Little Bahama Bank 900 Year Sediment Grain Size Data van Hengstum, P.J.; Donnelly, J.P.; Toomey, M.R.; Albury, N.A.; Lane, P.; Kakuk, B. van Hengstum, P.J. Donnelly, J.P. Toomey, M.R. Albury, N.A. Lane, P. Kakuk, B. Hurricanes and Tropical Cyclones Reconstruction earth science/paleoclimate/paleoceanography (sand,sediment,null,dimensionless,null,paleoceanography,normalized,null,N,null) earth science/paleoclimate/paleoceanography (age,null,null,year Common Era,null,paleoceanography,null,null,N,median age) earth science/paleoclimate/paleoceanography (sand,sediment,null,weight percent,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (age,null,95% confidence interval upper bound,year Common Era,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (age,null,null,year Common Era,null,paleoceanography,averaged,null,N,mean age) earth science/paleoclimate/paleoceanography (silt,sediment,null,weight percent,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (depth,null,null,centimeter,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (age,null,95% confidence interval lower bound,year Common Era,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleocean (Thatchpoint Bluehole>LATITUDE 26.323369>LONGITUDE -77.293362) How climate controls hurricane variability has critical implications for society is not well understood. In part, our understanding is hampered by the short and incomplete observational hurricane record. Here we present a synthesis of intense-hurricane activity from the western North Atlantic over the past two millennia, which is supported by a new, exceptionally well-resolved record from Salt Pond, Massachusetts (USA). At Salt Pond, three coarse grained event beds deposited in the historical interval are consistent with severe hurricanes in 1991 (Bob), 1675, and 1635 C.E., and provide modern analogs for 32 other prehistoric event beds. Two intervals of heightened frequency of event bed deposition between 1400 and 1675 C.E. (10 events) and 150 and 1150 C.E. (23 events), represent the local expression of coherent regional patterns in intense-hurricane-induced event beds. Our synthesis indicates that much of the western North Atlantic appears to have been active between 250 and 1150 C.E., with high levels of activity persisting in the Caribbean and Gulf of Mexico until 1400 C.E. This interval was one with relatively warm sea surface temperatures (SSTs) in the main development region (MDR). A shift in activity to the North American east coast occurred ca. 1400 C.E., with more frequent severe hurricane strikes recorded from The Bahamas to New England between 1400 and 1675 C.E. A warm SST anomaly along the western North Atlantic, rather than within the MDR, likely contributed to the later active interval being restricted to the east coast. STUDY NOTES: Grainsize data from Thatchpoint Bluehole, Abaco, Bahamas, van Hengstum et al. (2014), with updated age model as presented in Donnelly et al. (2015). NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : van Hengstum, P.J. Investigator : Donnelly, J.P. Investigator : Toomey, M.R. Investigator : Albury, N.A. Investigator : Lane, P. Investigator : Kakuk, B. 2015-06-05 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/18815 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/vanhengstum2014/thatchpoint2014.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/vanhengstum2014/thatchpoint2014.txt English https://www.ncdc.noaa.gov/paleo/study/18815 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/vanhengstum2014/thatchpoint2014.txt Peter J. van Hengstum, Jeffrey P. Donnelly, Michael R. Toomey, Nancy A. Albury, Philip Lane, Brian Kakuk2014Heightened hurricane activity on the Little Bahama Bank from 1350 to 1650 ADContinental Shelf Research86103-11510.1016/j.csr.2013.04.032http://www.sciencedirect.com/science/article/pii/S0278434313001325 Jeffrey P. Donnelly, Andrea D. Hawkes, Philip Lane, Dana MacDonald, Bryan N. Shuman, Michael R. Toomey, Peter J. van Hengstum, Jonathan D. Woodruff2015Climate forcing of unprecedented intense-hurricane activity in the last 2000 yearsEarth's Future3249-6510.1002/2014EF000274http://onlinelibrary.wiley.com/doi/10.1002/2014EF000274/full START YEAR: 1061 AD * END YEAR: 1998 AD -77.293362 26.323369 -77.293362 26.323369