CSHOR Science Seminar - Introduction and overview Dr Wenju Cai| Director CSHOR 3 May 2018

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CSHOR Science Seminar - Introduction and overview Dr Wenju Cai| Director CSHOR 3 May 2018
CSHOR Science Seminar
Introduction and overview
Dr Wenju Cai| Director CSHOR
3 May 2018

CSHOR
CSHOR Science Seminar - Introduction and overview Dr Wenju Cai| Director CSHOR 3 May 2018
Acknowledgement of Traditional Owners

 I would like to pay respect to the traditional
     and original owners of this land, the
 Muwinina (mu wee nee nah) people, to pay
 respect to those that have passed before us
    and to acknowledge today’s Tasmanian
Aboriginal community who are the custodians
                  of this land.
CSHOR Science Seminar - Introduction and overview Dr Wenju Cai| Director CSHOR 3 May 2018
CSIRO, Battery Point, Hobart
                  Your Health and Safety are IMPORTANT
        Please remain within the public areas of the Auditorium, foyer and toilets (to the
         rear of these rooms), and the canteen
        If you wish to visit other CSIRO staff, please ask reception to contact the staff
         member on your behalf
        Smoking is not permitted in the buildings. There is an ashtray for smokers opposite
         the main entrance
        Please observe any safety signage
        In the event of an evacuation, a continuous alarm will sound, please gather
         together in the flagpole area (go out main entrance and turn right), or be instructed
         by the evacuation wardens (coloured hard hat) of an alternative gathering point
        An alternative evacuation route is through the Auditorium’s rear exit door
        Any questions regarding the site facilities – please ask at reception

AUDITORIUM
CSHOR Science Seminar - Introduction and overview Dr Wenju Cai| Director CSHOR 3 May 2018
Welcome

         • Welcome to Country
         • Housekeeping
         • Welcome to the CSHOR Steering and Advisory
           Committees and guests

4 | CSHOR Science Seminar| Dr Wenju Cai
CSHOR Science Seminar - Introduction and overview Dr Wenju Cai| Director CSHOR 3 May 2018
CSHOR Steering Committee

Dr Andreas Schiller             Prof Kehou PAN   Dr Susan Avery   Prof Gongke TAN   Dr Helen Cleugh
      CSIRO                          QNLM        (Independent          QNLM              CSIRO
                                                     Chair)

    5 | CSHOR Science Seminar| Dr Wenju Cai
CSHOR Science Seminar - Introduction and overview Dr Wenju Cai| Director CSHOR 3 May 2018
CSHOR Advisory Committee

    Prof AN Zhisheng                         Dr Sue Barrell BoM        Dr Gwen Fenton AAD
       CAS & NAS

         Dr Paul Hardisty AIMS            Dr Michael McPhaden NOAA Prof Martin Visbeck
                                                                      Kiel University
6 | CSHOR Science Seminar| Dr Wenju Cai
CSHOR Science Seminar - Introduction and overview Dr Wenju Cai| Director CSHOR 3 May 2018
Overview: CSHOR Science Seminar
• Welcome and introduction
• Project reports: this year’s
  achievements, highlights
  and the outlook for the
  second year of CSHOR in
  2018/19 (project leaders)
• ‘Uncertainty in sea level
  projections’ invited
  presentation by Prof John
  Church (UNSW)
• Presenting CSHOR
  Postdoctoral Fellows
                                          CSHOR Launch 22 May 3017

7 | CSHOR Science Seminar| Dr Wenju Cai
CSHOR Science Seminar - Introduction and overview Dr Wenju Cai| Director CSHOR 3 May 2018
CSHOR Highlights
Explaining the large increase
in ocean heat content in the
southern hemisphere oceans
A study based on previous
Argo float deployments,
published in Nature Climate
Change (Gao, Rintoul et al.,
2017), shows that wind-driven
changes in formation and
subduction of Subantarctic
Mode Water in the Southern
Ocean can explain the large
increase in ocean heat content
in the southern hemisphere
oceans.
8 | CSHOR Science Seminar| Dr Wenju Cai
CSHOR Science Seminar - Introduction and overview Dr Wenju Cai| Director CSHOR 3 May 2018
CSHOR Highlights
Understanding the ultimate risk of extreme El Niño
associated with a 1.5˚C warming target
        Figure 2c and 2d: Temporal evolution of multi-model
        ensemble mean changes under the RCP2.6 scenario
        Using five models with extended simulations to the
        23rd century. The linear trends and their 90% confidence
        intervals over the 2050–2150 period and the 2151–2250
        period indicate that although the GMT decreases, the
        meridional temperature gradient continues to weaken and
        the extreme El Niño frequency continues to increase before
        they reverse (Wang et al., 2017, Nature Climate Change).

9 | CSHOR Science Seminar| Dr Wenju Cai
CSHOR Science Seminar - Introduction and overview Dr Wenju Cai| Director CSHOR 3 May 2018
CSHOR Highlights
 Understanding the ultimate risk of extreme pIOD
 associated with a 1.5˚C warming target
In contrast to extreme El Nino, extreme pIOD
frequency stabilises with global mean
temperature, and during the transient period
the frequency increases with the GMT
(Cai et al. 2018).

 10 | CSHOR Science Seminar| Dr Wenju Cai
CSHOR Highlights
  Changes in the Southern Ocean revealed by researchers aboard
  the RV Investigator

   Southern Ocean researchers
   aboard the RV
   Investigator find a shift in a
   decades-long trend towards
   fresher, less dense water off
   Antarctica.

                                             Dr Steve Rintoul, voyage chief scientist (image source: Peter Mathew 12/2017)
Two Nature articles to appear soon.

  11 | CSHOR Science Seminar| Dr Wenju Cai
CSHOR Highlights
CSHOR won in the category of “Achievement
in International Talents and Knowledge
Introduction and International Collaboration”
the only winner for the category and the only
winner from Shandong province.

The award was established in celebration of
the 40th Anniversary of China’s Reform and
Opening-Up Policy. The Chinese government
established 40 awards in total.                 Prof Gongke TAN at the
                                                International Talents Exchange
                                                Meeting in Shenzhen

12 | CSHOR Science Seminar| Dr Wenju Cai
CSHOR Projects
•   Understanding present and future dynamics of ENSO and the IOD
•   Indo-Pacific interbasin exchange
•   Coupled warm pool dynamics in the Indo-Pacific
•   Southern Ocean dynamics, circulation and water mass formation
•   Southern Ocean observations and change
•   The role of the Southern Ocean in sea level change

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Thank you
CSHOR
Dr Wenju Cai
t +61 3 9239 4419
e wenju.cai@csiro.au
w https://cshor.csiro.au/
Presenting CSHOR
Postdoctoral Fellows
Presenting CSHOR Postdoctoral Fellows
                                       a) Benjamin Ng
                                       ENSO/IOD project

                                       b) Océane Richet
                                       Indo-Pacific interbasin
                                       exchange project

                                       C) Je-Yuan (Andy) Hsu
                                       Coupled warm pool
                                       dynamics project

19 | CSHOR Science Seminar| Dr Wenju Cai
Presenting CSHOR Postdoctoral Fellows
                                      d) Annie Foppert,
                                      Southern Ocean
                                      dynamics project

                                      e) Veronica Tamsitt,
                                      Southern Ocean
                                      dynamics project

                                      f) Kewei Lyu, Southern
                                      Ocean and sea level
                                      change project

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