This campaign took place in April 2015, with the focus upon the characterization of ice clouds and pollutant levels, including black carbon, across the Arctic. The campaign was again a collaboration between NETCARE scientists and AWI. Along with the POLAR 6, the POLAR 5 make the trans-Arctic passage with its intent to characterize sea ice levels. The campaign started in Longyearben, Spitzbergen and was to have continued in Station Nord, Greenland but bad weather at the start required us to skip science activities in Station Nord and to pass to Alert and Eureka, Nunavut and then onto Inuvik, NWT.
The instrumentation (list below) was similar to that flow in the summer 2014 but with specific changes to better characterize the optical properties of the particles and the character of the ice clouds. Close to 10 science flights were performed, with some measurements also performed on the ferry flights between stations. During the campaign our scientists submitted updates that can be found in the NETCARE activities blog.
POLAR 6 2015 Instrumentation
Ten NETCARE scientistswere on board the Canadian Coast Guard Ship Amundsen, a research icebreaker, studying atmospheric and oceanic composition throughout the central Arctic. The cruise departed from Quebec City on July 8, entering Lancaster Sound on July 17, undergoing a partial exchange of scientists at Resolute Bay, Nunavut on July 24, before heading west through the Northwest Passage. All NETCARE scientists left the ship on August 14 in Kugluktuk, Northwest Territories.
The scientific goal was to assess the impact of the ocean in promoting the formation of atmospheric aerosols. In particular, as sea ice retreats in years to come, it is important to understand the role that oceans play in affecting Arctic climate. To do this, we took measurements of biogeochemical parameters in the ocean to explore the production of molecules that are released from the ocean to the atmosphere. On the atmospheric side, we measured the concentrations of these gases and their oxidation products, and studied the nature of the ambient atmospheric aerosol particles, including their size, concentration, composition and cloud nucleating abilities.
Please follow these links for a map of the five-week-long Amundsen Arctic cruise and a list of instrumentation deployed. During the campaign we hosted a Campaign Blog that will be updated regularly by the NETCARE scientists.