noaa-ocean-23171 Southwest Florida 1,000 Year Paleotempestology Grain Size Data Ercolani, C.; Muller, J.; Collins, J.; Savarese, M.; Squiccimara, L. Southwest Florida 1,000 Year Paleotempestology Grain Size Data 2017-11-28 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/23171 Investigator C. Ercolani Investigator J. Muller Investigator J. Collins Investigator M. Savarese Investigator L. Squiccimara earth science paleoclimate climate reconstructions|paleoceanography tropical cyclone,null,null,count per century,null,climate reconstructions|paleoceanography,null,null,N,Intense Hurricanes (tempestites) per 100 years (>=4.44%) earth science paleoclimate climate reconstructions|paleoceanography depth,null,null,centimeter,null,climate reconstructions|paleoceanography,null,null,N,null earth science paleoclimate climate reconstructions|paleoceanography age,null,null,calendar year before present,null,climate reconstructions|paleoceanography,null,null,N,Radiocarbon and Pb210 from peat-roots-shells earth science paleoclimate paleoceanography water content,null,null,percent,null,paleoceanography,null,null,N,Bulk lagoonal wet sediment earth science paleoclimate paleoceanography gravel,null,null,percent,null,paleoceanography,null,null,N,Bulk lagoonal wet sediment >2 mm earth science paleoclimate paleoceanography calcium carbonate,null,null,percent,null,paleoceanography,null,null,N,Bulk lagoonal wet sediment earth science paleoclimate paleocean geochemistry earth science paleoclimate paleocean physical properties earth science paleoclimate paleocean reconstruction geoscientificInformation Hurricanes and Tropical Cyclones Reconstruction 1026 cal yr BP 1 cal yr BP Complete 26.0793 26.0794 -81.7944 -81.7943 -1 -1 Continent North America United States Of America Florida Island Bay 1206-22>LATITUDE 26.0794>LONGITUDE -81.7944 Continent North America United States Of America Florida Island Bay 1206-23>LATITUDE 26.0793>LONGITUDE -81.7943 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 Christian Ercolani, Joanne Muller, Jennifer Collins, Michael Savarese, Louis Squiccimara 2015 Quaternary Science Reviews 126 17-25 10.1016/j.quascirev.2015.08.008 http://www.sciencedirect.com/science/article/pii/S0277379115300755

Recent research has proposed that human-induced sea surface temperature (SST) warming has led to an increase in the intensity of hurricanes over the past 30 years. However, this notion has been challenged on the basis that the instrumental record is too short and unreliable to reveal long-term trends in hurricane activity. This study addresses this limitation by investigating hurricane-induced overwash deposits (paleotempestites) behind a barrier island in Naples, FL, USA. Paleotempestologic proxies including grain size, percent calcium carbonate, and fossil shells species were used to distinguish overwash events in two sediment cores spanning the last one thousand years. Two prominent paleotempestites were observed in the top 20 cm of both cores: the first identified as Hurricane Donna in 1960 whereas an older paleotempestite (1900-1930) could represent one of three documented storms in the early 1900s. An active period of hurricane overwash from 1000 to 500 yrs. BP and an inactive period from 500 to 150 yrs. BP correlate with reconstructed SSTs from the Main Development Region (MDR) of the North Atlantic Ocean. We observe an increased number of paleotempestites when MDR SSTs are warmer, coinciding with the Medieval Warm Period, and very few paleotempestites when MDR SSTs are cooler, coinciding with the Little Ice Age. Results from this initial Southwest Florida study indicate that MDR SSTs have been a key long-term climate driver of intense Southwest Florida hurricane strikes. STUDY NOTES: Sediment physical properties (moisture content, % grain size >2mm) and geochemistry (percent carbonate) data and interpreted Intense Hurricane frequency from two sediment cores collected in Island Bay, Keewaydin Island, Southwest Florida

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/ercolani2015/island-bay1206-23.txt NOAA Template File; Island Bay Core 1206-23 Tempestite Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/ercolani2015/island-bay1206-22.txt NOAA Template File; Island Bay Core 1206-22 Tempestite Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11