Výsledky vyhledávání - "Chiara Uglietti"

Climate change threatens archaeologically significant ice patches: insights into their age, internal structure, mass balance and climate sensitivity

Autor: Chiara Uglietti, Rune S. Ødegård, Trond Eiken, Atle Nesje, Margit Schwikowski, Liss M. Andreassen, Ketil Isaksen

Publikováno v: The Cryosphere, Vol 11, Iss 1, Pp 17-32 (2017)

Despite numerous spectacular archaeological discoveries worldwide related to melting ice patches and the emerging field of glacial archaeology, governing processes related to ice patch development during the Holocene and their sensitivity to climate

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a6b4b8426c0d0c3fd6ea8ddd258450e
https://doi.org/10.5194/tc-11-17-2017

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Extraction of Dissolved Organic Carbon from Glacier Ice for Radiocarbon Analysis

Autor: Chiara Uglietti, Margit Schwikowski, Ling Fang, Theo M. Jenk, J Schindler, Sönke Szidat

Publikováno v: Fang, L; Schindler, J; Jenk, T M; Uglietti, Chiara; Szidat, Sönke; Schwikowski, Margit (2019). Extraction of Dissolved Organic Carbon from Glacier Ice for Radiocarbon Analysis. Radiocarbon, 61(03), pp. 681-694. Arizona Board of Regents, University of Arizona 10.1017/RDC.2019.36

Alpine glaciers are valuable archives for the reconstruction of human impact on the environment. Besides dating purposes, measurement of radiocarbon (14C) content provides a powerful tool for long-term source apportionment studies on the carbonaceous

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe6d6b92e9f59ac6c159e4e3d62af901

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Online coupling of pure O2 thermo-optical methods – 14C AMS for source apportionment of carbonaceous aerosols

Autor: Yan-Lin Zhang, Michael Battaglia, Gary Salazar, Marc Luginbühl, Sönke Szidat, V.G. Ciobanu, Konstantinos Agrios, Chiara Uglietti, Matthias Vonwiller

Publikováno v: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 361:288-293

This paper reports on novel separation methods developed for the direct determination of 14C in organic carbon (OC) and elemental carbon (EC), two sub-fractions of total carbon (TC) of atmospheric air particulate matter. Until recently, separation of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9148202f78e4eae99e0048f301785235
https://doi.org/10.1016/j.nimb.2015.06.008

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Widespread pollution of the South American atmosphere predates the industrial revolution by 240 y

Autor: Colin A. Cooke, Chiara Uglietti, Paul Vallelonga, Lonnie G. Thompson, Paolo Gabrielli

Publikováno v: Proceedings of the National Academy of Sciences. 112:2349-2354

In the Southern Hemisphere, evidence for preindustrial atmospheric pollution is restricted to a few geological archives of low temporal resolution that record trace element deposition originating from past mining and metallurgical operations in South

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bdde4ca00b634bd8c1cb83282a6634c6
https://doi.org/10.1073/pnas.1421119112

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Large variability of trace element mass fractions determined by ICP-SFMS in ice core samples from worldwide high altitude glaciers

Autor: John W. Olesik, Anthony Lutton, Chiara Uglietti, Paolo Gabrielli, Lonnie G. Thompson

Publikováno v: Applied Geochemistry. 47:109-121

We quantified leaching and mass fractions of trace elements in melted acidified ice core samples measured by Inductively Coupled Plasma Sector Field Mass Spectrometry (ICP-SFMS). This assessment was conducted using nine ice core sections retrieved fr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b9cd5aba70ea28f2b57f422471fcd69c
https://doi.org/10.1016/j.apgeochem.2014.05.019

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