Differing from previous years, the 2009 JOIS expedition was conducted from mid-September through mid-October. Lead again by Sarah Zimmermann on the CCGS Louis S. St. Laurent, the scientific parties were sometimes challenged by the weather which became increasingly wintry throughout the cruise. However, we still managed to perform nearly all of the scheduled hydrographic and geochemical stations, recover and redeploy all 3 BGOS moorings, redeploy the CABOS system, deploy 4 ITPs (one as part of an Ice-Based Observatory (IBO) including an IMB, AOFB, and atmospheric chemistry buoy (O-buoy)), and recover 2 ITPs. Click here to read dispatches from the cruise. Click here to read cruise report.