Výsledky vyhledávání - "D. Wagenbach"

Akademický článek

Year-round record of bulk and size-segregated aerosol composition in central Antarctica (Concordia site) – Part 2: Biogenic sulfur (sulfate and methanesulfonate) aerosol

Autor: M. Legrand, S. Preunkert, R. Weller, L. Zipf, C. Elsässer, S. Merchel, G. Rugel, D. Wagenbach

Publikováno v: Atmospheric Chemistry and Physics, Vol 17, Pp 14055-14073 (2017)

Multiple year-round (2006–2015) records of the bulk and size-segregated composition of aerosol were obtained at the inland site of Concordia located in East Antarctica. The well-marked maximum of non-sea-salt sulfate (nssSO4) in January (100 ±

Externí odkaz: https://doaj.org/article/3f6bb570ecf04294a4c8363b3ccf58e1

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Akademický článek

Year-round records of bulk and size-segregated aerosol composition in central Antarctica (Concordia site) – Part 1: Fractionation of sea-salt particles

Autor: M. Legrand, S. Preunkert, E. Wolff, R. Weller, B. Jourdain, D. Wagenbach

Publikováno v: Atmospheric Chemistry and Physics, Vol 17, Pp 14039-14054 (2017)

Multiple year-round records of bulk and size-segregated composition of aerosol were obtained at the inland site of Concordia located at Dome C in East Antarctica. In parallel, sampling of acidic gases on denuder tubes was carried out to quantify t

Externí odkaz: https://doaj.org/article/7c51fcfc6c794ee7aff1170c3f401abc

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Akademický článek

Simulating ice core 10Be on the glacial–interglacial timescale

Autor: C. Elsässer, D. Wagenbach, I. Levin, A. Stanzick, M. Christl, A. Wallner, S. Kipfstuhl, I. K. Seierstad, H. Wershofen, J. Dibb

Publikováno v: Climate of the Past, Vol 11, Iss 2, Pp 115-133 (2015)

10Be ice core measurements are an important tool for paleoclimate research, e.g., allowing for the reconstruction of past solar activity or changes in the geomagnetic dipole field. However, especially on multi-millennial timescales, the share of prod

Externí odkaz: https://doaj.org/article/4bd4db04215c41c1b58ad8307174e94f

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Akademický článek

On the variability of atmospheric 222Rn activity concentrations measured at Neumayer, coastal Antarctica

Autor: R. Weller, I. Levin, D. Schmithüsen, M. Nachbar, J. Asseng, D. Wagenbach

Publikováno v: Atmospheric Chemistry and Physics, Vol 14, Iss 8, Pp 3843-3853 (2014)

We report on continuously measured 222Rn activity concentrations in near-surface air at Neumayer Station in the period 1995–2011. This 17-year record showed no long-term trend and has overall mean ± standard deviation of (0.019 ± 0.012) Bq m−3.

Externí odkaz: https://doaj.org/article/704160ecbb8a4d9691fda8ff707a4f4f

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Akademický článek

Characterization of long-term and seasonal variations of black carbon (BC) concentrations at Neumayer, Antarctica

Autor: R. Weller, A. Minikin, A. Petzold, D. Wagenbach, G. König-Langlo

Publikováno v: Atmospheric Chemistry and Physics, Vol 13, Iss 3, Pp 1579-1590 (2013)

Continuous black carbon (BC) observations were conducted from 1999 through 2009 by an Aethalometer (AE10) and from 2006 through 2011 by a Multi-Angle Absorption Photometer (MAAP) at Neumayer Station (NM) under stringent contamination control. Conside

Externí odkaz: https://doaj.org/article/00082e6e6ff64b129533f71e40ab60c0

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Akademický článek

Characterization of the inter-annual, seasonal, and diurnal variations of condensation particle concentrations at Neumayer, Antarctica

Autor: R. Weller, A. Minikin, D. Wagenbach, V. Dreiling

Publikováno v: Atmospheric Chemistry and Physics, Vol 11, Iss 24, Pp 13243-13257 (2011)

Continuous condensation particle (CP) observations were conducted from 1984 through 2009 at Neumayer Station under stringent contamination control. During this period, the CP concentration (median 258 cm−3) showed no significant long term trend but

Externí odkaz: https://doaj.org/article/98e6233fa85f48ca8d9b5ad6580e9262

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Akademický článek

First investigations of an ice core from Eisriesenwelt cave (Austria)

Autor: B. May, C. Spötl, D. Wagenbach, Y. Dublyansky, J. Liebl

Publikováno v: The Cryosphere, Vol 5, Iss 1, Pp 81-93 (2011)

Investigations into the genesis and dynamical properties of cave ice are essential for assessing the climate significance of these underground glaciers. We drilled an ice core through a 7.1 m-thick ice body filling a large cavern of the dynamic ice c

Externí odkaz: https://doaj.org/article/1af65aa73f504ceebc805ca0f5d3695c

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