Newly identified climatically and environmentally significant high-latitude dust sources ...

• Main Authors: Meinander, O, Dagsson-Waldhauserova, P, Amosov, P, Aseyeva, E, Atkins, Cliff, Baklanov, A, Baldo, C, Barr, SL, Barzycka, B, Benning, LG, Cvetkovic, B, Enchilik, P, Frolov, D, Gassó, S, Kandler, K, Kasimov, N, Kavan, J, King, J, Koroleva, T, Krupskaya, V, Kulmala, M, Kusiak, M, Lappalainen, HK, Laska, M, Lasne, J, Lewandowski, M, Luks, B, Mcquaid, JB, Moroni, B, Murray, B, Möhler, O, Nawrot, A, Nickovic, S, O'neill, NT, Pejanovic, G, Popovicheva, O, Ranjbar, K, Romanias, M, Samonova, O, Sanchez-Marroquin, A, Schepanski, K, Semenkov, I, Sharapova, A, Shevnina, E, Shi, Z, Sofiev, M, Thevenet, F, Thorsteinsson, T, Timofeev, M, Umo, NS
• Format: Text
• Language: unknown
• Published: Open Access Te Herenga Waka-Victoria University of Wellington 2024
• Subjects: Space sciences; Astronomical sciences; Geology; FOS Earth and related environmental sciences; Atmospheric sciences; Earth sciences; Physical geography and environmental geoscience; Climate change science; Svalbard; Patagonia; Canada; Greenland; Antarc*; Antarctica; Iceland; Alaska
• Online Access: https://dx.doi.org/10.25455/wgtn.25824094; https://openaccess.wgtn.ac.nz/articles/journal_contribution/Newly_identified_climatically_and_environmentally_significant_high-latitude_dust_sources/25824094

Dust particles from high latitudes have a potentially large local, regional, and global significance to climate and the environment as short-lived climate forcers, air pollutants, and nutrient sources. Identifying the locations of local dust sources and their emission, transport, and deposition processes is important for understanding the multiple impacts of high-latitude dust (HLD) on the Earth's systems. Here, we identify, describe, and quantify the source intensity (SI) values, which show the potential of soil surfaces for dust emission scaled to values 0 to 1 concerning globally best productive sources, using the Global Sand and Dust Storms Source Base Map (G-SDS-SBM). This includes 64 HLD sources in our collection for the northern (Alaska, Canada, Denmark, Greenland, Iceland, Svalbard, Sweden, and Russia) and southern (Antarctica and Patagonia) high latitudes. Activity from most of these HLD sources shows seasonal character. It is estimated that high-latitude land areas with higher (SI ≥0.5), very high ...