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Flight of SARA in the sky of the North Pole


The trace gas analyzer SARA (Spectroscopy by Amplified Resonant Absorption, also known as OF-CEAS) based on high-sensitivity absorption spectroscopy and developed at LIPhy, has flown the 24 April 2011 with the SPIRALE platform carried by a stratospheric balloon over the sky of Kiruna (Sweden). This allowed CO and CH4 concentration measurements from the ground up to a 14km altitude, providing results in perfect agreement with a more bulky and complex instrument already present on the SPIRALE platform. Such measurements are important since they allow to explore the effect of climatic change on the physical-chemistry of the atmosphere. The compact SARA instrument is thus validated for stratospheric measurements and will allow for easier analysis of atmospheric trace molecules during future field campaigns .
SARA in Kiruna
Details and results of the experiment

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