The role of the Southern Hemisphere semiannual oscillation

The role of the Southern Hemisphere semiannual oscillation (SAO) as a precursor to the development of different types of El Nio events Objective: Document the contribution of the seasonal cycle, represented by the semiannual oscillation (SAO) in the AustraliaPacific region, to the development of El Nio events in either the eastern equatorial Pacific or central equatorial Pacific Research: --Analyze observations of sea surface temperature, sea level pressure, and upper ocean temperatures --document the connection of the SAO in the May-June-July (MJJ) season, when the circumpolar trough is farthest north and can best interact with the tropics, to subsequent El Nio development Impact: A strong SAO, with an anomalously northward-expanded trough of low pressure in MJJ, produces an eastern Pacific El Nio event, while a weak SAO produces a central Pacific El Nio event

a) Composite observed May-June-July (MJJ) SST anomalies, eastern Pacific El Nio years (MJJ-EP) minus climo (19512010); stippling indicates significance at the 95% level; largest warming is in the equatorial eastern Pacific; b) Same as in (a) except for central Pacific El Nio (MJJ-CP) years with greatest warming in the central equatorial Pacific; c) Same as (a) except for MJJ-EP sea level pressure (SLP) anomalies showing largest negative SLP anomalies near 30S in the Pacific (strong SAO) associated with greatest positive SST anomalies in the eastern equatorial Pacific in (a); d) Same as (c) except for central Pacific El Nio years, with largest negative SLP anomalies near 40S in the Pacific (weak SAO) associated with greatest positive SST anomalies in the central equatorial Pacific in (b). Meehl, G.A., H. van Loon, and Julie M. Arblaster, 2017: The role of the Southern Hemisphere semiannual oscillation in the development of a precursor to central and eastern Pacific Southern Oscillation warm events, Geophys. Res. Lett., 44, doi:10.1002/2017GL073832. 1 BER Climate Research Department of Energy Office of Science Biological and Environmental Research

Recently Viewed Presentations

  • SimVenture Evolution-recap

    SimVenture Evolution-recap

    SimVenture Evolution-recap. Lesson 9 - Promotion. 27/11/2018. www.simventure.co.uk. Summary of Lesson 8. 11/27/2018. www.simventure.co.uk. In this module we covered: Setting the selling points & pricing in line with your product design [Branding] Choose a primary segment for your product.
  • Baroque Art - Henry County Public Schools

    Baroque Art - Henry County Public Schools

    One of best known Baroque artists. Dutch (native to the Netherlands) Developed revolutionary technique. Use of large amount of paint. Use of fewer brushstrokes. Made paintings almost seem unfinished (clear and formal looking from a distance) Painted many landscapes and...
  • Presented By Mrs.Estess Fourth Grade Class Dillon Bailey

    Presented By Mrs.Estess Fourth Grade Class Dillon Bailey

    Dillon Bailey Christopher Robbins Leigha Bell Jacob Roberts Bethany Blasé Caleb Rosian Jayden Brown Justin Scott ... Noah Lusk Kali Walker Kristy Nelson Lamont Williams Paige Overbey Drea Parker Christian Ricouard Axis - an imaginary line that goes through the...
  • Skills For Middle Schoolers The Parent Power Workshop

    Skills For Middle Schoolers The Parent Power Workshop

    -Use flash cards, play charades or play Pictionary ... Great for vocab., definitions, math equations/examples. Used solo or with study buddies. Many different games can be played. Can make your own or use some websites. Most kids don't use them!...
  • שקופית 1 - meyda.education.gov.il

    שקופית 1 - meyda.education.gov.il

    She dressed the children in their best clothes. They numbered 192 children and 8 adults, in addition to Korczak and Stefa. Stefa Protects the Children, Black Print Color, 50/35 cm, 1976 Stefa, Black Print Color, 50/35 cm, 1975 The deportation...
  • Compliance, Safety, Accountability (CSA) and Drivers Spring 2017

    Compliance, Safety, Accountability (CSA) and Drivers Spring 2017

    The Federal Motor Carrier Safety Administration (FMCSA) is a transportation agency with over 1,000 Federal employees and 12,000 State Partners across the Nation committed to our safety mission—preventing crashes, injuries, and fatalities related to large trucks and buses on our...
  • L23: Virtual Memory II CSE410, Winter 2017 Virtual

    L23: Virtual Memory II CSE410, Winter 2017 Virtual

    VM for Managing Multiple Processes. Key abstraction: each process has its own virtual address space. It can view memory as . a simple linear array. With virtual memory, this simple linear virtual address space need not be contiguous in physical...
  • Watch out for: Brain Eater!!!! - Hoosick Falls CSD

    Watch out for: Brain Eater!!!! - Hoosick Falls CSD

    Mindfulness Tell students: The limbic area/protective brain is, one of the oldest and most dominant portions of the brain and is on automatic. It tells you to, say, pull your hand away from a flame—and also to flee from unpleasant...