Browsing Department of Materials Science and Metallurgy by Author "Haynes, Peter Howard"

Now showing items 1-6 of 6

  • Arctic Sea Ice Loss in Different Regions Leads to Contrasting Northern Hemisphere Impacts 

    McKenna, Christine; Bracegirdle, TJ; Shuckburgh, EF; Haynes, Peter Howard; Joshi, MM (Wiley-BlackwellGeophysical Research Letters, 2018-01-28)
    To explore the mechanisms linking Arctic sea-ice loss to changes in mid-latitude surface temperatures, we conduct idealized modeling experiments using an intermediate general circulation model and with sea-ice loss confined ...

  • The double peak in upwelling and heating in the tropical lower stratosphere. 

    Ming, Alison; Hitchcock, Adam Peter; Haynes, Peter Howard (American Meteorological SocietyJournal of the Atmospheric Sciences, 2016-04-15)
    The processes responsible for double peak latitudinal structures in the time averaged tropical lower stratospheric upwelling, centred near 70hPa and 20º N–S, previously noted in ERA-Interim and other reanalysis and model ...

  • The emergence of shallow easterly jets within QBO westerlies 

    Hitchcocka, P; Haynes, Peter Howard; Randel, WJ; Birner, T (Journal of the Atmospheric Sciences, 2018-01-01)
    © 2018 American Meteorological Society. A configuration of an idealized general circulation model has been obtained in which a deep, stratospheric, equatorial, westerly jet is established that is spontaneously and ...

  • The radiative role of ozone and water vapour in the annual temperature cycle in the tropical tropopause layer 

    Ming, Alison; Maycock, AC; Hitchcock, P; Haynes, Peter Howard (Atmospheric Chemistry and Physics, 2017-05-08)
    © Author(s) 2017. The structure and amplitude of the radiative contributions of the annual cycles in ozone and water vapour to the prominent annual cycle in temperatures in the tropical tropopause layer (TTL) are considered. ...

  • The response of the lower stratosphere to zonally symmetric thermal and mechanical forcing. 

    Ming, Alison; Hitchcock, Adam Peter; Haynes, Peter Howard (American Meteorological SocietyJournal of the Atmospheric Sciences, 2016-04-15)
    The response of the atmosphere to zonally symmetric applied heating and mechanical forcing is considered, allowing for the fact that the response may include a change in the wave force (or ‘wave drag’). A scaling argument ...

  • Zonally symmetric adjustment in the presence of artificial relaxation 

    Hitchcock, Adam Peter; Haynes, Peter Howard (American Meteorological SocietyJournal of the Atmospheric Sciences, 2014-06-15)
    Numerical experiments, presented in a companion paper, have been performed in which the zonal mean state of the stratosphere in a comprehensive, stratosphere-resolving, general circulation model is strongly relaxed (or ...