noaa-lake-22690 Little Pond, Massachusetts 16,000 Year Leaf Lipid Hydrogen Isotope Data Gao, L.; Huang, Y.; Shuman, B.N.; Oswald, W.; Foster, D.R. Little Pond, Massachusetts 16,000 Year Leaf Lipid Hydrogen Isotope Data 2017-09-19 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/22690 Investigator L. Gao Investigator Y. Huang Investigator B.N. Shuman Investigator W. Oswald Investigator D.R. Foster earth science paleoclimate paleolimnology depth,null,null,centimeter,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology delta 2H,C22 n-alkanoic acid,null,per mil VSMOW,null,paleolimnology,corrected,isotope ratio mass spectrometry,N,corrected for ice volume; measured on behenic acid earth science paleoclimate paleolimnology age,null,null,calendar year before present,null,paleolimnology,null,null,N,null earth science paleoclimate paleolimnology hydrogen isotopes geoscientificInformation 15242 cal yr BP -53 cal yr BP Complete 42.68 42.68 -72.19 -72.19 301 301 Continent North America United States Of America Massachusetts Little Pond Royalston>LATITUDE 42.68>LONGITUDE -72.19 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

325 Broadway, E/NE31

Boulder CO 80305-3328 USA online ASCII Li Gao, Yongsong Huang, Bryan Shuman, W. Wyatt Oswald, David Foster 2017 Quaternary International 449 1-11 10.1016/j.quaint.2017.06.053 http://www.sciencedirect.com/science/article/pii/S1040618216312605

D/H ratios of leaf lipids from lacustrine aquatic macrophytes have been shown to record precipitation dD values, which can reflect precipitation-weighted mean annual temperature (MAT) in the northeastern United States. Here we report a high-resolution hydrogen isotopic record from Little Pond, Massachusetts, USA, which we compare with other paleoclimate data from the region, including a similar dD record from Blood Pond, Massachusetts. Together the two datasets provide a >16 ka record of dD variability in the region, affording new insights into Holocene climate history. First, the long-term trends in dD correlate significantly with regional temperatures inferred from alkenone records from nearby areas of the North Atlantic and lake-level inferred changes in precipitation and evaporation. The long-term dD trends reflect a period of maximum regional warmth at ca. 8-6 ka after the collapse of the Laurentide Ice Sheet. Second, unlike the positive relationship between temperature and dD observed over the long-term and during early events like the Younger Dryas, we find that a series of warm and dry events at 4.9-4.6, 4.2-3.9, 2.9-2.1, and 1.3-1.2 cal kya BP coincide with negative dD excursions from the long trends. These events were likely driven by summer drought dynamics. STUDY NOTES: Hydrogen isotope data of leaf lipids (C22 behenic acid) in lake sediments collected in Little Pond, Massachusetts, for the past 16,000 years.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/massachusetts/littlepond2017dd.txt Formatted Text Data File; Little Pond Leaf Lipid Hydrogen Isotope Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11