Other
Scientific paper
Nov 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002georl..29u...7s&link_type=abstract
Geophysical Research Letters, Volume 29, Issue 21, pp. 7-1, CiteID 2011, DOI 10.1029/2002GL015703
Other
5
Atmospheric Composition And Structure: Troposphere-Composition And Chemistry
Scientific paper
The first measurements of pernitric acid at the South Pole were performed during the second Investigation of Sulfur Chemistry in the Antarctic Troposphere (ISCAT 2000). Observed HO2NO2 concentrations averaged 25 pptv. Simple steady-state calculations constrained by measurements show that the lifetime of pernitric acid was largely controlled by dry deposition, with thermal decomposition becoming increasingly important at warmer temperatures. We determined that the pernitric acid equilibrium constant is less uncertain than indicated in the literature. One consequence of pernitric acid deposition to the snow surface is that it is an important sink for both NOx and HOx. Another is that the photochemistry of HO2NO2 in the Antarctic snowpack may be a NOx source in addition to nitrate photolysis. This might be one of the important differences in snow photochemistry between the South Pole and warmer polar sites.
Buhr M.
Chen Gang
Davis Damek
Dibb Jack E.
Eisele Fred L.
No associations
LandOfFree
Measurements of pernitric acid at the South Pole during ISCAT 2000 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Measurements of pernitric acid at the South Pole during ISCAT 2000, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurements of pernitric acid at the South Pole during ISCAT 2000 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-741160