1. Atlantis Scientific Objectives and Study Regions N. California Coast, San Francisco Bay, Oakland Harbor, Sacramento River and Turning Basin S. California coast, Harbors, Santa Barbara Channel Emissions, Transport and Transformation Emissions from San Diego, Los Angeles & Long Beach Harbors; Port Hueneme SOx sources and transformations Ship exhaust emissions Marine boundary layer chemistry and transport

2. Atlantis Scientific Objectives and Study Regions Regions of pollution outflow and stratus clouds up to 100 nm offshore Aerosol – Cloud Interactions

3. Ports Los Angeles Long Beach Oakland LA outflow and night time chemistry LAX emissions Ship emissions Margarithe Maersk NOAA RV Miller Freeman …… Coordinated cloud study with P3 Methane seeps – Santa Barbara Refineries E. of San Pablo Bay Agricultural/urban emissions – Sacramento Deep Water Channel & Turning Basin Coordination with DOE G1 Marine emissions Sources of S… Ocean derived aerosol (Sea Sweep) RV Atlantis CalNex 2010