Great Salt Lake, Utah 576 Year Water Level Reconstruction DeRose, R.J.; Wang, S.-Y.; Buckley, B.M.; Bekker, M.F. DeRose, R.J. Wang, S.-Y. Buckley, B.M. Bekker, M.F. Other Hydroclimate Reconstruction Pacific Decadal Oscillation 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 (lake level,null,null,centimeter,Sep-Aug,climate reconstructions|tree ring,differenced,null,N,first difference) earth science/paleoclimate/reconstructions (Great Salt Lake>LATITUDE 41.05>LONGITUDE -112.5) Utah's Great Salt Lake (GSL) is a closed-basin remnant of the larger Pleistocene-age Lake Bonneville. The modern instrumental record of the GSL-level (i.e. elevation) change is strongly modulated by Pacific Ocean coupled ocean/atmospheric oscillations at low frequency, and therefore reflects the decadal-scale wet/dry cycles that characterize the region. A within-basin network of seven tree-ring chronologies was developed to reconstruct the GSL water year (September-August) level, based upon the instrumental record of GSL level from 1876 to 2005. The result was a 576-year reconstruction of the GSL level that extends from 1429 to 2005; all calibration-verification tests commonly used in dendroclimatology were passed. The reconstruction explains 48% of the variance in the instrumental GSL level and exhibits significant periodicity at sub-decadal scales over the past six centuries. Meanwhile, predominance of multi-decadal periodicity in the early half of the record shifted to quasi-decadal dominance in the latter half, and this is consistent with that of proxy reconstructions of the Pacific Decadal Oscillation. The GSL-level reconstruction is a crucial component to improving our insight into the possible controls of coupled ocean-atmosphere interactions on precipitation delivery. STUDY NOTES: Reconstruction of Great Salt Lake water level from 1429 to 2005 AD, based on a network of seven tree-ring chronologies and on the observed Great Salt Lake (GSL) first-differenced water year (September-August) level (cm) for the period 1876-2005. The seven tree-ring chronologies are included in the International Tree-Ring Data Bank, site codes UT532-UT538. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : DeRose, R.J. Investigator : Wang, S.-Y. Investigator : Buckley, B.M. Investigator : Bekker, M.F. 2014-05-16 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/16439 https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/northamerica/usa/utah/great-salt-lake2014level.txt https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/northamerica/usa/utah/great-salt-lake2014level.txt English https://www.ncdc.noaa.gov/paleo/study/16439 https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/northamerica/usa/utah/great-salt-lake2014level.txt R. Justin DeRose, Shih-Yu Wang, Brendan M. Buckley, and Matthew F. Bekker2014Tree-ring reconstruction of the level of Great Salt Lake, USAThe Holocene10.1177/0959683614530441http://hol.sagepub.com/content/early/2014/04/29/0959683614530441.abstract START YEAR: 1429 AD * END YEAR: 2005 AD -112.5 41.05 -112.5 41.05