[Eoas-seminar] GFDI COLLOQUIUM ON TUESDAY, APRIL 12 AT 11:00AM IN MELVIN STERN SEMINAR ROOM, # 18 KEEN

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Thu Mar 24 12:06:10 EDT 2016


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&                                            GFDI COLLOQUIUM                                                                                                    &

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Title

"Impact of Ice and Wind on Phytoplankton Blooms in the Chukchi Sea in a Changing Climate"

Speaker

Dr. Robert Pickart

Woods Hole Oceanographic Institute

Time
Tuesday, April 12, 2016 at 11:00AM

Place
Melvin Stern Seminar Room
Room 18 Keen Bldg.

Refreshments will be served at 10:45AM

Abstract:

Primary production in the Chukchi Sea, north of the Bering Strait, has increased dramatically over the past few decades. This is due in part to the decline in summertime sea ice cover in the Pacific sector of the Arctic Ocean, allowing more sunlight to penetrate the open water.  Perhaps more striking is the fact that multi-year ice has been replaced by relatively thin first-year ice that is subject to ponding earlier in the season when nutrients are more prevalent on the shelf. In this talk, the physical processes that lead to phytoplankton blooms in the Chukchi Sea are discussed using a combination of in-situ data, atmospheric re-analysis fields, and idealized modeling. It is
shown how recent changes in sea ice and wind forcing can lead to enhanced primary production that may become even more pronounced as the climate continues to warm.



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