levels of the numerous lakes, channels and perched basins, and attention has been focused in recent decades on the possibility of deleterious effects from climatic change and regulation of the Peace River by W.A.C. Bennett Dam. A network of eight Picea glauca tree-ring chronologies was developed, time series features of growth variation were summarized, and the chronologies were applied in a regression model to reconstruct an annual time series of early summer (July 11 to 20) water levels of Lake Athabasca for the period A.D. 1801-1999. Though statistically weak (R2 = 0.36), the reconstruction verifies adequately in cross-validation and is consistent with anecdotal written records of a dramatic decline in water levels in 1879-81. Correlation of reconstructed and observed water levels improves with smoothing. Gaussian smoothing (ten years and longer) identifies a major low centred on 1890. The differential growth responses among the sites as well as evidence from other tree-ring studies suggest the 1890 low was associated primarily with diminished Peace River flows. The 20th century is unusual in a long-term context for high-amplitude multi-decadal variations in tree growth and reconstructed water levels, but the timing of these more recent fluctuations appears unrelated to the building of the W.A.C. Bennett Dam. Further research is needed to better discriminate the tree-ring signal for lake-level variation from the signal due to localized precipitation. NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information distributor In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. Native Format(s) https://doi.org/10.25921/9xw0-h868 HTTPS Landing Page Metadata Landing Page NCEI landing page with general information and links to access the data. information https://www.ncei.noaa.gov/access/paleo-search/study/25231 HTTPS Web Browser NOAA Study Page Study page with data access information. search https://www.ncei.noaa.gov/products/paleoclimatology/lake-level-reconstruction HTTPS Information NCEI Lake Level Reconstruction Page General information for this data type. information https://www.ncei.noaa.gov/pub/data/paleo/treering/reconstructions/northamerica/canada/athabasca2006lakelevel.txt HTTPS Download NCEI Direct Download Direct download links for dataset files. download asNeeded This ISO metadata record was translated from DIF metadata using dif-9x-to-iso-19115-2.xsl Version: 2022-06-21