scholarly journals Warm winter spells in the Swiss Alps: Strong heat waves in a cold season? A study focusing on climate observations at the Saentis high mountain site

2005 ◽  
Vol 32 (1) ◽  
Author(s):  
Martin Beniston
Keyword(s):  
Heat Waves ◽  
Cold Season ◽  
Swiss Alps ◽  
High Mountain ◽  
Warm Winter ◽  
Mountain Site

PM 1 variability and transport conditions between an urban coastal area and a high mountain site during the cold season

2015 ◽  
Vol 118 ◽  
pp. 127-134 ◽  
Author(s):  
J.F. Nicolás ◽  
N. Galindo ◽  
E. Yubero ◽  
J. Crespo ◽  
R. Soler
Keyword(s):  
Coastal Area ◽  
Cold Season ◽  
High Mountain ◽  
Mountain Site

Characterization of aerosol acidity at a high mountain site in central eastern China

2012 ◽  
Vol 51 ◽  
pp. 11-20 ◽  
Author(s):  
Yang Zhou ◽  
Likun Xue ◽  
Tao Wang ◽  
Xiaomei Gao ◽  
Zhe Wang ◽  
...  
Keyword(s):  
Eastern China ◽  
High Mountain ◽  
Aerosol Acidity ◽  
Mountain Site ◽  
Central Eastern

Supplementary material to "Glacier-permafrost relations in a high-mountain environment: 5 decades of kinematic monitoring at the Gruben site, Swiss Alps"

2021 ◽  
Author(s):  
Isabelle Gärtner-Roer ◽  
Nina Brunner ◽  
Reynald Delaloye ◽  
Wilfried Haeberli ◽  
Andreas Kääb ◽  
...  
Keyword(s):  
Swiss Alps ◽  
High Mountain ◽  
Mountain Environment ◽  
Supplementary Material

scholarly journals Evidence of elevation-dependent warming from the Chinese Tian Shan

2021 ◽  
Vol 15 (12) ◽  
pp. 5765-5783
Author(s):  
Lu Gao ◽  
Haijun Deng ◽  
Xiangyong Lei ◽  
Jianhui Wei ◽  
Yaning Chen ◽  
...  
Keyword(s):  
Air Temperature ◽  
Minimum Temperature ◽  
Swiss Alps ◽  
Maximum Temperature ◽  
Current Evidence ◽  
High Mountain ◽  
Regional Warming ◽  
Mean Temperature ◽  
Warming Rate ◽  
Tian Shan

Abstract. The phenomenon in which the warming rate of air temperature is amplified with elevation is termed elevation-dependent warming (EDW). It has been clarified that EDW can accelerate the retreat of glaciers and melting of snow, which can have significant impacts on the regional ecological environment. Owing to the lack of high-density ground observations in high mountains, there is widespread controversy regarding the existence of EDW. Current evidence is mainly derived from typical high-mountain regions such as the Swiss Alps, the Colorado Rocky Mountains, the tropical Andes and the Tibetan Plateau–Himalayas. Rare evidence in other mountain ranges has been reported, especially in arid regions. In this study, EDW features (regional warming amplification and altitude warming amplification) in the Chinese Tian Shan (CTM) were detected using a unique high-resolution (1 km, 6-hourly) air temperature dataset (CTMD) from 1979 to 2016. The results showed that there were significant EDW signals at different altitudes on different timescales. The CTM showed significant regional warming amplification in spring, especially in March, and the warming trends were greater than those of continental China with respect to three temperatures (minimum temperature, mean temperature and maximum temperature). The significance values of EDW above different altitude thresholds are distinct for three temperatures in 12 months. The warming rate of the minimum temperature in winter showed a significant elevation dependence (p<0.01), especially above 3000 m. The greatest altitudinal gradient in the warming rate of the maximum temperature was found above 4000 m in April. For the mean temperature, the warming rates in June and August showed prominent altitude warming amplification but with different significance above 4500 m. Within the CTM, the Tolm Mountains, the eastern part of the Borokoonu Mountains, the Bogda Mountains and the Balikun Mountains are representative regions that showed significant altitude warming amplification on different timescales. This new evidence could partly explain the accelerated melting of snow in the CTM, although the mechanisms remain to be explored.

scholarly journals Évolution des parois rocheuses gelées de haute montagne sous forçage climatique

2020 ◽  
pp. 034
Author(s):  
Ludovic Ravanel ◽  
Florence Magnin ◽  
Xavi Gallach ◽  
Philip Deline
Keyword(s):  
Global Warming ◽  
High Altitude ◽  
Recent Work ◽  
Time Scales ◽  
Heat Waves ◽  
High Mountain ◽  
Permafrost Degradation ◽  
Geomorphological Processes ◽  
Different Time Scales ◽  
Mont Blanc Massif

