#  ClimaTea Lecture 

 



####  calendar\_today Date and Time 

 **March 27, 2018** 

 03:00PM - 03:00PM EDT 

####  pin\_drop Location 

 **Seminar Room MCZ, 440**  



 

 



 

 Speaker:[Professor Carl Wunsch](https://eapsweb.mit.edu/people/wunsch)

 **Prof. Carl Wunsch** talk about his work on **time-averaged ocean circulation.** Please see below for more details:

 **A Time-Averaged Ocean Circulation and What It Might Mean**

 For historically good observational reasons, theoretical descriptions of the ocean circulation have usually failed to distinguish between two contradictory hypotheses: that the circulation so described was (A) the instantaneous steady-state one or, (B) the time-average one. Modern observational systems that have existed since the World Ocean Circulation Experiment (1992+) have made it possible to produce both near instantaneous (hourly) and time-averaged (20+ years) dynamically consistent state estimates--method to be briefly described. The availability of a spatially near-homogeneous time-average raises a whole series of interesting theoretical and practical questions, ranging from the extent to which the textbook theories do describe it; to the determination of long-term trends in quantities such as heat content in a system that conserves energy; and the accuracies of such quantities. A simple qualitative result is the striking extent to which spatially restricted circulation features survive 20-years of averaging even in the open ocean.



 

 

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 Attachments- [  picture\_as\_pdf  newclimatology1\_6\_forams\_4jan2018.pdf ](/sites/g/files/omnuum11466/files/climate/files/newclimatology1_6_forams_4jan2018.pdf)
 
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 See also:- [ ClimaTea ](/type-event/climatea-lecturejournal-club)
 
 

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