Previous studies of other volcanoes have revealed a change in gas composition prior to an eruption that could serve as an early detection mechanism. (discovermagazine.com)
However, the appropriate blend concentration may vary significantly between pipeline network systems and natural gas compositions and must therefore be assessed on a case - by - case basis. (powermag.com)
We provide an extensive new sub-millimetre survey of the trace gas composition of Saturn's atmosphere using the broad spectral range (15 — 51 cm - 1) and high spectral resolution (0.048 cm - 1) offered by Fourier transform spectroscopy by the Herschel / SPIRE instrument (Spectral and Photometric Imaging REceiver). (aanda.org)