Northern Patagonia 1750 Year SST and Terrestrial Input Data Sepúlveda, J.; Pantoja, S.; Hughen, K.A.; Bertrand, S.; Figueroa, D.; León, T.; Drenzek, N.J.; Lange, C.B. Sepúlveda, J. Pantoja, S. Hughen, K.A. Bertrand, S. Figueroa, D. León, T. Drenzek, N.J. Lange, C.B. Little Ice Age (LIA) earth science/paleoclimate/paleoceanography (iron,sediment,null,gram per square meter per year,null,paleoceanography,null,x-ray fluorescence spectroscopy,N,null) earth science/paleoclimate/paleoceanography (organic matter,sediment,null,gram per square meter per year,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (carbon/nitrogen,sediment,null,dimensionless,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (delta 15N,sediment,null,per mil,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (age,null,null,calendar year before present,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (average chain length,n-alkanoic acid,null,dimensionless,null,paleoceanography,null,null,N,null) earth science/paleoclimate/climate reconstructions|paleoceanography (sea surface temperature,alkenone unsaturation index,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (delta 13C,organic matter,null,per mil,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (principal component,null,null,dimensionless,null,paleoceanography,null,null,N,Terrestrial index resulting from the Factor 1 of the principal component analysis for the C/N ratio d13C and d15N) earth science/paleoclimate/paleoceanography (depth,null,null,centimeter,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean (CF7-PC33>LATITUDE -44.3333>LONGITUDE -72.9692) A high-resolution multi-proxy study including the elemental and isotopic composition of bulk organic matter, land plant-derived biomarkers, and alkenone-based sea-surface temperature (SST) from a marine sedimentary record obtained from the Jacaf Fjord in northern Chilean Patagonia (~44°20'S) provided a detailed reconstruction of continental runoff, precipitation, and summer SST spanning the last 1750 yr. We observed two different regimes of climate variability in our record: a relatively dry/warm period before 900 cal yr BP (lower runoff and average SST 1°C warmer than present day) and a wet/cold period after 750 cal yr BP (higher runoff and average SST 1°C colder than present day). Relatively colder SSTs were found during 750-600 and 450-250 cal yr BP, where the latter period roughly corresponds to the interval defined for the Little Ice Age (LIA). Similar climatic swings have been observed previously in continental and marine archives of the last two millennia from central and southern Chile, suggesting a strong latitudinal sensitivity to changes in the Southern Westerly Winds, the main source of precipitation in southern Chile, and validating the regional nature of the LIA. Our results reveal the importance of the Chilean fjord system for recording climate changes of regional and global significance. STUDY NOTES: High-resolution multi-proxy fjord marine sediment data for the last 1750 years from northern Chilean Patagonia. Data include the elemental and isotopic composition of bulk organic matter, land plant-derived biomarkers, and alkenone-based sea-surface temperature (SST). These data provide a history of continental runoff, precipitation, and summer SST spanning the last 1750 yr. Core CF7-PC33, Jacaf Fjord, northern Patagonia, Chile: 44°20.00'S, 72°58.15'W, 510 m depth NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Sepúlveda, J. Investigator : Pantoja, S. Investigator : Hughen, K.A. Investigator : Bertrand, S. Investigator : Figueroa, D. Investigator : León, T. Investigator : Drenzek, N.J. Investigator : Lange, C.B. 2012-04-12 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/12898 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/sepulveda2009/sepulveda2009.xls https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/sepulveda2009/sepulveda2009.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/sepulveda2009/sepulveda2009.xls https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/sepulveda2009/sepulveda2009.txt English https://www.ncdc.noaa.gov/paleo/study/12898 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/sepulveda2009/sepulveda2009.xls https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/sepulveda2009/sepulveda2009.txt Sepúlveda, J., S. Pantoja, K.A. Hughen, S. Bertrand, D. Figueroa, T. León, N.J. Drenzek, and C. Lange. 2009. Late Holocene sea-surface temperature and precipitation variability in northern Patagonia, Chile (Jacaf Fjord, 44°S). Quaternary Research, Vol. 72, Issue 3, pp. 400-409, November 2009. http://dx.doi.org/10.1016/j.yqres.2009.06.010 START YEAR: 1738 cal yr BP * END YEAR: 68 cal yr BP -72.9692 -44.3333 -72.9692 -44.3333