Deposition of dinitrogen pentoxide, N2O5, to the snowpack at high latitudes
Item
Title (Dublin Core)
Deposition of dinitrogen pentoxide, N2O5, to the snowpack at high latitudes
Description (Dublin Core)
Dinitrogen pentoxide, N<sub>2</sub>O<sub>5</sub>, is an important nighttime intermediate in the oxidation of NO<sub>x</sub> that is hydrolysed on surfaces. We conducted a field campaign in Fairbanks, Alaska during November 2009 to measure the gradient and derive a flux (and deposition velocity) of N<sub>2</sub>O<sub>5</sub> depositing to snowpack using the aerodynamic gradient method. The deposition velocity of N<sub>2</sub>O<sub>5</sub> under Arctic winter conditions was found to be 0.59 ± 0.47 cm s<sup>−1</sup>, which is the first measurement of this parameter to our knowledge. Based on the measured deposition velocity, we compared the chemical loss rate of N<sub>2</sub>O<sub>5</sub> via snowpack deposition to the total steady state loss rate and found that deposition to snowpack is at least 1/8th of the total chemical removal of N<sub>2</sub>O<sub>5</sub> that is located within the first few meters above the ground surface.
Creator (Dublin Core)
Huff, D. M.
Joyce, P. L.
Fochesatto, G. J.
Simpson, W. R.
Date (Dublin Core)
2018-01-15
Type (Dublin Core)
Text
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
10.5194/acp-11-4929-2011
https://acp.copernicus.org/articles/11/4929/2011/
Source (Dublin Core)
eISSN: 1680-7324
Language (Dublin Core)
eng
