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Интеллектуальная Система Тематического Исследования НАукометрических данных |
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Co-evolution of atmospheric warming and environmental changes from a new high altitude European ice coreтезисы доклада
- Авторы: Barbante C., Bertó M., Carturan L., Davi M., Dalla Fontana G., Dreossi G., Dinale R., Dragà G., Gabrieli J., Gabrielli P., Festi D., Jenk T., Kehrwald N., Kenny D., Mair V., Mikhalenko V., Lin P.N., Oeggl K., Schotterer U., Schwikowski M., Seppi R., Spolaor A., Stenni B., Uglietti C., Thompson L.G., Tonidandel D., Zanoner T.
- Сборник: IPICS 2016 Abstracts
- Тезисы
- Год издания: 2016
- Место издания: Tasmania University Hobart
- Аннотация: While robust evidence indicates that anthropogenic greenhouse gases are contributing to the increase in Earth’s surface temperature, insights into short-term regional changes are ambiguous. In particular, synergies between local aerosol dispersion and global climate change are not sufficiently understood, especially at high elevation where rapid areal shrinking of alpine glaciers and the consequent decrease in albedo may provide an additional positive feedback. We retrieved four ice cores from the ice field atop Mt. Ortles (3905 m), the highest mountain in South Tyrol (Italian Alps). Our goal is to identify coevolutionary interactions between mid- tropospheric warming and environmental changes in the ecosystems and human society from the coldest time interval of the Holocene (Little Ice Age) to the current warm period. This drilling site is well suited for this purpose as it is located in a rapidly warming area of the world that is also a global hotspot of atmospheric pollution originating from the extensively industrialized and cultivated areas of Central and Southern Europe. Here we present records of stable isotopes, major ions, trace elements, pollen types, black carbon and levoglucosan to show possible interactions between: 1) climate at high elevation (air temperature); 2) human impacts (industrialization, changes in land use/fire activities); and 3) ecosystems (composition of the vegetation, aridity conditions, types of exposed soils). We discuss how strong regional environmental variations may interact with superimposed climatic changes of global significance.
- Добавил в систему: Михаленко Владимир Николаевич