Results 191 to 200 of about 4,918 (242)

Terrestrial atmospheric ion implantation occurred in the nearside lunar regolith during the history of Earth's dynamo. [PDF]

Commun Earth Environ
Paramanick S, Blackman EG, Tarduno JA, Carroll-Nellenback J.   +3 more
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A Two-Layer Model of Venus' Atmosphere /Interpretations of Radar Observations/

, 1967
A. D. Kuzmin, Y. N. Vetukhnovskaya
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Models of Venus Atmosphere

2012
In the context of an International Space Science Institute(ISSI) working group, we have conducted a project to compare the most recent General Circulation Models (GCMs) of the Venus atmospheric circulation. A common configuration has been decided, with simple physical parametrization for the solar forcing and the boundary layer scheme.
Lebonnois, Sebastien, Lee, Christopher, Yamamoto, Masaru, Dawson, Jonathan, Lewis, Stephen R., Mendonca, Joao, Read, Peter, Parish, Helen F., Schubert, Gerald, Bengtsson, Lennart, Grinspoon, David, Limaye, Sanjay S., Schmidt, Hauke, Svedhem, H̊akan, Titov, Dimitri V.   +14 more
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Engineering models of the Venus atmosphere

11th Aerospace Sciences Meeting, 1973
Engineering models of the Mars atmosphere are presented for use in spacecraft design and mission planning. The models are developed from (1) data measured by the U.S. Mariner 4, 6, 7, and 9 and USSR Mars 2 and 3 spacecraft, (2) earth-based measurements, and (3) theory which best satisfies the observations. The models include a nominal model for a clear
RICHARD B. NOLL, MICHAEL B. McELROY
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Venera 4 Probes Atmosphere of Venus

Science, 1968
The atmospheric data and information on trajectory received from Venera 4 together provide consistent and firm evidence of its success in reaching the surface of Venus.
D E, Reese, P R, Swan
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Structure of the Venus atmosphere

Planetary and Space Science, 2007
Abstract The structure of the Venus atmosphere is discussed. The data obtained in the 1980s by the last Soviet missions to Venus: orbiters Venera 15, 16 and the entry probes and balloons of Vega 1 and 2 are compared with the Venus International Reference Atmosphere (VIRA) model. VIRA is based on the data of the extensive space investigations of Venus
L.V. Zasova, N. Ignatiev, I. Khatuntsev, V. Linkin   +3 more
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The atmosphere of Venus

Uspekhi Fizicheskih Nauk, 1971
CONTENTS 1. Chemical Composition 317 2. Temperature, Pressure, Density 319 3. Cloud Layer 325 4. Thermal Regime 328 5. General Circulation 331 6. Upper Atmosphere 332 7. Origin and Evolution 335 8.
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Composition and Structure of the Venus Atmosphere: Results from Pioneer Venus

Science, 1979
Results from the Pioneer Venus sounder probe neutral mass spectrometer indicate that there is no difference in the isotopic ratios of carbon and oxygen between Venus and Earth to within ± 5 percent. The mixing ratio of nitrogen is 3.5 +3 -2 percent with an isotopic ratio within 20 percent of that of ...
J H, Hoffman, R R, Hodges, M B, McElroy, T M, Donahue, M, Kolpin   +4 more
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Pioneer Venus gas chromatography of the lower atmosphere of Venus

Journal of Geophysical Research: Space Physics, 1980
A gas Chromatograph mounted in the Pioneer Venus sounder probe measured the chemical composition of the atmosphere of Venus at three altitudes. Ne, N2, O2, Ar, CO, H2O, SO2, and CO2 were measured, and upper limits set for H2, COS, H2S, CH4, Kr, N2O, C2H4, C2H6, and C3H8. Simulation studies have provided indirect evidence for sulfuric acid‐like droplets
V. I. Oyama, G. C. Carle, F. Woeller, J. B. Pollack, R. T. Reynolds, R. A. Craig   +5 more
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