Surface ozone and its precursors at Summit, Greenland: comparison between observations and model simulations
نویسندگان
چکیده
منابع مشابه
Spring and summertime diurnal surface ozone fluxes over the polar snow at Summit, Greenland
[1] Continuous surface-layer ozone flux measurements over the polar, year-round snowpack at Summit, Greenland, resulted in deposition velocities (vd) that were smaller than most previous assumptions and model inputs. Substantial seasonal differences were seen in the ozone vd behavior. Spring, daytime ozone vd values showed low variability and were consistently 0.01 cm s . During summer, ozone f...
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The uptake of atmospheric ozone to the polar, year-round snowpack on glacial ice was studied at Summit, Greenland during three experiments in 2003, 2004, and 2005. Ozone was measured at up to three depths in the snowpack, on the surface, and above the surface at three heights on a tower along with supporting meteorological parameters. Ozone in interstitial air decreased with depth, albeit ozone...
متن کاملMeasurements of hydrogen peroxide and formaldehyde exchange between the atmosphere and surface snow at Summit, Greenland
Tower-based measurements of hydrogen peroxide (H2O2) and formaldehyde (HCHO) exchange were performed above the snowpack of the Greenland ice sheet. H2O2 and HCHO fluxes were measured continuously between 16 June and 7 July 2000, at the Summit Environmental Observatory. The fluxes were determined using coil scrubber-aqueous phase fluorometry systems together with micrometeorological techniques. ...
متن کاملSurface-atmosphere decoupling limits accumulation at Summit, Greenland
Despite rapid melting in the coastal regions of the Greenland Ice Sheet, a significant area (~40%) of the ice sheet rarely experiences surface melting. In these regions, the controls on annual accumulation are poorly constrained owing to surface conditions (for example, surface clouds, blowing snow, and surface inversions), which render moisture flux estimates from myriad approaches (that is, e...
متن کاملAir-snow exchange of HNO3 and NOy at Summit, Greenland
Ice core records of NO3deposition to polar glaciers could provide unrivaled information on past photochemical status and N cycling dynamics of the troposphere, if the ice core records could be inverted to yield concentrations of reactive N oxides in the atmosphere at past times. Limited previous investigations at Summit, Greenland, have suggested that this inversion may be difficult, since the ...
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ژورنال
عنوان ژورنال: Atmospheric Chemistry and Physics
سال: 2017
ISSN: 1680-7324
DOI: 10.5194/acp-17-14661-2017