Deposition of atmospheric nitrous acid on alkaline snow surfaces
The photolysis of atmospheric nitrous acid (HONO) is a significant source of OH radicals in remote and Polar Regions. HONO is produced in/on snow surfaces in a photochemical reaction from nitrate ions. In an attempt to quantify the production of HONO at a snow covered mid-latitude location we made measurements of HONO fluxes for a 10-day period at the Mt. Cimone (MTC) research station in the Italian northern Apennines (2165 m asl) during March 2004. Production fluxes under normal background conditions were small, and reached maximum values of 20 nmol m-2 h-1 on only two occasions. However, during a transport event of Saharan dust to MTC we observed deposition fluxes of up to -120 nmol m-2 h-1 of HONO on to the snow surface. The deposited Sahara dust had rendered the surface snow alkaline, so that large amounts of acids could be absorbed from the atmosphere.
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Citation proposal
Paolo Bonasoni (Institute of Atmospheric Sciences and Climate (ISAC) - CNR) - Paolo Cristofanelli (Institute of Atmospheric Sciences and Climate (ISAC) - CNR) - H. J. Beine (CNR - Institute of Atmospheric Pollution Research) - Antonio Amoroso (CNR - Institute of Atmospheric Pollution Research) - Giulio Esposito (CNR - Institute of Atmospheric Pollution Research) - Roberto Sparapani (CNR -POLARNET) - Antonietta Ianniello (CNR - Institute of Atmospheric Pollution Research) - Teodoro Georgiadis (IBIMET-CNR) - Marianna Nardino (IBIMET-CNR) - Florent Dominé (Laboratory of Glaciology and Geophysics of the Environment (LGGE)) (2005) . Deposition of atmospheric nitrous acid on alkaline snow surfaces. American Geophysical Union (AGU) https://geoportal.mountaingenius.org/geonetwork/srv/api/records/a2dceccc-0a1f-4ce4-8740-0c913a59e1f2 |
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- 2005-05-20T00:00:00
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- GEOPHYSICAL RESEARCH LETTERS, VOL. 32, L10808, 4 PP., 2005
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- GEOPHYSICAL RESEARCH LETTERS, VOL. 32, 2005
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- 0094–8276
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- Completed
Author
Institute of Atmospheric Sciences and Climate (ISAC) - CNR
-
Paolo Bonasoni
( )
Via Gobetti 101
Bologna
BO
40129
Italy
Author
Institute of Atmospheric Sciences and Climate (ISAC) - CNR
-
Paolo Cristofanelli
( )
Via Gobetti,101
Bologna
BO
40129
Italy
Author
CNR - Institute of Atmospheric Pollution Research
-
H. J. Beine
( )
V. Salaria Km 29,300,
Monterotondo
ROMA
00015
Italy
Author
CNR - Institute of Atmospheric Pollution Research
-
Antonio Amoroso
( )
c/o: UNICAL-Polifunzionale
Rende
CS
87036
Italy
Author
CNR - Institute of Atmospheric Pollution Research
-
Giulio Esposito
( )
V. Salaria Km 29,300,
Monterotondo
ROMA
00015
Italy
Author
CNR -POLARNET
-
Roberto Sparapani
( )
Via Fosso del Cavaliere, 100
Roma
00133
United States of America
Author
CNR - Institute of Atmospheric Pollution Research
-
Antonietta Ianniello
( )
V. Salaria Km 29,300,
Monterotondo
ROMA
00015
Italy
Author
Author
Author
Laboratory of Glaciology and Geophysics of the Environment (LGGE)
-
Florent Dominé
( )
BP 96, 54 rue Molière
Saint Martin d'Hères cedex
38402
France
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American Geophysical Union (AGU)
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2000 Florida Avenue N.W.
Washington, DC 20009
1277
United States of America
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- atmospheric nitrous acid , Troposphere , Global Change
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- Mt. Cimone
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Abstract:"Deposition of atmospheric nitrous acid on alkaline snow surfaces".
Abstract:"Deposition of atmospheric nitrous acid on alkaline snow surfaces".
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beine05_2005GL022589.pdf
Full Text(pdf):""Deposition of atmospheric nitrous acid on alkaline snow surfaces".
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"Deposition of atmospheric nitrous acid on alkaline snow surfaces".
GEOPHYSICAL RESEARCH LETTERS, VOL. 32, L10808, doi:10.1029/2005GL022589, 2005.
Beine, H.J., Amoroso, A., Esposito, G., Sparapani, R., Ianniello, A., Georgiadis, T., Nardino, M., Bonasoni, P., Cristofanelli, P., Domine', F.
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- eng
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- 2012-03-05T16:11:45
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- 1.0
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