A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Observation of coinciding arctic boundary layer ozone depletion and snow surface emissions of nitrous acid
AbstractMeasurements of snow surface—atmosphere exchange fluxes of nitrous acid at Ny-Ålesund, Svalbard during springtime confirmed earlier findings that no significant emissions occurred from alkaline snow surfaces at this marine high Arctic location. On 29 April 2004 air arriving from the North Pole brought both ozone depleted air and significant snowfall. On that day we observed HONO emission fluxes of up to 40nmolm−2h−1. These emissions were made possible by the combination of two independent phenomena. The acidic snow allowed the transport of NO3− ions to photochemically reactive areas and the release of produced HONO from the snow interstitial air; while the absence of ozone likely increased the HONO/NO fraction over that of NO2 in the snow interstitial air.
Observation of coinciding arctic boundary layer ozone depletion and snow surface emissions of nitrous acid
AbstractMeasurements of snow surface—atmosphere exchange fluxes of nitrous acid at Ny-Ålesund, Svalbard during springtime confirmed earlier findings that no significant emissions occurred from alkaline snow surfaces at this marine high Arctic location. On 29 April 2004 air arriving from the North Pole brought both ozone depleted air and significant snowfall. On that day we observed HONO emission fluxes of up to 40nmolm−2h−1. These emissions were made possible by the combination of two independent phenomena. The acidic snow allowed the transport of NO3− ions to photochemically reactive areas and the release of produced HONO from the snow interstitial air; while the absence of ozone likely increased the HONO/NO fraction over that of NO2 in the snow interstitial air.
Observation of coinciding arctic boundary layer ozone depletion and snow surface emissions of nitrous acid
Amoroso, Antonio (author) / Beine, Harry J. (author) / Sparapani, Roberto (author) / Nardino, Marianna (author) / Allegrini, Ivo (author)
Atmospheric Environment ; 40 ; 1949-1956
2005-11-04
8 pages
Article (Journal)
Electronic Resource
English
Impact of future nitrous oxide and carbon dioxide emissions on the stratospheric ozone layer
| DOAJ | 2015
Evaluation of spring snow covered area depletion in the Canadian Arctic from NOAA snow charts
| Online Contents | 2005
Heartbeat Country: Conflicting values, coinciding visions
| Online Contents | 1999
The Antarctic ozone depletion caused by Erebus volcano gas emissions
| Elsevier | 2015