Methane, Ozone and Other Trace Gases

Bounding the roles of methane, ozone and trace gases on the Arctic climate with in situ observations
Science Questions:
  1. How can we best define and parse out background ozone levels from measurements?
  2. What geographical coverage, vertical resolution, sampling frequency, and measurement accuracy are required for a measurement network to understand surface, tropospheric, and stratospheric ozone variability in the Arctic?
  3. What frequency and accuracy of collocated measurements of VOC/NOx/BrO/isotopes/greenhouse gases are required to attribute Arctic ozone variability to atmospheric processes?
  4. What is the impact of forest fires and long-range transport on surface and tropospheric ozone and other biomass burning species [CO, C2H6, HCN, HCHO, HCOOH, C2H4, CH3OH, aerosols]?
  5. How well can Global Transport Chemistry Climate or Arctic regional Models simulate long-term, intra-annual, and seasonal trends and variability in surface and tropospheric ozone?


Co-Chair: Irina Petropavlovskikh (Barrow, Summit)

Co-Chair: Sara Crepinsek (Eureka, Tiksi)

Facilitator: Sara Crepinsek



Audra McClure (Barrow, Summit)

Detlev Helmig

David Tarasick

Germas Bernhard

Henrik Skov (Villum)

James Hannigan

Kimberly Strong

Kjetil Torseth

Markus Fiebig

Mika Vestenius (Pallas)

Mike Shaw (Alert)

Oksana Tarasova

Ove Hermansen (Ny-Alesund)

Sandy Starkweather

Shima Bahramvash

Sverre Solberg

Taneil Uttal (Eureka, Tiksi)

Timo Salmi (Pallas)

Von Walden

Xiaoyi Zhao

Xin Yang

Current Events

Action Items of Working Group:
1) Publication: Climatology of surface ozone at IASOA stations
2) "Gold" product file (merged file for observationalists and modelers) -- identify file type best for scientific community
3) Produce Quality Control Procedure document for Arctic region (procedure for applying calibrations to the data, recommended calibration schedule of instruments, how to flag data, and how to apply quality control parameters)
4) Inventory of ozone/NOx/VOC/BrO/isotop/greenhouse gas measurements at IASOA stations -- identify which are collocated