Measurements of 35S in the marine boundary layer at La Jolla, California: A new technique for tracing air mass mixing during Santa Ana events

Measurements of 35S in the marine boundary layer at La Jolla, California: A new technique for tracing air mass mixing during Santa Ana events

35S (t1/2 = ∼87 days) is a radioactive isotope that is naturally produced in the upper atmosphere by the interaction of cosmic rays with 40Ar. In the atmosphere, 35S oxidizes to 35SO2, which further oxidizes to 35SO42− depending on the oxidative rates. Here, we report measurements of 35S activity in...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of Geophysical Research: Atmospheres 2012-04, Vol.117 (D8), p.n/a
Hauptverfasser: Priyadarshi, Antra, Hill-Falkenthal, Jason, Coupal, Elena, Dominguez, Gerardo, Thiemens, Mark H.
Format: Artikel
Sprache:eng
Schlagworte:
Earth sciences
Earth, ocean, space
Exact sciences and technology
radioactive 35 sulfur
Santa Ana
stratospheric-tropospheric mixing
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:35S (t1/2 = ∼87 days) is a radioactive isotope that is naturally produced in the upper atmosphere by the interaction of cosmic rays with 40Ar. In the atmosphere, 35S oxidizes to 35SO2, which further oxidizes to 35SO42− depending on the oxidative rates. Here, we report measurements of 35S activity in both 35SO2 (gas) and 35SO42− (aerosol) (coarse, >1.5 μm; and fine,
ISSN:0148-0227
2156-2202
DOI:10.1029/2011JD016878