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Verfasst von:Wagenbach, Dietmar [VerfasserIn]   i
 Bohleber, Pascal [VerfasserIn]   i
 Preunkert, Susanne [VerfasserIn]   i
Titel:Cold, alpine ice bodies revisited
Titelzusatz:what may we learn from their impurity and isotope content?
Verf.angabe:Dietmar Wagenbach, Pascal Bohleber, Susanne Preunkert
Jahr:2012
Umfang:19 S.
Fussnoten:Published online: 15 Nov 2016 ; Gesehen am 09.07.2018
Titel Quelle:Enthalten in: Geografiska annaler / A
Ort Quelle:Philadelphia, PA : Routledge, Taylor & Francis Group, 1965
Jahr Quelle:2012
Band/Heft Quelle:94(2012), 2, Seite 245-263
ISSN Quelle:1468-0459
Abstract:In the European Alps, ice core studies have been mainly performed in view of the recent man‐made influence on the atmospheric load of aerosol‐related species, while respective investigations on the pre‐industrial aerosol or on stable water isotope‐based climate records remained sparse. We address from a glaciological perspective the specific conditions of Alpine drilling sites and, in particular, the role of depositional noise. Thereby, we refer to two major drilling areas (located in the summit range of Monte Rosa and Mt Blanc massif, respectively) which largely differ in their snow accumulation rate and, hence, in their accessible time scale. A simple scheme considering the seasonality of both, the precipitation‐borne signal and the snow erosion‐controlled net accumulation rate is presented. It shows that water isotope trends are generally more sensitive to distortion by a seasonality effect than recent snow impurities trends, although the influence of a given seasonal accumulation rate cycle on the mean levels of water isotopes and impurities is similar. These findings are illustrated on the decadal and centennial time scale by the inter‐ and intra‐site variability of major ion and water isotope records. The intra‐site comparison includes the discussion of strong water isotope depletions seen some meters above bedrock at low accumulation drilling sites.
DOI:doi:10.1111/j.1468-0459.2012.00461.x
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

Volltext: http://dx.doi.org/10.1111/j.1468-0459.2012.00461.x
 Volltext: https://doi.org/10.1111/j.1468-0459.2012.00461.x
 DOI: https://doi.org/10.1111/j.1468-0459.2012.00461.x
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:Alpine ice cores
 depositional noise
 isotope thermometry
K10plus-PPN:1577394356
Verknüpfungen:→ Zeitschrift

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