An improved inlet for precisely measuring the atmospheric Ar/N 2 ratio

Blaine, T. W.; Keeling, R. F.; Paplawsky, W. J.

The atmospheric Ar/N 2 ratio is expected to be useful as a tracer of air-sea heat exchange, but this application has been hindered in part due to sampling artifacts. Here we show that the variability in δ(Ar/N 2) due to thermal fractionation at the inlet can be on the order of 40-80 per meg, and we introduce the use of an aspirated solar shield that successfully minimizes such fractionation. The data collected using this new inlet have a mean diurnal cycle of 1.0 per meg or less, suggesting that any residual thermal fractionation effect is reduced to this level.

Zitieren

Zitierform:

Blaine, T. W. / Keeling, R. F. / Paplawsky, W. J.: An improved inlet for precisely measuring the atmospheric Ar/N2 ratio. 2006. Copernicus Publications.

Zugriffsstatistik

Gesamt:
Volltextzugriffe:
Metadatenansicht:
12 Monate:
Volltextzugriffe:
Metadatenansicht:

Grafik öffnen

Rechte

Rechteinhaber: T. W. Blaine et al.

Nutzung und Vervielfältigung:

Export