noaa-icecore-26750 Weissfluhjoch, Swiss Alps 2017 Snowpit Major Ions and Trace Element Data Avak, S.E.; Trachsel, J.C.; Edebeli, J.; Brutsch, S.; Bartels-Rausch, T.; Schneebeli, M.; Schwikowski, M.; Eichler, A. Weissfluhjoch, Swiss Alps 2017 Snowpit Major Ions and Trace Element Data 2019-06-19 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/26750 Investigator S.E. Avak Investigator J.C. Trachsel Investigator J. Edebeli Investigator S. Brutsch Investigator T. Bartels-Rausch Investigator M. Schneebeli Investigator M. Schwikowski Investigator A. Eichler earth science paleoclimate ice core chemistry geoscientificInformation 2016 AD 2017 AD -66 cal yr BP -67 cal yr BP Complete 46.82972 46.82972 9.80917 9.80917 2536 2536 Continent Europe Western Europe Switzerland Weissfluhjoch>LATITUDE 46.82972>LONGITUDE 9.80917 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 Sven E. Avak, Jurg C. Trachsel, Jacinta Edebeli, Sabina Brutsch, Thorsten Bartels-Rausch, Martin Schneebeli, Margit Schwikowski, Anja Eichler 2019 Journal of Geophysical Research: Earth Surface 10.1029/2019JF005026 https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2019JF005026

Understanding the impact of melting on the preservation of atmospheric compounds in high-Alpine snow and glacier ice is crucial for future reconstruction of past atmospheric conditions. However, detailed studies investigating melt-related changes of such proxy information are rare. Here, we present a series of five snow pit profiles of 6 major ions and 34 trace elements at Weissfluhjoch, Switzerland, collected between January and June 2017. Atmospheric composition was preserved during the cold season while melting towards the summer resulted in preferential loss of certain species from the snowpack or enrichment at the base of the snowpack. Increasing mobilization of major ions with meltwater (NH4+ < Cl- ~ Na+ < NO3- ~ Ca2+ ~ SO42-) can be related to their stronger enrichment at ice crystal surfaces during snow metamorphism. Results for trace elements show that less abundant elements such as Ce, Eu, La, Mo, Nd, Pb, Pr, Sb, Sc, Sm, U, and W were best preserved and may still serve as tracers to reconstruct past natural and anthropogenic atmospheric emissions from melt-affected snow pit and ice core records. The obtained elution behavior matches the findings from another high-Alpine site (upper Grenzgletscher) for major ions and the large majority of investigated trace elements. Both studies indicate that water solubility and location at the microscopic scale are likely to determine the relocation behavior with meltwater and also suggest that the observed species-dependent preservation from melting snow and ice is representative for the Alpine region, reflecting Central European atmospheric aerosol composition. STUDY NOTES: Major ions and trace elements data from five snow pits at the Weissfluhjoch, Switzerland

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/trop/weissfluhjoch/weissfluhjoch2017snowpit.txt NOAA Template File; Weissfluhjoch Snowpit Major Ions and Trace Element Data USA/NOAA DIF Version 9.8.4 2019-06-21 2019-06-21