North Pond, Alberta Carbon/Nitrogen Data over the last 5000 years Wolfe, B.B.; Edwards, T.W.D.; Hall, R.I.; Johnston, J.W. Wolfe, B.B. Edwards, T.W.D. Hall, R.I. Johnston, J.W. Other Hydroclimate Reconstruction earth science/paleoclimate/paleolimnology (carbon/nitrogen,null,null,dimensionless,null,paleolimnology,null,null,N,weight ratio; proxy of lake level) earth science/paleoclimate/paleolimnology (age,null,null,year Common Era,null,paleolimnology,null,null,N,null) earth science/paleoclimate/paleolimnology (age,null,null,calendar year before present,null,paleolimnology,null,null,N,null) earth science/paleoclimate/lake levels (North Pond, Alberta>LATITUDE 58.7951>LONGITUDE -110.7119) Shrinking glaciers and snowpacks are reducing discharge in rivers that drain the central Rocky Mountain region – water that supports downstream societies and ecosystems of western North America. However, a new 5200-year record of Lake Athabasca water-level variations, which serves as a sensitive gauge of past changes in alpine-sourced river discharge, reveals that western Canadian society has developed during a rare period of unusually abundant water ‘subsidized’ by prior glacier expansion. As the ‘alpine water tap’ closes, much drier times are ahead. Future water availability is likely to become similar to the mid-Holocene when Lake Athabasca dropped 2–4 m below the twentieth-century mean. Regions dependent on high-elevation runoff (i.e., western North America) must prepare to cope with impending water scarcity of magnitude not yet experienced since European settlement. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Wolfe, B.B. Investigator : Edwards, T.W.D. Investigator : Hall, R.I. Investigator : Johnston, J.W. 2017-11-15 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/23082 https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/noaa-templates/data-version-1.0.0/NorthPond.Wolfe.2011.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/data-version-1.0.0/NorthPond.Wolfe.2011.lpd https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/noaa-templates/data-version-1.0.0/NorthPond.Wolfe.2011.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/data-version-1.0.0/NorthPond.Wolfe.2011.lpd English https://www.ncdc.noaa.gov/paleo/study/23082 https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/noaa-templates/data-version-1.0.0/NorthPond.Wolfe.2011.txt https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/data-version-1.0.0/NorthPond.Wolfe.2011.lpd Wolfe, B.B., T.W.D. Edwards, R.I. Hall, and J.W. Johnston2011A 5200-year record of freshwater availability for regions in western North America fed by high-elevation runoffGeophysical Research Letters38L1140410.1029/2011GL047599 START YEAR: 5156 cal yr BP * END YEAR: -31 cal yr BP -110.7119 58.7951 -110.7119 58.7951