Aerosols significantly influence the Earth’s climate system, atmospheric chemistry, and air quality, making their study crucial in polar, remote, marine, and high-altitude environments. These regions play a crucial role in comprehending the intricacies of global climate systems and atmospheric processes due to their unique atmospheric conditions. Understanding how aerosols grow, transform, and are eventually removed from the atmosphere is crucial for refining climate models. Despite their importance, aerosol properties, sources, and transformations in these regions are poorly understood due to limited observational data caused by logistical challenges, harsh conditions, and limited accessibility. This proposal highlights the need for field campaigns to address the data gap, focusing on recent expeditions to the Arctic, Antarctic, Himalayas, and other remote marine and high-altitude regions. The session will cover the following topics:
• Recent field campaign results that use ground, ship-based, and airborne measurements. This includes cutting-edge measurement techniques, such as UAVs, balloon-borne sensors, and real-time automated ground-based systems, newly established research infrastructures which enable high-resolution data collection in extreme environments.
• Use of field data in improving satellite retrievals and models simulating aerosol transport, atmospheric processes, and interactions with clouds and radiation.
• The physical and chemical composition of aerosols and their precursors, investigating the range of chemical species present in these regions and their roles in global atmospheric processes.
• The mechanisms driving aerosol generation, including the complex interactions between air-sea, air-snow interfaces, meteorology, and chemical processes that lead to emissions of trace gases and volatile organic compounds.
• By fostering collaboration and knowledge exchange, this session aims to advance the understanding of aerosol impacts in these fragile regions, contributing to efforts to mitigate climate change globally.
• Recent field campaign results that use ground, ship-based, and airborne measurements. This includes cutting-edge measurement techniques, such as UAVs, balloon-borne sensors, and real-time automated ground-based systems, newly established research infrastructures which enable high-resolution data collection in extreme environments.
• Use of field data in improving satellite retrievals and models simulating aerosol transport, atmospheric processes, and interactions with clouds and radiation.
• The physical and chemical composition of aerosols and their precursors, investigating the range of chemical species present in these regions and their roles in global atmospheric processes.
• The mechanisms driving aerosol generation, including the complex interactions between air-sea, air-snow interfaces, meteorology, and chemical processes that lead to emissions of trace gases and volatile organic compounds.
• By fostering collaboration and knowledge exchange, this session aims to advance the understanding of aerosol impacts in these fragile regions, contributing to efforts to mitigate climate change globally.