# Woodhouse et al. 2006 Updated Streamflow Reconstructions for the Upper Colorado River Basin #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # Template Version 4.0 # Encoding: UTF-8 # NOTE: Please cite original publication, NOAA Landing Page URL, dataset and publication DOIs (where available), # and date accessed when using these downloaded data. If there is no publication information, please cite investigator, study title, NOAA Landing Page URL, and date accessed. # # NOAA_Landing_Page: https://www.ncei.noaa.gov/access/paleo-search/study/6352 # Landing_Page_Description: NOAA Landing Page of this file's parent study, which includes all study metadata. # # Study_Level_JSON_Metadata: https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/json/noaa-recon-6352.json # Study_Level_JSON_Description: JSON metadata of this file's parent study, which includes all study metadata. # # Data_Type: Climate Reconstructions # # Dataset_DOI: 10.25921/3d73-zv15 # # Science_Keywords: Streamflow Reconstruction #------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/reconstructions/northamerica/usa/upper-colorado-recons-lees-ferry-noaa.txt # Data_Download_Description: NOAA Template File; Lees Ferry Reconstruction Data # # Supplemental_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/reconstructions/northamerica/usa/upper-colorado-trees.xls # Supplemental_Description: Excel File; Chronology data and metadata # # Supplemental_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/reconstructions/northamerica/usa/upper-colorado-regress.doc # Supplemental_Description: Excel File; Regression equations and coefficients and PC data # # Supplemental_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/reconstructions/northamerica/usa/upper-colorado-pca.xls # Supplemental_Description: Excel File; Loadings from PCA on chronologies # # Supplemental_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/reconstructions/northamerica/usa/upper-colorado-recons.xls # Supplemental_Description: Excel File; Data in Excel format # #------------------- # Contribution_Date # Date: 2006-05-01 #------------------- # File_Last_Modified_Date # Date: 2025-06-12 #------------------- # Title # Study_Name: Woodhouse et al. 2006 Updated Streamflow Reconstructions for the Upper Colorado River Basin #------------------- # Investigators # Investigators: Woodhouse, C.A.(https://orcid.org/0000-0003-0545-9753); Gray, S.T.; Meko, D.M. #------------------- # Description_Notes_and_Keywords # Description: Updated Streamflow Reconstructions for the Upper Colorado River Basin, based on a network of moisture-sensitive tree-ring chronologies in Colorado, southwestern Wyoming, and northeastern Utah. Tree-ring base reconstructions were generated for a set of 10 gages in the Upper Colorado River basin including Lees Ferry, as well as gages in the Green, Gunnison, Colorado main stem, and San Juan River basins. Reconstructions were generated using several reconstruction methods to test the robustness of results to different statistical approaches. All the gages but Lees Ferry were generated using both a full set of predictor chronologies and a geographically limited (upstream watershed + 100km buffer) set with stepwise regression. Four different approaches were used for Lees Ferry; residual chronologies in stepwise regression (Lees-A), standard chronologies in stepwise regression (Lees-B), principal components regression with residual chronologies (Lees-C), and principal components regression with standard chronologies (Lees-D). Units are millions of cubic meters. Details on methodology are in Woodhouse et al. 2006. The natural flow estimates for the gage data, 1906-1995, used for the calibrations were provided by Jim Prairie of the U.S. Bureau of Reclamation in the summer of 2005. Units are in millions of cubic meters. 