T P Carsey (Atlantic Oceanographic and Meteorological
Laboratories, National Oceanic and Atmospheric
Administration, Miami, Florida 33149, 305-361-4386;
M L Farmer (Atlantic Oceanographic and Meteorological Laboratories, National Oceanic and Atmospheric Administration, Miami, Florida 33149, 305-361-4549; email email@example.com)
Nitric oxide, nitrogen dioxide, NOY, and PAN (peroxyacetyl nitrate) were measured in the Pacific Ocean boundary layer aboard the R/V DISCOVERER during the Pacific Transit Cruise, 11-Oct-1995 to 10-Nov-1995, Seattle to Hobart, Tasmania, and during the ACE-1 cruise, 15-Nov-1995 through 13-Dec-1995, south and east of Tasmania. NO, NO2, and NOY measurements employed a chemiluminescent NO detector after appropriate conversion; calibration employed standard gases (NO) or calibrated permeation devices (NO2, NOy). PAN measurements were made with an automated gas chromatograph utilizing a packed column and electron capture detection; calibration was performed using PAN generated by photolytic reaction of acetone with O2 and NO2, molybdenum catalyst conversion and chemiluminescent analysis. Mixing ratios of measured nitrogen species will be discussed in relation to synoptic meteorological conditions and concentrations of other relevant chemical species.