Title:
New model for the 5-20 cm wavelength opacity of ammonia pressure-broadened by methane under jovian conditions based on laboratory measurements

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dc.contributor.advisor Steffes, Paul G.
dc.contributor.author Chinsomboon, Garrett en_US
dc.contributor.committeeMember Durgin, Gregory D.
dc.contributor.committeeMember Scott, Waymond R.
dc.contributor.department Electrical and Computer Engineering en_US
dc.date.accessioned 2013-01-17T21:51:26Z
dc.date.available 2013-01-17T21:51:26Z
dc.date.issued 2012-10-12 en_US
dc.description.abstract In order to fully understand the role methane (CH₄) plays in the microwave emission spectra of the deep atmospheres of the outer planets, over 280 laboratory measurements of the opacity of ammonia in a methane environment have been made in the 5-20 cm wavelength range. All opacity measurements were made with either 100 or 200 mbars of ammonia and with 1 to 3 bars of added methane in the 330-450K temperature range. A formalism for the absorptivity of ammonia broadened by methane has now been developed and had been applied to the Hanley et al. (Icarus, v. 202, 2009) model for the opacity of ammonia. Due to methane's relatively low abundance at Jupiter (~0.2% by volume), its effect on the microwave spectrum which will be observed by the Juno MWR (Microwave Radiometer) will be minimal. However, these experimental results will significantly improve the understanding of the microwave emission spectrum of Uranus and Neptune where methane plays a more dominant role. en_US
dc.description.degree MS en_US
dc.identifier.uri http://hdl.handle.net/1853/45858
dc.publisher Georgia Institute of Technology en_US
dc.subject Planetary atmospheres en_US
dc.subject NASA Juno mission en_US
dc.subject Atmosphere of Jupiter en_US
dc.subject Centimeter-wavelength measurements en_US
dc.subject Methane broadening of ammonia en_US
dc.subject Microwave opacity model en_US
dc.subject Georgia Tech planetary atmospheric simulator en_US
dc.subject.lcsh Jupiter (Planet) Atmosphere
dc.subject.lcsh Centimeter waves
dc.subject.lcsh Microwaves
dc.subject.lcsh Wavelengths
dc.title New model for the 5-20 cm wavelength opacity of ammonia pressure-broadened by methane under jovian conditions based on laboratory measurements en_US
dc.type Text
dc.type.genre Thesis
dspace.entity.type Publication
local.contributor.advisor Steffes, Paul G.
local.contributor.corporatename School of Electrical and Computer Engineering
local.contributor.corporatename College of Engineering
relation.isAdvisorOfPublication c3d19a17-5d56-4df3-a89a-d5d07477b568
relation.isOrgUnitOfPublication 5b7adef2-447c-4270-b9fc-846bd76f80f2
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
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