The Spatial Heterodyne Observations of Water instrument (SHOW) is a limb-sounding satellite prototype that is being developed to provide high spatial resolution measurements of water vapour in the upper troposphere and lower stratosphere region. In 2017, SHOW flew several flights on NASA's ER-2 airplane, allowing for sub-orbital demonstration of the measurement technique. Here, we present the results from the measurement campaign and examine the sampling capabilities of the instrument.

© 2018 The Author(s)

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