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MOSAiC is an international research expedition to study the physical, chemical, and biological processes that couple the Arctic atmosphere, sea ice, ocean, and ecosystem. Beginning in fall 2019, the RV Polarstern icebreaker will freeze into Arctic sea ice and drift with it for a full year, allowing scientists to collect data in every season.
Every September, the sun begins to rise over the horizon at the South Pole. Sparked by that sunlight, a season of ozone depletion begins. NOAA and CIRES researchers in NOAA's Global Monitoring Laboratory are blogging about this depletion season, as the "hole" develops and later as ozone builds back up.