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The last century of warming….
GISS SAT
England et al. [2014] Nature Climate Change
Recent climate trends….
ERA-Interim SLP and wind stress trends
1992-2011
England et al. [2014] Nature Climate Change
Recent climate trends….
AVISO sea surface height trends
1992-2011
England et al. [2014] Nature Climate Change
Recent climate trends….
HadISST sea surface temperature trends
1992-2011
England et al. [2014] Nature Climate Change
Recent climate trends….
GISS surface air temperature trends
1992-2011
England et al. [2014] Nature Climate Change
Recent Pacific Ocean trends….
England et al. [2014] Nature Climate Change
What do the Pacific wind trends
do in models….?
OCEAN GCM, SIMPLE ATMOSPHERE
England et al. [2014] Nature Climate Change
What do the Pacific wind trends
do in models….?
OCEAN GCM, SIMPLE ATMOSPHERE
England et al. [2014] Nature Climate Change
What do the Pacific wind trends
do in models….?
OCEAN GCM, SIMPLE ATMOSPHERE
England et al. [2014] Nature Climate Change
What do the Pacific wind trends
do in models….?
SPIN UP
Half the hiatus
OCEAN GCM, SIMPLE ATMOSPHERE
England et al. [2014] Nature Climate Change
What does this mean for climate
projections….?
England et al. [2014] Nature Climate Change
What does this mean for climate
projections….?
England et al. [2014] Nature Climate Change
How unusual are the wind trends….?
England et al. [2014] Nature Climate Change
Do models capture
the magnitude of
decadal variability
seen in OBS?
England et al. [2014]
Nature Climate Change
Recent OBS wind trends vs. models
England et al. [2014] Nature Climate Change
Conclusions
• Recent observed trade wind trend unprecedented
England et al. [2014] Nature Climate Change
Conclusions
• Recent observed trade wind trend unprecedented
• Missing in CMIP models
England et al. [2014] Nature Climate Change
Conclusions
• Recent observed trade wind trend unprecedented
• Missing in CMIP models
• Cooling impact can account for the hiatus
• Ocean heat uptake
• Teleconnections from cool East Pacific SST
• Hiatus could persist for much of the present decade
• Warming out of hiatus likely rapid
England et al. [2014] Nature Climate Change
Greg Johnson
NOAA / PMEL
Role of trade winds in mid-20th Century hiatus
England et al. [2014] Nature Climate Change
England et al. [2014]
Nature Climate Change
England et al. [2014] Nature Climate Change
England et al. [2014] Nature Climate Change
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