Laboratory evaluation and application of microwave absorption properties under simulated conditions for planetary atmospheres. Semiannual status report, 1 February-31 July 1988

Technical Report · Fri Jan 01 04:00:00 EST 1988

OSTI ID:6642966

Steffes, P G

In the first half of this grant year, laboratory measurements were conducted on the millimeter-wave properties of atmospheric gases under simulated conditions for the outer planet. Significant improvements in the current system have made it possible to accurately characterize the opacity from gaseous NH/sub 3/ at longer millimeter wavelengths (7 to 10 mm) under simulated Jovian conditions. In the second half of the grant year, it is hoped to extend such measurements to even shorter millimeter-wavelengths. Further analysis and application of the laboratory results to microwave and millimeter-wave absorption data for the outer planets, such as results from Voyager Radio Occultation experiments and earth-based radio astronomical observations will be continued. The analysis of available multispectral microwave opacity data from Venus, including data from the most recent radio astronomical ovservations in the 1.3 to 3.6 cm wavelength range and newly obtained Pioneer-Venus Radio Occulatation measurements at 13 cm, using the laboratory measurements as an interpretative tool will be pursued.

• Research Organization: Georgia Inst. of Tech., Atlanta (USA)
• OSTI ID: 6642966
• Report Number(s): N-88-29653; NASA-CR-182443; NAS-1.26:182443; SASR-9
• Country of Publication: United States
• Language: English

Related Subjects

640107* -- Astrophysics & Cosmology-- Planetary Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTIVITY
AMMONIA
ATMOSPHERES
DATA
DOCUMENT TYPES
ELECTROMAGNETIC RADIATION
EXPERIMENTAL DATA
HYDRIDES
HYDROGEN COMPOUNDS
INFORMATION
JUPITER PLANET
MICROWAVE RADIATION
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NUMERICAL DATA
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
PLANETARY ATMOSPHERES
PLANETS
PROGRESS REPORT
RADIATIONS
SIMULATION
VENUS PLANET