Foreword for Special Issue: Current Research on Atmospheric Aerosols and Trace Gases over the Polar Regions

Abstract

Abstract: Short-lived climatically important atmospheric aerosols and trace gases such as ozone play major roles in global and regional climates, the chemistry of the atmosphere, and the biogeochemical cycling of nutrients such as phosphorus. Because of the large spatial and temporal variations in their characteristics, it is of the utmost importance to have observations from different regions of the globe to understand how they behave in different environments. The polar regions of Earth are extremely sensitive to climate change and are considered to be relatively unspoiled, being situated far from sources of anthropogenic pollution emissions. This makes them ideal places to study natural aerosol processes and to assess the impacts of long-range atmospheric transport. Atmospheric aerosols over the Arctic and Antarctic have been widely studied to provide information on different characteristics including chemical compositions, particle numbers and size distributions, and optical proprieties, etc. The Chinese National Antarctic Research Expedition (CHINARE) initiated its first voyage of scientific survey in Antarctica and the Southern Ocean in 1984, followed by the start of Arctic and the Arctic Ocean surveys in 1999. The sampling and analysis of marine and atmospheric aerosols over polar continents and oceans have now been carried out for more than fifteen years in the Arctic and thirty years in the Antarctic. This special issue of Advances in Polar Science summarizes the recent advances via ground and ship-based observations achieved by Chinese scientists during both Antarctic and Arctic campaigns under the support of the Program of China Polar Environment Investigation and Assessment.

Key words: atmospheric aerosols , trace gases, Southern Ocean, Arctic Ocean

Liqi Chen Zhouqing Xie Yuan Gao. Foreword for Special Issue: Current Research on Atmospheric Aerosols and Trace Gases over the Polar Regions[J]. ADVANCES IN POLAR SCIENCE.

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