- Zuletzt aktualisiert
- 17. Juli 2025
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Beschreibung
Earth’s snow cover is very dynamic on diurnal time scales. The changes to the snow structure during this metamorphism have wide ranging impacts such as on avalanche formation and on the capacity of surface snow to exchange trace gases with the atmosphere. Here, we investigate the influence of dry metamorphism, which involves fluxes of water vapor, on the chemical reactivity of bromide in the snow. For this, the heterogeneous reactive loss of ozone at a concentration of 5-6E12 molecules cm-3 is investigated in artificial, shock-frozen snow samples doped with 6.2 uM sodium bromide and with varying metamorphism history. The oxidation of bromide in snow is one reaction initiating polar bromine releases and ozone depletions.
Ressourcen
- PDF Readme file
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Zusätzliche Informationen
- Identifier
- b6633dad-a0a5-497e-b393-d7c6ee018c0a@envidat
- Publikationsdatum
- 20. Februar 2020
- Änderungsdatum
- 17. Juli 2025
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- Englisch
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- https://www.envidat.ch/#/metadata/labchemistrymetamorphism
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