PPT-The Response of Marine Boundary Layer Clouds to Climate Cha

Chris Jones Department of Applied Math Advisor Chris Bretherton Departments of Applied Math and Atmospheric Sciences VOCALS RF05 72W 20S Overview Introduction Marine boundary layer MBL clouds and climate sensitivity. 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,. Two key impacts. Cloud feedback. Response of clouds to increased CO. 2. Aerosol indirect effects (AIEs). Response of clouds to changes in aerosol particles. Cloud feedbacks. Uncertainty in cloud feedbacks is main source of uncertainty in climate sensitivity. William R. . Cotton. Dept. of Atmospheric Science. Colorado State University. Outline. My background. Lessons learned from Cloud seeding . Engineering clouds and climate. Social/political reactions to cloud seeding and likely response to climate engineering. . 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. . Florent. . Brient. , . Tapio. Schneider, . Zhihong. Tan, Sandrine Bony, Xin Qu, Alex Hall. Science Questions:. Approach:. Key Accomplishments:. Publication:. Brient. , F., T. Schneider, Z. Tan, S. Bony, X. Qu. -phase clouds cause climate model biases in Arctic wintertime temperature inversions. OBJECTIVE. We . show how the formation of Arctic air masses leads to the emergence of a cloudy and a clear state of the Arctic . (a lot has happened in the last year!). Jen Kay. (. jenkay@ucar.edu. ). NCAR’s. CFMIP/COSP contact. Collaborators: Steve Klein, . Yuying. Zhang, Jim Boyle (LLNL), Ben Hillman, . Roj. . Marchand. William Ahue. University of Wisconsin – Madison. Dept. of Atmospheric and Oceanic Sciences. Department Seminar. 28. April 2010. Advisor:. Prof. Ankur Desai. What to Expect. Motivation and Background. Houze. , . Jr. *. University of . Washington, *PNNL. PNNL. Richland, WA. 27 September 2016. Development of shallow, precipitating clouds during MC3E. AMIE/DYNAMO . Early . suppressed. 1) Cloud lines oriented parallel to wind direction and (initially) to low-level shear. 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. In a flow, the boundary layer represents a (relatively) thin layer of fluid that is nearest the solid boundary. 87-351 Fluid Mechanics. [ physical interpretation: what are we doing today? ]. The behaviour of the boundary layer is very different from that of the fluid above it. Large-scale . forcings. are obtained: . From the ARM variational analysis (ARM VA) for a standard domain (300 km, 25 mb) & reduced domain (150 km, 10 mb) . Derived from ECMWF for a standard domain (300 km) and a reduced domain (150 km), both with 3-25 . Patterns. . Weather . and Climate . . . Big Idea 7: Earth Systems and Patterns. SC.5.E.7.3 - Recognize how air temperature, barometric pressure, humidity, wind speed and direction, and precipitation determine the weather in a particular place and time. AA.