On NOx Evolution in the Pacific during TRACE-P

NO and NO₂, collectively known as NO_x, are intimately involved in the control of HO_x production and ozone formation. In moderately high concentrations NO_x incrases HO_x production and therefore atmospheric oxidation; however at very high concentrations it leads to a net loss of HO_x. We present NO_x measurements from NASA's GTE TRACE-P field campaign, and examine NO_x evolution in airmasses as they flow off the Asian continent into the Pacific Ocean.