Increasing frequency and changing nature of Saharan dust storm events in the Carpathian Basin (2019–2023) – the new normal?
-
Published:2024-01-12
Issue:4
Volume:72
Page:319-337
-
ISSN:2064-5147
-
Container-title:Hungarian Geographical Bulletin
-
language:
-
Short-container-title:HunGeoBull
Author:
Varga György,Rostási Ágnes,Meiramova Aida,Dagsson-Waldhauserová Pavla,Gresina Fruzsina
Abstract
The number and intensity of Saharan dust storm events identified in Europe has been increasing over the last decade. This can be explained by the role of ongoing climate change. An extension of previous studies covering a 40-year period is presented in this paper, with new data on the frequency, synoptic meteorological background, source areas, grain size, grain shape and general mineralogy of deposited dust for the period 2019–2023 in the Carpathian Basin. A total of 55 dust storm episodes have been identified in the region over the five-year period, which is significantly higher than the long-term average. The classification based on synoptic meteorological background clearly showed that the frequency of circulation types with a more pronounced meridional component increased and dust material reached further north more frequently than before. In several cases, large amounts of dust were deposited, from which samples were collected and subjected to detailed granulometric analysis. The varied grain size data showed that coarse silt (20–62.5 μm) and sand (62.5 < μm) fractions were also present in large quantities in the transported dust material.
Publisher
Research Centre for Astronomy and Earth Sciences
Subject
General Earth and Planetary Sciences,Geography, Planning and Development,Cultural Studies,Agronomy and Crop Science
Reference66 articles.
1. Adebiyi, A.A. and Kok, J.F. 2020. Climate models miss most of the coarse dust in the atmosphere. Science Advances 6. 2. Adebiyi, A.A., Kok, J.F., Murray, B.J., Ryder, C.L., Stuut, J.-B.W., Kahn, R.A., Knippertz, P., Formenti, P., Mahowald, N.M., Pérez García-Pando, C., Klose, M., Ansmann, A., Samset, B.H., Ito, A., Balkanski, Y., di Biagio, C., Romanias, M.N., Huang, Y. and Meng, J. 2023. A review of coarse mineral dust in the Earth system. Aeolian Research 60. 100849. 3. Alpert, P., Kishcha, P., Shtivelman, A., Krichak, S.O. and Joseph, J.H. 2004. Vertical distribution of Saharan dust based on 2.5-year model predictions. Atmospheric Research 70. 109-130. 4. Ansmann, A., Mamouri, R.-E., Bühl, J., Seifert, P., Engelmann, R., Hofer, J., Nisantzi, A., Atkinson, J.D., Kanji, Z.A., Sierau, B., Vrekoussis, M. and Sciare, J. 2019. Ice-nucleating particle versus ice crystal number concentrationin altocumulus and cirrus layers embedded in Saharan dust: A closure study. Atmospheric Chemistry and Physics 19. 15087-15115. 5. Arimoto, R. 2001. Eolian dust and climate: Relationships to sources, tropospheric chemistry, transport and deposition. Earth-Science Reviews 54. 29-42.
|
|