noaa-ocean-23190 Labrador Sea 645 Year Coralline Algae Time Series Moore, G.W.K.; Halfar, J.; Majeed, H.; Adey, W.; Kronz, A. Labrador Sea 645 Year Coralline Algae Time Series 2017-11-22 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/23190 Investigator G.W.K. Moore Investigator J. Halfar Investigator H. Majeed Investigator W. Adey Investigator A. Kronz earth science paleoclimate corals and sclerosponges proxy composite,Clathromorphum compactum,null,dimensionless,null,corals and sclerosponges,composited,null,N,averaged annual Mg/Ca and growth increments anomalies earth science paleoclimate corals and sclerosponges age,null,null,year Common Era,null,corals and sclerosponges,null,null,N,null earth science paleoclimate paleocean other geoscientificInformation 1365 AD 2010 AD 585 cal yr BP -60 cal yr BP Complete 55.3983 55.3983 -59.8467 -59.8467 -16 -16 Ocean Atlantic Ocean North Atlantic Ocean Kingitok Island Ki1>LATITUDE 55.3983>LONGITUDE -59.8467 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 G.W.K. Moore, J. Halfar, H. Majeed, W. Adey, A. Kronz 2017 Scientific Reports 40861 7 10.1038/srep40861 https://www.nature.com/articles/srep40861

North Atlantic sea surface temperatures experience variability with a periodicity of 60-80 years that is known as the Atlantic Multidecadal Oscillation (AMO). It has a profound imprint on the global climate system that results in a number of high value societal impacts. However the industrial period, i.e. the middle of the 19th century onwards, contains only two full cycles of the AMO making it difficult to fully characterize this oscillation and its impact on the climate system. As a result, there is a clear need to identify paleoclimate records extending into the pre-industrial period that contain an expression of the AMO. This is especially true for extratropical marine paleoclimate proxies where such expressions are currently unavailable. Here we present an annually resolved coralline algal time series from the northwest Atlantic Ocean that exhibits multidecadal variability extending back six centuries. The time series contains a statistically significant trend towards higher values, i.e. warmer conditions, beginning in the 19th century that coincided with an increase in the time series' multidecadal power. We argue that these changes are associated with a regional climate reorganization involving an amplification of the AMO that coincided with onset of the industrial-era warming.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/moore2017/labrador2017algae.txt NOAA Template File; Labrador Sea Coralline Algae Time Series USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11