%0 Journal Article %T Variability of the nitric oxide nightglow at Venus during solar minimum %+ Laboratory for Atmospheric and Space Physics [Boulder] (LASP) %+ PLANETO - LATMOS %A Royer, Emilie M. %A Montmessin, Franck %A Marcq, Emmanuel %Z French Ministry for Research (MENRT funds) %Z Centre National de la recherche Scientifique (CNRS) %Z Venus Express mission %< avec comité de lecture %@ 2169-9097 %J Journal of Geophysical Research. Planets %I Wiley-Blackwell %V 121 %N 5 %P 846-853 %8 2016 %D 2016 %R 10.1002/2016JE005013 %K Venus %K Upper atmosphere %K Airglow %K Nitric Oxide %Z Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP]Journal articles %X We present results from a NO airglow inversion method based on Venus Express data acquired from 2006 to 2010, during the last solar minimum period. We retrieve an altitude of 114 ± 10 km for the emission peak of the NO layer, with an associated scale height of 20 ± 10 km and an average limb brightness of 59.3 kR with a standard deviation of 63 kR. The inversion method allows for the quantification of the horizontal homogeneity of the NO layer. Images of the SPICAV field of view show a great variability of airglow morphologies, with NO layers that can be horizontally homogenous and continuous over distances exceeding 100 km, as well as sporadic patches of NO on a smaller horizontal scale. Frequent secondary emissions seen at lower tangent altitudes are the signatures of the complex dynamics of the upper Venusian atmosphere. %G English %2 https://insu.hal.science/insu-01309689/document %2 https://insu.hal.science/insu-01309689/file/2016JE005013.pdf %L insu-01309689 %U https://insu.hal.science/insu-01309689 %~ INSU %~ UPMC %~ CNRS %~ LATMOS %~ UVSQ %~ UNIV-PARIS-SACLAY %~ UVSQ-SACLAY %~ UPMC_POLE_3 %~ SORBONNE-UNIVERSITE %~ SU-SCIENCES %~ UVSQ-UPSACLAY %~ SU-TI %~ GS-ENGINEERING %~ GS-PHYSIQUE %~ INSTITUT-SCIENCES-LUMIERE %~ ALLIANCE-SU