Avec le réchauffement du climat, la dégradation du permafrost est à l'origine d'une intensification des processus géomorphologiques sur les versants de haute montagne. Dans les parois rocheuses, les écroulements se multiplient et leur volume augmente, posant des problèmes de sécurité non seulement à haute altitude (infrastructures, alpinistes), mais également pour les fonds de vallée. Cet article présente les travaux récemment menés dans le massif du Mont-Blanc sur la relation entre climat et écroulements à différentes échelles de temps, les effets des épisodes caniculaires et la répartition et l'évolution du permafrost de paroi. Under global warming, permafrost degradation tends to intensify geomorphological processes on high mountain slopes. In the perennially frozen rock walls, the number and volume of rockfalls is increasing, causing safety problems not only at high altitude (infrastructure, mountaineers) but also for the valleys. This article summarizes recent work carried out in the Mont-Blanc massif on the climate-rockfall relationship at different time scales, the effects of heat waves, and the distribution/evolution of rock wall permafrost.

scholarly journals Characterization of PM1-Bound Metallic Elements in the Ambient Air at a High Mountain Site in Northern China

2018 ◽  
Vol 18 (12) ◽  
pp. 2967-2981
Author(s):  
Jun-Jie Yue ◽  
Roberta Palmiero ◽  
Yang-Yang Han ◽  
Yan Wang ◽  
Qian-Qian Li ◽  
...  
Keyword(s):  
Northern China ◽  
Ambient Air ◽  
High Mountain ◽  
Metallic Elements ◽  
Mountain Site

The Mesolithic site Ullafelsen in the Fotsch Valley (Tyrol, Austria) – a biomarker perspective

2020 ◽  
Author(s):  
Michael Zech ◽  
Marcel Lerch ◽  
Marcel Bliedtner ◽  
Clemens Geitner ◽  
Dieter Schäfer ◽  
...  
Keyword(s):  
Environmental History ◽  
Analytical Data ◽  
Late Glacial ◽  
Swiss Alps ◽  
Peat Bogs ◽  
High Mountain ◽  
Hunter Gatherers ◽  
Alpine Regions ◽  
Bavarian Alps ◽  
History Of

&lt;p&gt;The archaeology of high mountain regions got high attention since the discovery of the copper age mummy called &quot;&amp;#214;tzi&quot; in the &amp;#214;tztaler Alps in 1991. Results of former archaeological research projects show that mesolithic hunter-gatherers lived in Alpine regions since the beginning of the Holocene, 11,700 years ago (Cornelissen &amp; Reitmaier 2016). Amongst others, the Mesolithic site Ullafelsen (1860 m a.s.l.) and surroundings represent a very important archaeological reference site in the Fotsch Valley (Stubaier Alps, Tyrol) (Sch&amp;#228;fer 2011). Many archaeological artifacts and fire places were found at different places in the Fotschertal, which provides evidence for the presence and the way of living of our ancestor. The &quot;Mesolithic project Ullafelsen&quot; includes different scientific disciplines ranging from high mountain archaeology over geology, geomorphology, soil science, sedimentology, petrography to palaeobotany (Sch&amp;#228;fer 2011). Within an ongoing DFG project we aim at addressing questions related to past vegetation and climate, human history as well as their influence on pedogenesis from a biomarker and stable isotope perspective (cf. Zech et al. 2011). Our results for instance suggest that (i) the dominant recent and past vegetation can be chemotaxonomically differentiated based on leaf wax-derived &lt;em&gt;n&lt;/em&gt;-alkane biomarkers, (ii) there is no evidence for buried Late Glacial topsoils being preserved on the Ullafelsen as argued by Geitner et al. (2014), rather humic-rich subsoils were formed as B&lt;sub&gt;h&lt;/sub&gt;-horizons by podsolisation and (iii) marked vegetations changes likely associated with alpine pasture activities since the Bronce Age are documented in Holocene peat bogs in the Fotsch Valley. Nevertheless, there remain some challenges by joining all analytical data in order to get a consistent overall picture of human-environmental history of this high mountain region.&lt;/p&gt;&lt;p&gt;Cornelissen &amp; Reitmaier (2016): Filling the gap: Recent Mesolithic discoveries in the central and south-eastern Swiss Alps. In: Quaternary International, 423.&lt;/p&gt;&lt;p&gt;Geitner, C., Sch&amp;#228;fer, D., Bertola, S., Bussemer, S., Heinrich, K. und J. Waroszewski (2014): Landscape archaeological results and discussion of Mesolithic research in the Fotsch valley (Tyrol). In: Kerschner, H., Krainer, K. and C. Sp&amp;#246;tl: From the foreland to the Central Alps &amp;#8211; Field trips to selected sites of Quaternary research in the Tyrolean and Bavarian Alps (DEUQUA EXCURSIONS), Berlin, 106-115.&lt;/p&gt;&lt;p&gt;Sch&amp;#228;fer (2011): Das Mesolithikum-Projekt Ullafelsen (Teil 1). Mensch und Umwelt im Holoz&amp;#228;n Tirols (Band 1). 560 p., Innsbruck: Philipp von Zabern.&lt;/p&gt;&lt;p&gt;Zech, M., Zech, R., Buggle, B., Z&amp;#246;ller, L. (2011): Novel methodological approaches in loess research - interrogating biomarkers and compound-specific stable isotopes. In: E&amp;G Quaternary Science Journal, 60.&lt;/p&gt;

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