The U.S. government is closed. This site will not be updated; however, NOAA websites and social media channels necessary to protect lives and property will be maintained. To learn more, visit commerce.gov. For the latest forecasts and critical weather information, visit weather.gov.
Platform: NOAA-CHEM Twin Otter Instruments
Chemiluminescence: NO, NO2, O3
NCAR 2-Channel (NO & NO2) Chemiluminescence instrument
Three sample flows, each employing the chemiluminescent reaction: NO + O3 → NO2* + O2
Measurement Objectives:
NOx emissions and their relation to fuel type, fire characteristics, time of day (day vs. night), and meteorology.
Subsequent chemical evolution, especially the production of O3 and the concomitant evolution of NOx (NOx → PAN), and also nighttime production of NO3.