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dc.contributor.authorCho, John Y. N.
dc.contributor.authorZhu, Yong
dc.contributor.authorNewell, Reginald E.
dc.contributor.authorAnderson, Bruce E.
dc.contributor.authorBarrick, John D.
dc.contributor.authorGregory, Gerald L.
dc.contributor.authorSachse, Glen W.
dc.contributor.authorCarroll, Mary Anne
dc.contributor.authorAlbercook, George M.
dc.date.accessioned2017-09-21T18:25:17Z
dc.date.available2017-09-21T18:25:17Z
dc.date.issued1999-03
dc.date.submitted1997-11
dc.identifier.issn2169-8996
dc.identifier.issn2169-897X
dc.identifier.urihttp://hdl.handle.net/1721.1/111610
dc.description.abstractAircraft-based meteorological and chemical measurements from NASA's Pacific Exploratory Missions provide a suitable database for studying the climatology of horizontal wavenumber spectra in the troposphere overlying an ocean. The wavenumber spectra of trace gas and meteorological quantities aid in identifying the physical processes producing atmospheric structures as well as provide diagnostics for general circulation models. Flight segments were distributed over altitudes ranging from about ∼50 m to 13 km and 70°S to 60°N in latitude. The spectra were averaged according to altitude and latitude regions. The wavelength range covered was typically ∼0.5–100 km. Quantities processed in this way were horizontal velocity, potential temperature, specific humidity, and the mixing ratios of ozone, methane, carbon monoxide, and carbon dioxide. Spectral power and slope (in log-log coordinates) corresponding to the wavelength regime of 6–60 km were tabulated for those measured quantities. The spectral slopes of horizontal velocity and potential temperature were generally close to −5/3 with no transition to a steeper slope at short wavelengths as seen in some other studies. Spectral slopes of the tracer species also ranged around −5/3. This agreement in form of the dynamical and tracer spectra is consistent with both the gravity-wave advection and quasi two-dimensional turbulence models. In the upper troposphere the spectral power for all quantities except specific humidity tended to be greater at latitudes higher than 30° compared to latitudes lower than 30°. This latitudinal trend confirms the earlier results of the Global Atmospheric Sampling Program.en_US
dc.description.sponsorshipUnited States. National Aeronautics and Space Administration (Grant NAG1-1758)en_US
dc.description.sponsorshipUnited States. National Aeronautics and Space Administration (Grant NAG1-1901)en_US
dc.language.isoen_US
dc.publisherAmerican Geophysical Union (AGU)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1029/98JD01825en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceJohn Choen_US
dc.titleHorizontal wavenumber spectra of winds, temperature, and trace gases during the Pacific Exploratory Missions: 1. Climatologyen_US
dc.typeArticleen_US
dc.identifier.citationCho, John Y. N. et al. “Horizontal Wavenumber Spectra of Winds, Temperature, and Trace Gases During the Pacific Exploratory Missions: 1. Climatology.” Journal of Geophysical Research: Atmospheres 104, D5 (March 1, 1999): 5697–5716 © 1999 American Geophysical Unionen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciencesen_US
dc.contributor.approverCho, John, Y. N.en_US
dc.contributor.mitauthorCho, John Y. N.
dc.contributor.mitauthorZhu, Yong
dc.contributor.mitauthorNewell, Reginald E.
dc.relation.journalJournal of Geophysical Research: Atmospheresen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsCho, John Y. N.; Zhu, Yong; Newell, Reginald E.; Anderson, Bruce E.; Barrick, John D.; Gregory, Gerald L.; Sachse, Glen W.; Carroll, Mary Anne; Albercook, George M.en_US
dspace.embargo.termsNen_US
mit.licensePUBLISHER_POLICYen_US


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