CASA-bilgin.ppt by lanyuehua

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									    788.11J Presentation
 “Atmospheric Observatory”




Presented by Seyfettin Yasin Bilgin
                     The Main Idea

• Distributed networks of short-range radars offer the
  potential to observe winds and rainfall at high spatial
  resolution in volumes of the troposphere that are
  unobserved by today’s long-range weather radars.



                                  •By scaling the wireless sensor
                                  network technologies upward and 30-
                                  km radar technologies downward
                                  •OTG – Of The Grid radar and
                                  wireless radar network
               The Main Achievements

• Source its prime power needs using energy harvesting
(solar panels) rather than existing power infrastructure

• Transport its data and
control communications via
wireless ad-hoc
communications network
rather than existing
network communication
infrastructure
•Manage its energy
consumption by adapting its
functionality to the
environmental conditions
                        The Challenges

•Trade off between sensitivity and time requirements
   –5 minutes intervals needed for tracking fast events
   –Limited-sector scans instead of full volume surveillance
                             Pictures




http://www.casa.umass.edu/
                  Innovation

• DCAS – Distributed Collaborative Adaptive
Sensing
•Observing lower troposphere
•User driven system

                        •Tracking and
                        locating tornados
                        within 100m

								
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