noaa-icecore-20367 Alto dell'Ortles Glacier Ice Core Age Models Gabrielli, P. Alto dell'Ortles Glacier Ice Core Age Models 2016-11-17 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/20367 Investigator P. Gabrielli earth science paleoclimate ice cores ice age,null,percentile,calendar year before present,null,ice cores,null,null,N,5th percentile; present defined as 2012 AD earth science paleoclimate ice cores ice age,null,percentile,calendar year before present,null,ice cores,null,null,N,95th percentile; present defined as 2012 AD earth science paleoclimate ice cores density,bulk ice,null,kilogram per cubic meter,null,ice cores,null,null,N,null earth science paleoclimate ice cores 3H,bulk ice,null,tritium unit,null,ice cores,null,null,N,null earth science paleoclimate instrumental sample identification,null,null,null,null,instrumental,null,null,C,point ID earth science paleoclimate ice cores ice age,null,null,calendar year before present,null,ice cores,null,null,N,present defined as 2012 AD earth science paleoclimate ice cores inclination,bulk ice,null,millimeter,null,ice cores,null,null,N,cumulative displacement A earth science paleoclimate ice cores depth,null,null,meter,null,ice cores,null,null,N,depth water equivalent earth science paleoclimate ice cores ice age,null,null,calendar year before present,null,ice cores,null,null,N,calendar years before 2012 AD earth science paleoclimate ice cores 3H,bulk ice,unspecified margin of error,tritium unit,null,ice cores,null,null,N,null earth science paleoclimate instrumental bedrock elevation,null,null,meter,null,instrumental,null,null,N,meters above mean sea level earth science paleoclimate ice cores inclination,bulk ice,null,millimeter,null,ice cores,null,null,N,cumulative displacement B earth science paleoclimate ice cores depth,null,null,meter,null,ice cores,null,null,N,depth in reference core #2 earth science paleoclimate ice cores sample identification,null,null,null,null,ice cores,null,null,C,core number earth science paleoclimate ice cores red intensity,bulk ice,null,dimensionless,null,ice cores,null,null,N,null earth science paleoclimate ice cores horizontal displacement,null,null,meter,null,ice cores,null,null,N,null earth science paleoclimate ice cores green intensity,bulk ice,null,dimensionless,null,ice cores,null,null,N,null earth science paleoclimate instrumental longitude,null,null,meter,null,instrumental,null,null,N,UTM X WGS 1984 (Zone 32 N) earth science paleoclimate instrumental ice sheet elevation,null,null,meter,null,instrumental,null,null,N,meters above mean sea level earth science paleoclimate ice cores depth,null,null,meter,null,ice cores,null,null,N,null earth science paleoclimate ice cores beta activity,bulk ice,null,disintegration per minute per kilogram,null,ice cores,null,null,N,null earth science paleoclimate ice cores beta activity,bulk ice,one standard deviation,disintegration per minute per kilogram,null,ice cores,null,null,N,null earth science paleoclimate ice cores density,bulk ice,null,kilogram per cubic meter,null,ice cores,corrected,null,N,ice corrected earth science paleoclimate ice cores blue intensity,bulk ice,null,dimensionless,null,ice cores,null,null,N,null earth science paleoclimate instrumental latitude,null,null,meter,null,instrumental,null,null,N,UTM Y WGS 1984 (Zone 32 N) earth science paleoclimate ice core radiogenic isotopes earth science paleoclimate ice core physical properties earth science paleoclimate ice core age control geoscientificInformation 16895 cal yr BP 0 cal yr BP Complete 46.5089 46.5089 10.545 10.545 3859 3859 Continent Europe Southern Europe Italy Alto dell'Ortles>LATITUDE 46.5089>LONGITUDE 10.545 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 Paolo Gabrielli, Carlo Barbante, Giuliano Bertagna, Michele Bertó, Daniel Binder, Alberto Carton, Luca Carturan, Federico Cazorzi, Giulio Cozzi, Giancarlo Dalla