title: Images from galileo of the venus cloud deck.
abstract: Images of Venus taken at 418 (violet) and 986 [near-infrared (NIR)] nanometers show that the morphology and motions of large-scale features change with depth in the cloud deck. Poleward meridional velocities, seen in both spectral regions, are much reduced in the NIR In the south polar region the markings in the two wavelength bands are strongly anticorrelated. The images follow the changing state of the upper cloud layer downwind of the subsolar point, and the zonal flow field shows a longitudinal periodicity that may be coupled to the formation of large-scale planetary waves. No optical lightning was detected.
authors.forename: M J
authors.initials: MJ
authors.lastname: Belton
authors.forename: P J
authors.initials: PJ
authors.lastname: Gierasch
authors.forename: M D
authors.initials: MD
authors.lastname: Smith
authors.forename: P
authors.initials: P
authors.lastname: Helfenstein
authors.forename: P J
authors.initials: PJ
authors.lastname: Schinder
authors.forename: J B
authors.initials: JB
authors.lastname: Pollack
authors.forename: K A
authors.initials: KA
authors.lastname: Rages
authors.forename: A P
authors.initials: AP
authors.lastname: Ingersoll
authors.forename: K P
authors.initials: KP
authors.lastname: Klaasen
authors.forename: J
authors.initials: J
authors.lastname: Veverka
authors.forename: C D
authors.initials: CD
authors.lastname: Anger
authors.forename: M H
authors.initials: MH
authors.lastname: Carr
authors.forename: C R
authors.initials: CR
authors.lastname: Chapman
authors.forename: M E
authors.initials: ME
authors.lastname: Davies
authors.forename: F P
authors.initials: FP
authors.lastname: Fanale
authors.forename: R
authors.initials: R
authors.lastname: Greeley
authors.forename: R
authors.initials: R
authors.lastname: Greenberg
authors.forename: J W
authors.initials: JW
authors.lastname: Head
authors.forename: D
authors.initials: D
authors.lastname: Morrison
authors.forename: G
authors.initials: G
authors.lastname: Neukum
authors.forename: C B
authors.initials: CB
authors.lastname: Pilcher