• Over 30 Mini-O3 instruments built and calibrated.
• Two Mini-O3 instruments are being built for the University of Houston for the NOAA Houston field campaign in summer 2006.
• Six mini-O3 instruments are being built for the TWS/NOAA Smart Balloon participation in August – September 2006 NOAA field campaign in Houston, TX.
• Four mini-O3 instruments will be used in the March 2006 MILAGRO field campaign in Mexico City (http://www.joss.ucar.edu/milagro/)
• Twelve mini-O3 instruments delivered for NH-DOT Roadside Weather Information System (December 2005). Data to be used by the Meteorological Assimilation Data Ingest System (MADIS).

Mini-O3 sensor packaged for deployment in the NH-DOT Roadside Weather Information System.

• Two mini-O3 instruments were used successfully by Max Plank Institute for Biogeochemistry in Germany to conduct vertical profiling experiments (August- September 2005).

Tethered blimp with mini-O3 sensors inside white styrofoam container (left) and example profile data collected with the system (right).

• TWS Monitoring of O3 in Cooperation with the NOAA Coastal Observation and Analysis Center (http://www.cooa.unh.edu/index.jsp) at UNH

The Coastal Observation and Analysis Center at UNH deployed a buoy for environmental monitoring and research equipped with a TWS O3 instrument on April 28th, 2005 (Figures 23 and 24). The buoy was located in Great Bay NH: Latitude: 43o 04’ 17.5”, Longitude: -70 o 52’ 04.2”.The TWS O3 instrument was mounted within a water tight enclosure, directly to the super structure of the buoy, 2.5 meters above water line. The air inlet for the TWS O3 instrument is mounted to the super structure, 4 meters above water line. The inlet is a downward pointing Teflon 47mm filter holder, with an inline 2 µm Flouropore filter, to prevent sea salt and other particles from entering the sample optical chamber.

Mini-O3 sensor inlet (left) and instrument mounted on buoy ready for deployment (right).

Buoy deployed in Great Bay (left) and close-up of O3 sensor inlet (right).

August 15, 2004 - Balloon #3 makes transatlantic flight over the past 12 days as it travels nearly 7,000 km.

August 3, 2004 - Two Smart Balloons (#3 & #4) are released together.

July 20, 2004 -Smart Balloon #2 is released and it travels over the Gulf of Maine toward Nova Scotia and Prince Edward Island.

July 15, 2004 - Smart Balloon #1 is released and it travels northward over New England toward Maine.