Sea Surface Temperature impact on the Sea Level Changes Over North Pacific

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1 Sea Surface Temperature impact on the Sea Level Changes Over North Pacific Xichen Li; Jiang Zhu; Shang-Ping Xier; Shan Li Institute of Atmospheric Physics

2 I. Tropical Polar Teleconnections Observed Changes in Sea Surface Height Observed Changes in Satellites (TOPEX / Jason1 / Jason2) and Coastal Stations

3 I. Tropical Polar Teleconnections Regional Sea Level Changes after Removing the Global Mean

4 I. Tropical Polar Teleconnections Regional Sea Level Changes after Removing the Global Mean SST drives SLA over North Pacific Xichen Li, IAP-CAS CESM workshop 2017

5 I. Recent Climate Change over Antarctica Recent Climate Changes over Antarctica Sea Surface Temperature Surface Wind Sea Surface Height

6 I. Recent Climate Change over Antarctica Recent Climate Changes over Antarctica Sea Surface Temperature Surface Wind Sea Surface Height Sea Surface Temperature

7 I. Recent Climate Change over Antarctica Recent Climate Changes over Antarctica Sea Surface Temperature Surface Wind Sea Surface Height Sea Surface Temperature

8 Questions Whether SST induced Surface Wind Changes can Drive the Observed Sea Level Changes? Whether Inter-basin Teleconnections can Trigger These Changes?

9 Observed Changes in Sea Level, SST, and Atmospheric Circulations

10 I. s SLA SST and Surface Atmospheric Circulation Changes SLA

11 I. s SLA SST and Surface Atmospheric Circulation Changes SLA SST

12 I. s Observed SLA SST and Surface Atmospheric Circulation Changes SLA Surface Wind SST SLP

13 I. s Observed SLA SST and Surface Atmospheric Circulation Changes SLA Surface Wind SST SLP England et al, 2014; McGregor et al, 2014; Li et al, 2016;

14 I. s Observed SLA SST and Surface Atmospheric Circulation Changes SLA Surface Wind SST SLP

15 I. s Observed SLA SST and Surface Atmospheric Circulation Changes SLA Surface Wind SST SLP Zhang et al, 2006; Yu et al, 2016

16 Ocean Model Simulations Forced by Surface Wind Changes

17 I. s Observed Changes.VS. Ocean Model Simulations Using Observed Atmospheric Forcing to Drive the Ocean Model (POP) SST drives SLA over North Pacific Xichen Li, IAP-CAS CESM workshop 2017

18 I. s Observed Changes.VS. Ocean Model Simulations Observed Changes In SLA Atmos Forcing Ocean Model Results In SLA SST drives SLA over North Pacific Xichen Li, IAP-CAS CESM workshop 2017

19 Coupled Model SST Restoring Simulation and Atmospheric Simulation Results

20 I. s Restoring the SST over Atlantic and Pacific in CESM system Coupled Model Simulation Forced by Atlantic SST Coupled Model Simulation Forced by Pacific SST

21 I. s Sea Level Response in Coupled Simulations Observed Changes Atlantic Forcing Pacific Forcing

22 I. s Surface Wind Responses in Coupled Simulations Atlantic Forcing Observed Changes Pacific Forcing K

23 I. s Surface Wind Responses in Coupled Simulations Atlantic Forcing Observed Changes Pacific Forcing

24 I. s

25 I. s Surface Wind Responses in Atmospheric Simulations Atlantic Forcing Observed Changes Indian Ocean Forcing Pacific Forcing

26 I. s

27 I. Tropical Polar Teleconnections Summary

28 I. Tropical Polar Teleconnections Summary SST drives SLA over North Pacific Xichen Li, IAP-CAS CESM workshop 2017

29 I. Tropical Polar Teleconnections Summary SST drives SLA over North Pacific Xichen Li, IAP-CAS CESM workshop 2017

30 Thank you Xichen Li

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