Heating Efficiencies in the Thermosphere of Venus Reconsidered

Jane L. Fox

doi:10.1029/EO068i016p00260

Heating Efficiencies in the Thermosphere of Venus Reconsidered

Jane L. Fox

Physics

Research output: Contribution to conference › Presentation

Abstract

Recent models of the thermosphere of Venus have required heating efficiencies of 10% or less to reproduce the neutral temperatures derived from spacecraft measurements. We have computed lower bounds and probable values for the heating efficiencies using up-to-date information on the relevant elementary atomic and molecular processes. Altitude profiles of the efficiencies are presented. Values less than 15% are difficult to justify and probable values are near 20%. It is suggested that the heating efficiency should not be taken as a free parameter and that an additional cooling mechanism is needed.

Original language	American English
DOIs	https://doi.org/10.1029/EO068i016p00260
State	Published - Apr 21 1987
Event	AGU Spring Meeting - Baltimore, United States Duration: May 18 1987 → May 21 1987

Conference

Conference	AGU Spring Meeting
Country/Territory	United States
City	Baltimore
Period	5/18/87 → 5/21/87

Disciplines

Astrophysics and Astronomy
Physical Sciences and Mathematics
Physics

Access to Document

10.1029/EO068i016p00260

Cite this

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title = "Heating Efficiencies in the Thermosphere of Venus Reconsidered",

abstract = " Recent models of the thermosphere of Venus have required heating efficiencies of 10% or less to reproduce the neutral temperatures derived from spacecraft measurements. We have computed lower bounds and probable values for the heating efficiencies using up-to-date information on the relevant elementary atomic and molecular processes. Altitude profiles of the efficiencies are presented. Values less than 15% are difficult to justify and probable values are near 20%. It is suggested that the heating efficiency should not be taken as a free parameter and that an additional cooling mechanism is needed.",

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year = "1987",

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doi = "10.1029/EO068i016p00260",

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AU - Fox, Jane L.

PY - 1987/4/21

Y1 - 1987/4/21

N2 - Recent models of the thermosphere of Venus have required heating efficiencies of 10% or less to reproduce the neutral temperatures derived from spacecraft measurements. We have computed lower bounds and probable values for the heating efficiencies using up-to-date information on the relevant elementary atomic and molecular processes. Altitude profiles of the efficiencies are presented. Values less than 15% are difficult to justify and probable values are near 20%. It is suggested that the heating efficiency should not be taken as a free parameter and that an additional cooling mechanism is needed.

AB - Recent models of the thermosphere of Venus have required heating efficiencies of 10% or less to reproduce the neutral temperatures derived from spacecraft measurements. We have computed lower bounds and probable values for the heating efficiencies using up-to-date information on the relevant elementary atomic and molecular processes. Altitude profiles of the efficiencies are presented. Values less than 15% are difficult to justify and probable values are near 20%. It is suggested that the heating efficiency should not be taken as a free parameter and that an additional cooling mechanism is needed.

UR - https://corescholar.libraries.wright.edu/physics/511

U2 - 10.1029/EO068i016p00260

DO - 10.1029/EO068i016p00260

M3 - Presentation

T2 - AGU Spring Meeting

Y2 - 18 May 1987 through 21 May 1987

ER -

Heating Efficiencies in the Thermosphere of Venus Reconsidered

Abstract

Conference

Disciplines

Access to Document

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Cite this