Data collected on the NOAA ship RONALD H. BROWN during ACE-ASIA , provided by the Climate Chemistry Group at PMEL

• PMEL Ronald Brown Data
• Ron Brown Airmass Timeline
• Project Web Page on Ship (as it was on the last day of the cruise).
• Cruise Track Maps, showing the ship position at the start of each DOY (Day-of-Year)
• Hawaii to Hachijo, Days 74 to 91
• Hachijo to 39N , Sea of Japan, Days 91 - 99
• 39 N to Yokosuka , Days 99 - 109
• Days 74 to 109 (with DOY on map)
• Days 74 to 109 (without DOY on map
• Ship Position file: aa_pos_30min.csv -- gives ship position every 30 minutes, time scale is in Decimal Day of Year, DOY, such that DOY 32.5 = noon UTC on Feb 1.
• Back Trajectories at 6-hour intervals calculated with Hysplit-4
• Radiosonde height-time cross sections and data files
• Wind Sector/ Sample Pump information for use in data analysis and editing. This data can be used to identify period of unfavorable winds that may have introduced contamination from the ship.
• One minute relative wind data: relwind.csv
• Data system auto-pump log: aa_dl.txt This file is the data system log file telling when the sample pumps were switched on and off. For more information contact Jim Johnson at PMEL (below)
• Aerosol measurement temperature and relative humidity (actually the temperature and humidity of the sample air stream as it entered the impactors).
• Time periods of Ron Brown Contamination .
• One minute CN data cleaned at 2 levels: Level 1 has all data removed during times when the instruments were not working and Level 2 also has all data removed from times that have ship contamination from the RH Brown. data file is: ACE-ASIA_cn_cleaned.csv and associated readme file: readme_cleaned.txt
• DOY conversion table