noaa-recon-19017 Albemarle Sound Drainage Basin 1000 Year Moisture Balance Reconstruction Stahle, D.K.; Burnette, D.J.; Stahle, D.W. Albemarle Sound Drainage Basin 1000 Year Moisture Balance Reconstruction 2015-07-22 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/19017 Investigator D.K. Stahle Investigator D.J. Burnette Investigator D.W. Stahle earth science paleoclimate climate reconstructions|tree ring age,null,null,year Common Era,null,climate reconstructions|tree ring,null,null,N,null earth science paleoclimate climate reconstructions|tree ring Palmer Hydrologic Drought Index,null,null,dimensionless,Jul,climate reconstructions|tree ring,null,principal component analysis|regression analysis,N,principal components regression earth science paleoclimate instrumental Palmer Drought Severity Index,null,null,dimensionless,Jul,instrumental,null,null,N,null earth science paleoclimate climate reconstructions|tree ring Palmer Hydrologic Drought Index,null,null,dimensionless,Jul,climate reconstructions|tree ring,smoothed,principal component analysis|regression analysis,N,smoothed with 60 year spline; principal components regression earth science paleoclimate climate reconstructions|tree ring Palmer Hydrologic Drought Index,null,null,dimensionless,Jul,climate reconstructions|tree ring,smoothed,principal component analysis|regression analysis,N,smoothed with 10 year spline; principal components regression earth science paleoclimate climate reconstructions|tree ring Palmer Hydrologic Drought Index,null,null,dimensionless,Jul,climate reconstructions|tree ring,smoothed,principal component analysis|regression analysis,N,smoothed with 30 year spline; principal components regression earth science paleoclimate tree ring number of samples,null,null,count,null,tree ring,null,null,N,null earth science paleoclimate climate reconstructions|tree ring Palmer Hydrologic Drought Index,null,null,dimensionless,Jul,climate reconstructions|tree ring,smoothed,principal component analysis|regression analysis,N,smoothed with 20 year spline; principal components regression earth science paleoclimate tree ring age,null,null,year Common Era,null,tree ring,null,null,N,null earth science paleoclimate tree ring tree ring standardized growth index,null,null,null,null,tree ring,composited,null,N,Regional average total ring width chronology for Blackwater River + Devils Gut earth science paleoclimate reconstructions streamflow geoscientificInformation Other Hydroclimate Reconstruction drought TADI Taxodium distichum (L.) Rich. baldcypress 934 AD 2005 AD 1016 cal yr BP -55 cal yr BP Complete 35.5 36.5 -78 -76 Continent North America United States Of America North Carolina Albemarle Sound Drainage Basin>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 Daniel K. Stahle, Dorian J. Burnette, David W. Stahle 2013 Estuaries and Coasts 36 6 1340-1353 10.1007/s12237-013-9643-y http://link.springer.com/article/10.1007/s12237-013-9643-y

Freshwater discharge into Albemarle Sound and many other large estuaries can have a major impact on the physical and biological properties of the estuary. Earlywood (EW) and latewood (LW) width tree ring chronologies recently developed from ancient trees and sub-fossil logs found at Devil's Gut of the Roanoke River, North Carolina, were used with new EW and LW width data from Blackwater River, Virginia, to reconstruct the July Palmer Hydrological Drought Index (PHDI) over the drainage basin of Albemarle Sound from 934 to 2005. This reconstruction is based on a principal component regression using millennium-long chronologies of both EW and LW widths, calibrated and verified against instrumental July PHDI from 1895 to 1985. The reconstruction provides a lengthy representation of inter-annual to multi-decadal growing season moisture variability that directly affects water quality in the Albemarle Sound estuarine ecosystem. Single-year drought and wetness extremes were more common in the modern instrumental period (1895-2005), but prolonged droughts reconstructed during the Medieval and Early Colonial eras were more severe and sustained than the reconstructed or observed droughts during the twentieth century. Several abrupt transitions between decadal drought and wetness regimes are reconstructed, especially during the Medieval Era. Composite analysis of lower-magnitude sub-decadal regime shifts in the instrumental record during the twentieth century indicates that major changes in mid-latitude circulation over the Northern Hemisphere may have been involved in these longer decadal transitions between moisture regimes over Albemarle Sound in prehistory. STUDY NOTES: July moisture balance (Palmer Hydrological Drought Index, PHDI) reconstruction for the Albemarle Sound, North Carolina drainage basin, based on two baldcypress tree-ring chronologies, for the past millennium. Tree-ring data are archived in the International Tree-Ring Data Bank (ITRDB), site codes VA021 and NC025.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/northamerica/usa/albemarle2013phdi.txt Text Data File; Albemarle Sound Drainage Basin 1000 Year PHDI Reconstruction GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/northamerica/usa/albemarle2013trsgi.txt Text Data File; Albemarle Sound Drainage Basin 1000 Year Regional Tree Ring Chronology GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/northamerica/usa/albemarle2013phdi.xlsx Excel Data File; Albemarle Sound Drainage Basin PHDI Reconstruction, Statistics, and Tree Ring Chronology USA/NOAA DIF Version 9.8.4 2019-06-03 2019-06-03