February PGS meeting
The February meeting of the Potomac Geophysical Society will be held February 19th at the Fort Myer Officers' Club in Arlington, VA in the Campaign Room. This month's talk will be: Listening to a Melting Arctic Ocean - Singing the Blues?, by Peter N. Mikhalevsky, SAIC, VA.
Abstract:
The waters of the Arctic Ocean have been warming since the mid 1990's. Average maximum temperatures have risen by more than 1°C. In the last 20 years submarine measurements of sea ice draft have shown a 40% reduction in average sea ice thickness while satellite remote sensing has shown a 14% reduction in sea-ice extent over the same period decreasing at a rate of 3-5%/decade (thicker multi-year ice at 7-10%/decade). Forecasts indicate that if these trends continue the Arctic Ocean could be ice-free, "A Blue Arctic Ocean" before the end of this century. Significant effort is needed to expand our observational capabilities in the Arctic Ocean to support better modeling, forecasting and improve our understanding of this critical ocean and the linkages to global climate. One technique - acoustic thermometry - has been shown to be a very effective for monitoring average heat content and average temperature in the Arctic Ocean and in particular in the Arctic Intermediate Water (AIW) layer. Two experiments conducted in 1994 and 1999 measured the warming and demonstrated the feasibility of long term observations. Plans are in process to incorporate acoustic thermometry and tomography in in-situ Arctic Ocean observatories.
Dinner Menu
Chicken Marsala (House salad & vegetables, rolls and butter)
Tira Mi Su
Coffee / tea
A vegetarian meal can be substituted by request.
Reception at 6:30. Dinner at 7:30. Talk at 8:30 PM. Allow 15 minutes for security entering Ft. Myer as all civilian vehicles are searched. To ensure access to and from Fort Myer use the Hatfield Gate, open 24 hours a day (https://webmail-1.nvcc.edu/exchweb/bin/redir.asp?URL=http://www.fmmcmwr.com/directionsmyer.htm). If you wish to attend dinner ($25), please make reservations with Joydeep Bhattacharyya at 703-676-4373 or via E-mail at Joydeep.bhattacharyya@saic.com. If you wish, please feel free to attend the talk without dinner. Non-members and guests are welcome. Visit the PGS web site at https://webmail-1.nvcc.edu/exchweb/bin/redir.asp?URL=http://www.potomacgeophysical.com%2520/ for new meeting announcements, etc.
Abstract:
The waters of the Arctic Ocean have been warming since the mid 1990's. Average maximum temperatures have risen by more than 1°C. In the last 20 years submarine measurements of sea ice draft have shown a 40% reduction in average sea ice thickness while satellite remote sensing has shown a 14% reduction in sea-ice extent over the same period decreasing at a rate of 3-5%/decade (thicker multi-year ice at 7-10%/decade). Forecasts indicate that if these trends continue the Arctic Ocean could be ice-free, "A Blue Arctic Ocean" before the end of this century. Significant effort is needed to expand our observational capabilities in the Arctic Ocean to support better modeling, forecasting and improve our understanding of this critical ocean and the linkages to global climate. One technique - acoustic thermometry - has been shown to be a very effective for monitoring average heat content and average temperature in the Arctic Ocean and in particular in the Arctic Intermediate Water (AIW) layer. Two experiments conducted in 1994 and 1999 measured the warming and demonstrated the feasibility of long term observations. Plans are in process to incorporate acoustic thermometry and tomography in in-situ Arctic Ocean observatories.
Dinner Menu
Chicken Marsala (House salad & vegetables, rolls and butter)
Tira Mi Su
Coffee / tea
A vegetarian meal can be substituted by request.
Reception at 6:30. Dinner at 7:30. Talk at 8:30 PM. Allow 15 minutes for security entering Ft. Myer as all civilian vehicles are searched. To ensure access to and from Fort Myer use the Hatfield Gate, open 24 hours a day (https://webmail-1.nvcc.edu/exchweb/bin/redir.asp?URL=http://www.fmmcmwr.com/directionsmyer.htm). If you wish to attend dinner ($25), please make reservations with Joydeep Bhattacharyya at 703-676-4373 or via E-mail at Joydeep.bhattacharyya@saic.com. If you wish, please feel free to attend the talk without dinner. Non-members and guests are welcome. Visit the PGS web site at https://webmail-1.nvcc.edu/exchweb/bin/redir.asp?URL=http://www.potomacgeophysical.com%2520/ for new meeting announcements, etc.
Labels: climate change, global warming, meetings, oceans, pgs
0 Comments:
Post a Comment
<< Home