1. The Collaborative O-Buoy Project: Deployment of a Network of Arctic Ocean Chemical Sensors for the IPY and beyond Patricia Matrai, Bigelow Laboratory for Ocean Sciences Jan Bottenheim, Environment Canada Udo Frieß, U. Heidelberg Donald Perovich, CRREL Paul Shepson, Purdue U. William Simpson, U. Alaska Fairbanks Aim: To develop an Arctic Ocean-rugged and autonomous buoy capable of measuring atmospheric O 3, BrO, and CO 2 for a period of up to two years to ensure a full year cycle of high quality data.

2. Project status and progress Air Ice Water

3. Coordination and integration plans - O-Buoy field testing in Ellis Lagoon coordinated with BASC - Acquisition and assembly of O-Buoys 3 and 4 coordinated with Environment Canada (co-PI J. Bottenheim) - Data accessibility: all data and metadata accessible to the full community via CADIS - Education and Outreach: Web site with near-real time updates of O-Buoys and data Webcam images of field site Barrow High School Chemistry program- field training Ilisagvik College- field training for Science Support Technician program

4. Cold testing: 12-13 May ’08 CRREL Test site: Barrow, AK Test period: Fall ’08 Deployment: Fall ’08 – Spring ’09 Data accessibility: Weekly or daily Iridium transmission to Bigelow and then co-PIs Future directions and planning for the 2008 season O-Buoy#1 O-Buoy #2-4