Wintertime Arctic Sea Spray Aerosol Composition Controlled by Sea Ice Lead Microbiology.
作者： Rachel M. Kirpes , Daniel Bonanno , Nathaniel W. May , Matthew Fraund , Anna J. Barget
DOI: 10.1021/ACSCENTSCI.9B00541
关键词: Sea ice 、 Total organic carbon 、 Lead (sea ice) 、 Aerosol composition 、 Algae 、 Sea spray 、 Oceanography 、 Arctic 、 Environmental science 、 Aerosol
摘要: The Arctic is experiencing the greatest warming on Earth, as most evident by rapid sea ice loss. Delayed freeze-up in Alaskan decreasing wintertime extent and changing marine biological activity. However, impacts of newly open water spray aerosol (SSA) production atmospheric composition are unknown. Herein, we identify SSA, produced locally from fractures (leads), dominant source coastal during winter, highlighting year-round nature SSA emissions. Nearly all individual featured thick organic coatings, consisting saccharides, amino acids, fatty divalent cations, consistent with exopolymeric secretions cryoprotectants algae bacteria. In contrast, local summertime lacked these carbon or thin only nearby. was not frost flowers s...
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