title: Preliminary meteorological results on Mars from the viking 1 lander.
abstract: The results from the meteorology instruments on the Viking 1 lander are presented for the first 4 sols of operation. The instruments are working satisfactorily. Temperatures fluctuated from a low of 188 degrees K to an estimated maximum of 244 degrees K. The mean pressure is 7.65 millibars with a diurnal variation of amplitude 0.1 millibar. Wind speeds averaged over several minutes have ranged from essentially calm to 9 meters per second. Wind directions have exhibited a remarkable regularity which may be associated with nocturnal downslope winds and gravitational oscillations, or to tidal effects of the diurnal pressure wave, or to both.
authors.forename: S L
authors.initials: SL
authors.lastname: Hess
authors.forename: R M
authors.initials: RM
authors.lastname: Henry
authors.forename: C B
authors.initials: CB
authors.lastname: Leovy
authors.forename: J A
authors.initials: JA
authors.lastname: Ryan
authors.forename: J E
authors.initials: JE
authors.lastname: Tillman
authors.forename: T E
authors.initials: TE
authors.lastname: Chamberlain
authors.forename: H L
authors.initials: HL
authors.lastname: Cole
authors.forename: R G
authors.initials: RG
authors.lastname: Dutton
authors.forename: G C
authors.initials: GC
authors.lastname: Greene
authors.forename: W E
authors.initials: WE
authors.lastname: Simon
authors.forename: J L
authors.initials: JL
authors.lastname: Mitchell