Nitrous oxide (N2O) is the third most important greenhouse gas (GHG) after carbon dioxide (CO2) and methane (CH4). Its global warming potential is about 300 times larger than CO2 for a 100 year timescale. Surface in-situ observations show that N2O is steadily rising since the 1970’s. This positive trend is mostly caused by the rapid increase of the worldwide use of nitrogen fertilizers in the agricultural practices.
NDACC News and Events - 2021
Worldwide efforts to contain spreading of the COVID-19 pandemic have reduced emissions from surface traffic by about 15% on average over the year 2020. Air-traffic (and emissions) went down by 40% on average.
Traffic is a main source of nitrogen oxides in the atmosphere, and much of the ozone in the troposphere is produced by photochemical reactions involving nitrogen oxides and volatile organic compounds (VOCs).
As previously announced, we currently are making plans to hold the 2021 NDACC Steering Committee meeting in College Park, MD, the week of 13-17 September 2021. With the ongoing restrictions associated with the COVID-19 pandemic, it remains unclear if we will be able to have a face-to-face meeting this year. We are going to make a decision in mid April regarding the meeting format. In the meantime, we ask that you note the dates on your calendar. Whether it be face-to-face or virtual, we hope that as many of you will participate in the meeting as possible.
Congratulations to Dr. Ryan Stauffer for his appointment to a Civil Service position in the NASA Goddard Space Flight Center Atmospheric Chemistry and Dynamics Laboratory within the Earth Sciences Division! This appointment is effective 1 March 2021. Ryan is a member of the NDACC Steering Committee, and has been serving as Sonde Working Group Co-Chair since the 2020 annual meeting.