Department of Estuarine and Ocean Sciences Seminar Announcement - Robert Todd
When: Wednesday,
November 2, 2022
12:30 PM
-
1:30 PM
Where: > See description for location
Description: The School for Marine Science and Technology
Department of Estuarine and Ocean Sciences
Seminar Announcement
"Shelf-deep ocean exchange near Cape Hatteras from two years of underwater glider observations"
Robert Todd
Woods Hole Oceanographic Institution
Wednesday, November 2, 2022
12:30 pm - 1:30 pm
SMAST East, Rooms 101/102
and via Zoom
Abstract:
The area around Cape Hatteras, NC, USA, is a region of intense exchange between the continental shelf and deep ocean. Convergence of shelf waters from the Middle Atlantic Bight (MAB) and the South Atlantic Bight results in net export of shelf waters, while both the nearby Gulf Stream and variable atmospheric forcing modulate the location and sign of instantaneous flow across the edge of the continental shelf. The ‘Processes driving Exchange At Cape Hatteras (PEACH)’ program used a variety of observational assets to characterize shelf-deep ocean exchange in the region during 2017-2019. As part of PEACH, Spray underwater gliders occupied a transect along the upper continental slope more than 100 times during a two-year period. These observations show that the export of shelf waters is largely episodic; 50% of MAB shelf water was exported during 17% of the observational period. The nature of these export events varies substantially in the observational record. Eddy (i.e., time-varying) fluxes of heat, salt, buoyancy, and momentum between the continental shelf and deep ocean indicate that the Hatteras region is a hotspot for eddy-induced shelf-deep ocean exchange, largely due to baroclinic instability associated with the shelfbreak front.
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Join Zoom Meeting
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Meeting ID: 974 4006 9270
Passcode: 428029
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Meeting ID: 974 4006 9270
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Meeting ID: 974 4006 9270
Passcode: 428029
********************************************************************************
For additional information, please contact Sue Silva at s1silva@umassd.edu
Department of Estuarine and Ocean Sciences
Seminar Announcement
"Shelf-deep ocean exchange near Cape Hatteras from two years of underwater glider observations"
Robert Todd
Woods Hole Oceanographic Institution
Wednesday, November 2, 2022
12:30 pm - 1:30 pm
SMAST East, Rooms 101/102
and via Zoom
Abstract:
The area around Cape Hatteras, NC, USA, is a region of intense exchange between the continental shelf and deep ocean. Convergence of shelf waters from the Middle Atlantic Bight (MAB) and the South Atlantic Bight results in net export of shelf waters, while both the nearby Gulf Stream and variable atmospheric forcing modulate the location and sign of instantaneous flow across the edge of the continental shelf. The ‘Processes driving Exchange At Cape Hatteras (PEACH)’ program used a variety of observational assets to characterize shelf-deep ocean exchange in the region during 2017-2019. As part of PEACH, Spray underwater gliders occupied a transect along the upper continental slope more than 100 times during a two-year period. These observations show that the export of shelf waters is largely episodic; 50% of MAB shelf water was exported during 17% of the observational period. The nature of these export events varies substantially in the observational record. Eddy (i.e., time-varying) fluxes of heat, salt, buoyancy, and momentum between the continental shelf and deep ocean indicate that the Hatteras region is a hotspot for eddy-induced shelf-deep ocean exchange, largely due to baroclinic instability associated with the shelfbreak front.
*****************************************************************************
Join Zoom Meeting
https://umassd.zoom.us/j/97440069270?pwd=L2Z1bDZESTFCKzJYZWduYVhWenYvZz09
Meeting ID: 974 4006 9270
Passcode: 428029
One tap mobile
+13017158592,,97440069270#,,,,*428029# US (Washington DC)
+13126266799,,97440069270#,,,,*428029# US (Chicago)
Dial by your location
+1 301 715 8592 US (Washington DC)
+1 312 626 6799 US (Chicago)
+1 646 876 9923 US (New York)
+1 253 215 8782 US (Tacoma)
+1 346 248 7799 US (Houston)
+1 669 900 6833 US (San Jose)
Meeting ID: 974 4006 9270
Passcode: 428029
Find your local number: https://umassd.zoom.us/u/adtxYu9NMO
Join by SIP
97440069270@zoomcrc.com
Join by H.323
162.255.37.11 (US West)
162.255.36.11 (US East)
115.114.131.7 (India Mumbai)
115.114.115.7 (India Hyderabad)
213.19.144.110 (Amsterdam Netherlands)
213.244.140.110 (Germany)
103.122.166.55 (Australia Sydney)
103.122.167.55 (Australia Melbourne)
149.137.40.110 (Singapore)
64.211.144.160 (Brazil)
149.137.68.253 (Mexico)
69.174.57.160 (Canada Toronto)
65.39.152.160 (Canada Vancouver)
207.226.132.110 (Japan Tokyo)
149.137.24.110 (Japan Osaka)
Meeting ID: 974 4006 9270
Passcode: 428029
********************************************************************************
For additional information, please contact Sue Silva at s1silva@umassd.edu
Contact: > See Description for contact information
Topical Areas: SMAST Seminar Series, School for Marine Sciences and Technology