PPT-ONR Sea State and Boundary Layer Physics of the Emerging Arctic

Ocean Directed Research Initiative The Sea State DRI will use a combination of modeling in situ observations and remote sensing to address the following science objectives Develop a sea state climatology for the Arctic . Rockefeller Jr Memorial PKWY Big Hole NB Cowpens NB Fort Donelson NB Fort Necessity NB Moores Creek NB Petersburg NB Stones River NB Tupelo NB Wilsons Creek NB Kennesaw Mountain NBP Richmond NBP Brices Cross Roads NBS Chickamauga and Chattanooga NMP Decline in the extent and thickness of Arctic sea ice is an active area of scientific effort and one with significant implications for ecosystems and communities.. Forecasting for seasonal timescales (i.e., the summer and into fall) is of particular interest to many stakeholders.. Presentation by Kathleen Crane. Arctic Research, Climate Program Office. National Oceanic and Atmospheric. Administration. kathy.crane@noaa.gov. NOAA’s Role in the Arctic:. Ocean Observations. Atmospheric . Pressure gradient is found from . freestream. (external) velocity . field. Boundary layer equation:. x. z. Effect of Pressure Gradient on the flow in a Boundary Layer. In the accelerating part of the stream,. . Drag force. The surrounding fluid exerts pressure forces and viscous forces on an object. .. The components of the resultant force acting on the object immersed in the fluid are the drag force and the lift force. . NCAR is funded by the National Science Foundation. Richard . Rotunno. NCAR, Boulder CO. http://. www.mmm.ucar.edu/people/rotunno. /. Outline. Rotating Flow / No Boundary . Rotating Flow / Frictional Boundary Layer. Viscous effects confined to within some finite area near the boundary → . boundary layer. In unsteady viscous flows at low . Re. (impulsively started plate) the boundary layer thickness . δ. . grows with time. The vanishing veneer of frozen ocean isn't just important for polar bears.. By: Russell . McLendon. 11/6/2015. 2. The Arctic hasn't been itself lately. Temperatures there are rising at twice the global rate, sparking an array of changes unlike anything in recorded history. One of the most striking examples is the region's sea ice, whose dramatic decline over the past decade has led to forecasts of an ice-free Arctic Ocean as early as the 2030s. . Stephanie . Pfirman. and Jessica . Brunacini. Columbia University and Barnard College. 1. http://. www.arctic.noaa.gov. /future/. sea_ice.html. Loss of Summer Sea Ice. 2. Seasonal Variations In Sea Ice. Presented To: . 7. th. Ice Diminished Arctic Symposium. RADM David J. Hahn. Chief of Naval Research . Office of Naval Research. 18 July 2017. Distribution Statement A: Approved for public release. MAJOR THRUSTS:. Regulatory Control Training Workshop. Regulatory Cooperation Forum. Peter Hughes. 6-10 November, 2017. Morocco. Learning Objectives. After going through this presentation the participants are expected to be familiar with:. in . the Arctic Council to safeguard marine biodiversity . Margherita Poto. Postdoc. . at . the. UiT/JCLOS. Contact. : margherita.poto@uit.no. IP . Participatory. . rights. in a nutshell. Introduction. Fiscal Year FY 2022 Department of Defense Multidisciplinary ResearchProgram of the University Research InitiativeMURIDeadlinesWhite Paper Inquiries and Questions 24 May 2021 Monday White Papers must b . (4). . . Residual Layer . About a half . -. hour before sunset the thermals cease to form (in the absence of cold air advection), allowing turbulence to decay in the formerly well-mixed layer. The resulting layer of air is sometimes called the residual layer. .