1. Collaborative Adaptive Sensing of the
Atmosphere - CASA
Brenda Philips, Mike Zink
bphilips@ecs.umass.edu, zink@ecs.umass.edu
Deputy Directors
University of Massachusetts, Amherst
US Ignite Application Summit, June 25th 2013

2. Networked vs. Individual Radar
NEXRAD = 5 min between updates
Multi-Doppler scan
Surveillance scan
Closest radar
CASA = 1 min between updates
4-times bandwidth requirement from CASA network

3. Closed-loop
Network is critical!

4. Example Operations

5. Dynamically Allocated Resources
 Network and compute resources not always
required
 It is a clear day in Dallas today!
 Allocate network resource when and where needed
 Software Defined Networks and Cloud Computing
suite this approach well

6. Dynamically Allocated Resources for
Short-term Forecasts (aka Nowcast)
Detect
Weather
Forecast Detection
Initiate
Nowcast in
the cloud
Allocate
network and
cloud resources
Shut down
Nowcast
Release
network and
cloud resources
Run during
weather
event

7. US Ignite and GENI
High bandwidth, low-latency networks +
GENI testbeds =
Layer 2 + SDN + Open Clouds + “at scale”
 Perfect infrastructure for our application!
 All comes together in DFW Urban
Demonstration Testbed

8. SDN based on Weather
SDN Controller
Command & ControlForecast Detection