Detection of the surface of Venus at 1.0 μm from ground-based observations
作者： J. Lecacheux , P. Drossart , P. Laques , F. Deladerriére , F. Colas
DOI: 10.1016/0032-0633(93)90035-Z
关键词: Venus 、 Emissivity 、 Materials science 、 Emission spectrum 、 Flux 、 Astrophysics 、 Optics 、 Planet 、 Atmosphere 、 Atmosphere of Venus 、 Atmospheric radiative transfer codes
摘要: Abstract Thermal emission from the nightside of Venus has been observed at 1.0 μm during fall 1991 on 1.05 m reflector Pic-du-Midi. The instrumental spectral response was centred in window atmosphere, located between strong absorptions CO 2 . Synthetic calculations by a radiative transfer model atmosphere show that is transparent enough these wavelengths to allow contribution surface be transmitted through clouds. flux sensitive temperature, which controlled altitude. Low features are disc, well correlated with topographic maps Magellan ; do follow solid rotation planet. An upper limit about 10% can put variations emissivity μm, Aphrodite Terra region where large radar have
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