Fontana, Mary Davis, Fabrizio De Blasi, Roberto Dinale, Gianfranco Dragà, Giuliano Dreossi, Daniela Festi, Massimo Frezzotti, Jacopo Gabrieli, Stephan P. Galos, Patrick Ginot, Petra Heidenwolf, Theo M. Jenk, Natalie Kehrwald, Donald Kenny, Olivier Magand, Volkmar Mair, Vladimir Mikhalenko, Ping Nan Lin, Klaus Oeggl, Gianni Piffer, Mirko Rinaldi, Ulrich Schotterer, Margit Schwikowski, Roberto Seppi, Andrea Spolaor, Barbara Stenni, David Tonidandel, Chiara Uglietti, Victor Zagorodnov, Thomas Zanoner, and Piero Zennaro 2016 The Cryosphere 10 6 2779-2797 10.5194/tc-10-2779-2016 http://www.the-cryosphere.net/10/2779/2016/

In 2011 four ice cores were extracted from the summit of Alto dell'Ortles (3859 m), the highest glacier of South Tyrol in the Italian Alps. This drilling site is located only 37 km southwest from where the Tyrolean Iceman, ~5.3 kyrs old, was discovered emerging from the ablating ice field of Tisenjoch (3210 m, near the Italian-Austrian border) in 1991. The excellent preservation of this mummy suggested that the Tyrolean Iceman was continuously embedded in prehistoric ice and that additional ancient ice was likely preserved elsewhere in South Tyrol. Dating of the ice cores from Alto dell'Ortles based on 210Pb, tritium, beta activity and 14C determinations, combined with an empirical model (COPRA), provides evidence for a chronologically ordered ice stratigraphy from the modern glacier surface down to the bottom ice layers with an age of ~7 kyrs, which confirms the hypothesis. Our results indicate that the drilling site has continuously been glaciated on frozen bedrock since ~7 kyrs BP. Absence of older ice on the highest glacier of South Tyrol is consistent with the removal of basal ice from bedrock during the Northern Hemisphere Climatic Optimum (6-9 kyrs BP), the warmest interval in the European Alps during the Holocene. Borehole inclinometric measurements of the current glacier flow combined with surface ground penetration radar (GPR) measurements indicate that, due to the sustained atmospheric warming since the 1980s, an acceleration of the glacier Alto dell'Ortles flow has just recently begun. Given the stratigraphic-chronological continuity of the Mt. Ortles cores over millennia, it can be argued that this behaviour has been unprecedented at this location since the Northern Hemisphere Climatic Optimum. STUDY NOTES: Age Models and supporting information for the Alto dell'Ortles ice cores in the Tyrolean Alps, Italy

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/trop/ortles/ortles2016incl.txt Data File; Alto dell'Ortles Glacier Borehole Inclination GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/trop/ortles/ortles2016flow.txt Data File; Alto dell'Ortles Glacier Flow Model Results GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/trop/ortles/ortles2016rgb.txt Data File; Alto dell'Ortles Glacier RGB Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/trop/ortles/ortles2016age-core2.txt Data File; Alto dell'Ortles Glacier Core 2 Age Model GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/trop/ortles/ortles2016age.txt Data File; Alto dell'Ortles Glacier Core 1 Age Model GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/trop/ortles/ortles2016dtm.txt Data File; Alto dell'Ortles Glacier Digital Terrain Models GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/trop/ortles/ortles2016beta.txt Data File; Alto dell'Ortles Glacier Beta Emissions GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/trop/ortles/ortles2016age-core3.txt Data File; Alto dell'Ortles Glacier Core 3 Age Model GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/trop/ortles/ortles2016h3.txt Data File; Alto dell'Ortles Glacier Radionuclides Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/trop/ortles/ortles2016dens.txt Data File; Alto dell'Ortles Glacier Density USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11