Dear Arctic Community,
There will be a NSF funded workshop "Assessing impacts of Arctic bathymetry
changes and fresh water inputs on shelf and ocean circulation for the past
20,000 years" to be held at the Naval Postgraduate School in Monterey,
California, October 1-2, 1999. The intent of the workshop is to gain new
understanding on how changes in arctic fresh water inputs and variations in
bathymetry of straits, channels and shelves in the Arctic effected water
mass exchange amongst the Arctic, Atlantic and Pacific oceans.
Specifically, the goals of the workshop are: 1) To survey the current state
of knowledge on meltwater inputs and changes in bathymetry for the past
20,000 years in the Arctic and 2) to utilize the Naval Postgraduate School
coupled arctic sea ice-ocean model to evaluate how changes in bathymetry and
meltwater inputs effected thermohaline circulation, Pacific water inflow and
compensatory arctic water exchange for a specific time slice (e.g. 9 ka).
The NPS model has high spatial resolution (Arctic model 18 km grid; 30 ocean
layers) and resolves well the present surface circulation and eddy-scale
processes. Your contribution is needed to most realistically set boundary
conditions and evaluate model output.
This will be a hands-on workshop in which invitees will examine output from
the NPS coupled ocean-ice model and specify potential new models runs. The
model output and presented summaries of paleodata will promote synthesizing,
the formulation of review papers and identify future research needs.
Please contact:
Steve Forman
SLF [at] UIC.edu
312-413-9404 phone
prior to September 1st. If you would like to attend this workshop. There are
limited funds to subsidize travel and accommodations.
Sincerely,
Steven L. Forman
John T. Andrews
Wieslaw Maslowski
NSF Workshop "Assessing impacts of Arctic bathymetry changes and fresh water
inputs on shelf and ocean circulation for the past 20,000 years"
Naval Postgraduate School, Monterey, California October 1-2, 1999
GOALS: Critical components of global change are the influence of arctic
fresh water inputs and changing bathymetry of straits, channels and shelves
fringing the Arctic Ocean on water-mass exchange amongst the Arctic,
Atlantic and Pacific oceans. A hands-on workshop, assembling scientists with
process and paleo-perspectives, will be organized at the Department of
Oceanography, Naval Postgraduate School, Monterey, CA to explore the complex
effects of eustatic an isostatic changes, ice sheet coverage, fresh water
inputs and variable sea-ice dynamics in the Arctic on global ocean
circulation for the past 20,000 years. This venue accesses recent advances
in high resolution Pan-Arctic oceanographic modeling at the Naval
Postgraduate School, which provide means to evaluate paleoceanographic and
paleoclimatic hypotheses.
PRODUCTS:
1) A critical evaluation of how changes in bathymetry and
differential fresh-water inputs ca. 5 to 15 ka in the Arctic altered
Atlantic- and Pacific-driven ocean circulation and associated climate
change.
2) Provide definition for future oceanographic model experiments and
research priorities required to further understanding the sensitivity of
the Arctic and Global systems to bathymetric and fresh-water variations.
Tentative List of Participants
John Andrews (co-chair)
Steve Forman (co-chair)
Wieslaw Maslowski (co-chair)
Knut Aagard
Julie Brigham-Grette
Jonathan Overpeck
Bruce Peterson
Vladimir Pavlov
Ann Jennings
Nalan Koc
Hennig Bauch
Raymond Bradley
Ann de Vernal
Stephan Rahmstorf
Mark Serreze
Dan Seidov
Ruediger Stein
Larry Smith
Lloyd Keigwin
Leonid Polyak
David Lubinski
Morten Hald
Sirpa Hakkinen