Zobrazeno 1 - 10
of 81
pro vyhledávání: '"BERNHARD STAUFFER"'
Publikováno v:
Antarctic Record, Vol 45, Iss 2, Pp 171-184 (2001)
Ice core analyses start with the processing of ice cores. Especially for chemical analyses, pre-treatments for introducing the samples to the measuring instruments without contamination is essential. Part of processing can be carried out under a norm
Externí odkaz:
https://doaj.org/article/aa5fc37f548b423eb1f7a991e1b0e4fb
Autor:
Bernhard Stauffer, Martine de Angelis, Silvia Becagli, Emiliano Castellano, Matthias Bigler, Margareta E Hansson, Francesco Rugi, Hubertus Fischer, Roberto Udisti, Jørgen Peder Steffensen, Mirko Severi, Rita Traversi, F. Marino
Publikováno v:
Environmental Science & Technology. 43:8737-8743
A detailed ionic component record was performed on EPICA Dome C ice core (East Antarctica) to a depth of 3190 m using Ion Chromatography and Fast Ion Chromatography (FIC). At depths greater than 2800 m, the sulfate profile shows intense, sharp spikes
Autor:
Hubertus Fischer, Blandine Bellier, Jakob Schwander, Urs Siegenthaler, Jean-Marc Barnola, Dominique Raynaud, Thomas F. Stocker, Eric Monnin, Bernhard Stauffer, David L. Morse, Eric J. Steig, Kenji Kawamura
Publikováno v:
EPIC3Earth and planetary science letters, 224, pp. 45-54, ISSN: 0012-821X
High resolution records of atmospheric CO2 concentration during the Holocene are obtained from the Dome Concordia and Dronning Maud Land (Antarctica) ice cores. These records confirm that the CO2 concentration varied between 260 and 280 ppmv in the H
Autor:
Jérôme Chappellaz, Jean-Marc Barnola, Bernhard Stauffer, Jacqueline Flückiger, Jakob Schwander, Eric Monnin
Publikováno v:
Annals of Glaciology. 35:202-208
Analyses of air extracted from polar ice cores are the most straightforward method of reconstructing the atmospheric concentrations of greenhouse gases and their variations for past climatic epochs. These measurements show that the concentration of t
Autor:
Bernhard Stauffer
Publikováno v:
Physik in unserer Zeit. 32:106-113
Die Analysen von zwei Bohrkernen im grönländischen Eis haben unser Wissen über Klimaschwankungen und deren mögliche Ursachen stark erweitert. Die δ18 O-Messreihe zeigt, dass der Übergang von der letzten Eiszeit zur Nacheiszeit in drastischen Sp
Autor:
Bernhard Stauffer, Andreas Indermühle, J. M. Barnola, Jérôme Chappellaz, Dominique Raynaud, Thomas Blunier
Publikováno v:
Quaternary Science Reviews. 19:9-17
Analysis of air trapped in polar ice provides the most direct information on the natural variability of Greenhouse Trace Gases (GTG). It gives the context for the dramatic change in their atmospheric concentrations induced by anthropogenic activities
Autor:
Jürg Tschumi, Bernhard Stauffer
Publikováno v:
Journal of Glaciology. 46:45-53
Analysis of air extracted from bubbles of polar ice showed the anthropogenic increase of atmospheric CO2 concentration during the past few hundred years (preindustrial concentration 280 ppmv) and, unexpectedly, that the concentration also increased d
Autor:
Bernhard Stauffer, Hans G. Junghans, Dietmar Wagenbach, Matthias Bigler, Stefan Sommer, Regine Röthlisberger, Manuel A. Hutterli
Publikováno v:
Environmental Science & Technology. 34:338-342
The very successful application of a CFA (Continuous flow analysis) system in the GRIP project (Greenland Ice Core Project) for high-resolution ammonium, calcium, hydrogen peroxide, and formaldehyde measurements along a deep ice core led to further d
Autor:
Bernhard, Stauffer
Publikováno v:
Memoirs of National Institute of Polar Research. Special issue. 52:158-171
In the central parts of the large polar ice sheets ice is formed by dry sintering of cold snow. The analyses of air extracted from bubbles of well dated ice samples from such locations, allow to determine the composition of the atmosphere at the time
Autor:
J. M. Barnola, Jakob Schwander, M. Anklin, Bernhard Stauffer, A. Fuchs, D. Raynaud, J. Tschumi
Publikováno v:
Anklin, M.; Schwander, J.; Stauffer, B.; Tschumi, J.; Fuchs, A.; Barnola, J.M.; Raynaud, D. (1997). CO2 record between 40 and 8 kyr B.P. from the Greenland Ice Core Project ice core. Journal of Geophysical Research: Oceans, 102(C12), pp. 26539-26545. American Geophysical Union 10.1029/97JC00182
CO2 ice-core records show an increase in the atmospheric concentration of 80–100 parts per million by volume (ppmv) from the last glacial maximum (LGM) to the early Holocene. We present CO2 measurements performed on an ice core from central Greenla