University of Washington: More than 100 years of Arctic sea ice volume reconstructed with help from historic ships’ logbooks. “Our knowledge of the dwindling sea ice coverage in the Arctic Ocean comes mostly through satellites, which since 1979 have imaged the sea ice from above. The University of Washington’s Pan-Arctic Ice Ocean and Modeling System, or PIOMAS, is a leading tool for gauging the thickness of that ice. Until now that system has gone back only as far as 1979. A new paper now extends the estimate of Arctic sea ice volume back more than a century, to 1901. To do so it used both modern-day computer simulations and historic observations, some written by hand in the early 1900s aboard precursors to today’s U.S. Coast Guard ships.
Phys .org: Arctic lakes and rivers can lose the diversity of freshwater species. “Climate change and its impacts threaten the health of Arctic freshwater ecosystems, with continued warming pushing cold-water species unique to the Arctic—such as the Arctic char—to the brink of regional loss…. For the first time, experts have compiled a circumpolar database on freshwater biodiversity to keep knowledge easily updated and available.”
University of The Arctic: PAME Launches Arctic Shipping Database. “The Arctic Council’s Working Group on the Protection of the Arctic Marine Environment (PAME) launched a comprehensive Arctic shipping activity database on February 7, 2019. The launch is a significant milestone in PAME’s work to improve knowledge of historical Arctic ship traffic activity and various factors that affect such activity, such as sea ice extent, meteorological and oceanographic conditions, and international regulations. The database will allow authorized users to analyze vessel traffic patterns, fuel use, and air emissions, among other economic and environmental conditions.”
The Arctic: Finland to create a database of black carbon and methane emissions in the Arctic. “One of Finland’s priorities during its two-year chairmanship of the Arctic Council is to create a database of the sources of black carbon and methane emissions in the Arctic, Finland’s consul general in St. Petersburg, Anne Lammila, told the TASS news agency.”