Can I read Accurate and Consistent Microwave Observations of Venus and Their Implications on EtoBox?

Accurate and Consistent Microwave Observations of Venus and Their Implications by Bryan J. Butler; Paul G. Steffes; Shady H. Suleiman; Marc A. Kolodner; Jon M. Jenkins is a Physics and Astronomy article available to read on EtoBox.

What is Accurate and Consistent Microwave Observations of Venus and Their Implications about?

We present observations of Venus at six frequencies: 1.385, 1.465, 4.86, 8.44, 14.94, and 22.46 GHz. These were obtained with the Very Large Array and calibrated in a consistent fashion. The brightness temperature of Venus at the six frequencies is derived and compared to a model which includes the emission from the atmosphere, surface, and subsurface of Venus. A single set of model inputs can fit the higher frequency data, where the emission comes mostly from the atmosphere. At the lower frequencies, where emission comes mostly from the surface and subsurface, the model has difficulty reproducing the measurements, and the lowest two frequencies are not reproduced well at all. Improvements in this model over past models include new formalisms for the microwave opacity of SO 2 and H 2 SO 4 and incorporation of measured topography and surface characteristics from Magellan. The inputs to the model which best fit the higher frequency data include a relatively warm temperature profile (more consistent with the Mariner V occultation temperature profile than that from the Pioneer-Venus sounders), a disk-averaged abundance of gaseous H 2 SO 4 of 1-2.5 ppm at and just below the lower cloud

Who reads Accurate and Consistent Microwave Observations of Venus and Their Implications?

Author

Bryan J. Butler; Paul G. Steffes; Shady H. Suleiman; Marc A. Kolodner; Jon M. Jenkins

Publisher

Elsevier Science; Elsevier ; Elsevier Inc.; Elsevier BV; Oxford University Press (OUP) (ISSN 0019-1035)

Published

2001

Language

EN

Field

Physics and Astronomy (Physical Sciences)