1. Full Pool Reconstructions for 9 gage locations; 2. Geographically-Limited Pool Reconstructions for 9 gage locations; 3. Lees Ferry Reconstructions, 4 alternative methods; 4. Gage Data (instrumental) See also the following Supplementary Data Files: Supplementary Data 1. Chronology data and metadata (upper-colorado-trees.xls); Supplementary Data 2. Regression equations and coefficients, PC data (upper-colorado-regress.doc); Supplementary Data 3. Loadings from PCA on chronologies (upper-colorado-pca.xls). #------------------- # Publication # Authors: Woodhouse, C.A., S.T. Gray, and D.M. Meko # Journal_Name: Water Resources Research # Published_Title: Updated Streamflow Reconstructions for the Upper Colorado River Basin. # Published_Date_or_Year: 2006-05-11 # Volume: 42 # Issue: 5 # Pages: # Report_Number: # DOI: 10.1029/2005WR004455 # Full_Citation: # Abstract: Updated proxy reconstructions of water year (October–September) streamflow for four key gauges in the Upper Colorado River Basin were generated using an expanded tree ring network and longer calibration records than in previous efforts. Reconstructed gauges include the Green River at Green River, Utah; Colorado near Cisco, Utah; San Juan near Bluff, Utah; and Colorado at Lees Ferry, Arizona. The reconstructions explain 72–81% of the variance in the gauge records, and results are robust across several reconstruction approaches. Time series plots as well as results of cross-spectral analysis indicate strong spatial coherence in runoff variations across the subbasins. The Lees Ferry reconstruction suggests a higher long-term mean than previous reconstructions but strongly supports earlier findings that Colorado River allocations were based on one of the wettest periods in the past 5 centuries and that droughts more severe than any 20th to 21st century event occurred in the past. #------------------- # Funding_Agency # Funding_Agency_Name: U.S. Geological Survey # Grant_Number: #------------------- # Funding_Agency # Funding_Agency_Name: Wyoming Water Development Commission # Grant_Number: #------------------- # Funding_Agency # Funding_Agency_Name: Arizona Board of Regents Technology and Research Initiative Fund # Grant_Number: #------------------- # Funding_Agency # Funding_Agency_Name: US National Oceanic and Atmospheric Administration (NOAA) # Grant_Number: GC02-046 Climate Change Data and Detection program #------------------- # Site_Information # Site_Name: Upper Colorado River Basin # Location: Colorado # Northernmost_Latitude: 43 # Southernmost_Latitude: 37 # Easternmost_Longitude: -106 # Westernmost_Longitude: -111 # Elevation_m: #------------------- # Data_Collection # Collection_Name: leesFerryRecon_Woodhouse2006 # First_Year: 1490 # Last_Year: 1998 # Time_Unit: CE # Core_Length_m: # Parameter_Keywords: reconstructions # Notes: Lees Ferry Reconstructions, 4 alternative methods #------------------- # Chronology_Information # Chronology: #------------------- # Variables # # PaST_Thesaurus_Download_Resource: https://www.ncei.noaa.gov/access/paleo-search/skos/past-thesaurus.rdf # PaST_Thesaurus_Download_Description: Paleoenvironmental Standard Terms (PaST) Thesaurus terms, definitions, and relationships in SKOS format. # # Variables format: shortname what,material,error,units,seasonality,data_type,detail,method, C(har) or N(umeric) data,additional information # ## age age,,,year Common Era,,climate reconstructions;tree ring,,,N, ## resnonpca streamflow,,,cubic meter,Oct-Sep,climate reconstructions;tree ring,,regression analysis,N,x1e6 units; using residual chronologies; stepwise regression ## stdnonpca streamflow,,,cubic meter,Oct-Sep,climate reconstructions;tree ring,,regression analysis,N,x1e6 units; using standard chronologies; stepwise regression ## respca streamflow,,,cubic meter,Oct-Sep,climate reconstructions;tree ring,,regression analysis,N,x1e6 units; using residual chronologies; principal components regression ## stdpca streamflow,,,cubic meter,Oct-Sep,climate reconstructions;tree ring,,regression analysis,N,x1e6 units; using standard chronologies; principal components regression #------------------------------- # Data: # Missing_Values: NA age resnonpca stdnonpca respca stdpca 1490 19127 22963 22909 25109 1491 24988 25646 25790 28853 1492 17548 21008 19492 24563 1493 19148 19146 15735 19402 1494 24166 24010 23999 25679 1495 6130 11286 7141 10769 1496 8305 5133 8053 6378 1497 16774 11884 19205 15001 1498 25409 22286 26969 24263 1499 12335 13017 14350 15847 1500 8774 7219 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19420 1989 14011 16416 12465 14336 1990 12593 12559 12815 12735 1991 20349 20518 21105 18873 1992 16707 15820 18854 18102 1993 22655 21751 22008 20750 1994 12963 14842 12739 13749 1995 22584 22890 25951 23789 1996 20249 20121 18609 19432 1997 20945 22516 22761 23438 1998 NA 21989 NA 23122