0000000000263370

AUTHOR

C. Feigl

showing 2 related works from this author

Abstracts of the 6th FECS Conference 1998 Lectures.

1998

International audience

[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere010504 meteorology & atmospheric sciencesHealth Toxicology and MutagenesisMEDLINE[CHIM.CATA]Chemical Sciences/CatalysisGeneral Medicine010501 environmental sciences01 natural sciencesPollutionEngineering physics[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Environmental ChemistryEnvironmental scienceEngineering ethics[PHYS.COND]Physics [physics]/Condensed Matter [cond-mat]ComputingMilieux_MISCELLANEOUS0105 earth and related environmental sciencesEnvironmental science and pollution research international
researchProduct

HNO3 partitioning in cirrus clouds

1999

During the 1997 POLSTAR-1 winter campaign in northern Sweden a flight was performed across a cold trough of air (similar or equal to 196 K) in the tropopause region. Measurements of total water vapour, nitric acid, particles and reactive nitrogen (NOy) were taken. The particle measurements indicate that about 3% of the particles in the moist tropospheric air were ice particles. Forward and backward facing NOy inlets were used simultaneously to determine condensed phase HNO3. The combined NOy and particle measurements reveal that less than 1% of a monolayer of NOy could have resided on the ice particles. This casts doubt on the hypothesis that sedimenting cirrus particles generally lead to a…

Ice cloudReactive nitrogenAtmospheric sciencesJTropospherechemistry.chemical_compoundGeophysicschemistryNitric acidddc:550General Earth and Planetary SciencesEnvironmental scienceCirrusNitrogen oxideTropopauseWater vapor
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