rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Radar Observations of MJO and Kelvin Wave Interactions During DYNAMO/AMIE/CINDY2011
  name:
    name part: DePasquale, Amanda Michele
    role:
      role term: creator
    role:
      role term: author.
  name:
    name part: Schumacher, Courtney
    role:
      role term: thesis advisor.
  name:
    name part: Rapp, Anita D.
    role:
      role term: thesis advisor.
  name:
    name part: Texas A & M University
    role:
      role term: degree granting institution.
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: txu
    date issued: 2013
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: remote
    extent: 1 online resource.
  abstract: The Madden-Julian Oscillation (MJO), a tropical phenomenon that exists on the time scale of 30-90 days, commonly initiates over the Indian Ocean and slowly propagates into the western Pacific as a series of convective events, which have time scales on the order of hours or days. These events and the overall MJO convective envelope may interact with convectively coupled waves such as Kelvin waves that propagate more rapidly eastward with time scales of 3-5 days. Radar and sounding data collected during the DYNAMO/AMIE/CINDY2011 field campaign from October 2011 to February 2012 in the central Indian Ocean are used to study the interaction between Kelvin waves and the MJO in terms of atmospheric and cloud properties. The focus is on characterizing the precipitation characteristics, convective cloud spectrum, and atmospheric profiles of Kelvin waves during the active and suppressed phases of the MJO to gain insight on MJO initiation. Characteristics of waves identified using different satellite thresholds and filtering methods are compared. Composites of the radar and sounding observations are calculated for a total of ten Kelvin waves and three MJO events that occurred during the field campaign. Analyzed radar products include convective-stratiform classification of rain rate, rain area, and echo-top heights, as well as cloud boundaries. Sounding data includes profiles of wind speed and direction and relative humidity. Kelvin waves that occur during the suppressed MJO are convectively weaker than Kelvin waves during the active MJO, but display previously documented structure of low-level convergence and a moist atmosphere prior to the wave passage. During the active MJO, Kelvin waves have stronger convective and stratiform rain, and the entire event is longer, suggesting a slower moving wave. The Kelvin wave vertical structure is somewhat overwhelmed by the convective envelope associated with the MJO. When the MJO is developing, the Kelvin wave displays a moisture-rich…
  note: by Amanda Michele DePasquale.
  note: "Major Subject: Atmospheric Sciences"
  note: Includes vita.
  note: Master of Science Texas A & M University 2013 http://hdl.handle.net/1969.1/151225
  note: Includes bibliographical references.
  note: Text (Thesis)
  subject:
    topic: Major Atmospheric Sciences
  subject:
    topic: MJO
  subject:
    topic: Kelvin Waves
  subject:
    topic: Convection
  subject:
    topic: Convective
  subject:
    topic: Stratiform
  subject:
    topic: DYNAMO
  subject:
    topic: CINDY2011
  subject:
    topic: AMIE
  subject:
    topic: Cloud spectrum
  subject:
    topic: Radar
  subject:
    topic: SMART-R
  subject:
    topic: KAZR
  subject:
    topic: Soundings
  subject:
    topic: Relative humidity
  subject:
    topic: Zonal wind
  subject:
    topic: Echo-top heights
  subject:
    topic: Rain rate
  subject:
    topic: Rain area
  identifier: http://hdl.handle.net/1969.1/151225
  record info:
    record content source: TXA
    record creation date: 140307
    record change date: 20151206092337.0
    record identifier: in00003476125
    language of cataloging:
      language term: eng