Satellite boreal measurements over Alaska and Canada during June-July 2004: Simultaneous measurements of upper tropospheric CO, C2H6, HCN, CH3Cl, CH4, C2H2, CH3OH, HCOOH, OCS, and SF6 mixing ratios

Curtis P. Rinsland, Gaelle Dufour, Chris D. Boone, Peter F. Bernath, Linda Chiou, Pierre-Francois Coheur, Solene Turquety, Cathy Clerbaux

Research output: Contribution to journalArticlepeer-review

Abstract

Simultaneous ACE ( Atmospheric Chemistry Experiment) upper tropospheric CO, C2H6, HCN, CH3Cl, CH4, C2H2, CH3OH, HCOOH, and OCS measurements show plumes up to 185 ppbv (10(-9) per unit volume) for CO, 1.36 ppbv for C2H6, 755 pptv (10(-12) per unit volume) for HCN, 1.12 ppbv for CH3Cl, 1.82 ppmv (10(-6) per unit volume) for CH4, 0.178 ppbv for C2H2, 3.89 ppbv for CH3OH, 0.843 ppbv for HCOOH, and 0.48 ppbv for OCS in western Canada and Alaska at 50 degrees N-68 degrees N latitude between 29 June and 23 July 2004. Enhancement ratios and emission factors for HCOOH, CH3OH, HCN, C2H6, and OCS relative to CO at 250-350 hPa are inferred from measurements of young plumes compared with lower mixing ratios assumed to represent background conditions based on a CO emission factor derived from boreal measurements. Results are generally consistent with the limited data reported for various vegetative types and emission phases measured in extratropical forests including boreal forests. The low correlation between fire product emission mixing ratios and the SF6 mixing ratio is consistent with no significant SF6 emissions from the biomass fires.

Original languageEnglish
Pages (from-to)-
Number of pages13
JournalGlobal Biogeochemical Cycles
Volume21
Issue number3
DOIs
Publication statusPublished - 8 Aug 2007

Keywords

  • TRANSFORM INFRARED-SPECTROSCOPY
  • BIOMASS-BURNING EMISSIONS
  • FOREST-FIRES
  • TRACE GASES
  • STRATOSPHERIC AEROSOL
  • ORGANIC-COMPOUNDS
  • CLIMATE-CHANGE
  • SAVANNA FIRES
  • ART.
  • CARBON

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