UPRM Testbed Sandra Cruz Pol José Colom Rafael Rodríguez Lionel Orama Chandrasekar

Technology test bed  Work with partners to develop and evaluate new DCAS technologies for applications Examples:  Radiation laboratory will conduct fabrication and testing of the antenna systems  Evaluate the polarization matching and purity of the various NETRAD radars for DCAS application and improve design accordingly.  Characterize the integrated side-lobe performance for predicting performance in various terrains.  Characterize the performance of the wireless data links in intense tropical precipitation. Study the data loss as a function of rainfall rate.

UPRM Testbed – Integrating Research Wireless telemetry Fixed/Mobile b testbed preparation PhD, MS students at UMASS Study antennas and propagation Fabricate 2 low- cost X-band nodes/ work with Sekelsky - one fixed - one mobile QPE work PhD, MS students At CSU Develop low cost fixed frequency and beam PCB antenna/ Pozar Begin Puerto Rico micro- climatology survey using X- band nodes/CSU & OU Develop low cost frequency scanning PCB antennas/Pozar Develop low cost multi-band scanning antennas/ work with Pozar Begin b and X-band propagation studies - moist environment/ Cruz atmos propagation models- complex terrain & urban areas/ Janaswamy Develop plan for island- wide network - consider mountainous topology = work with Paula Reese - consider flood-prone regions = work with emergency planners/Reese MS students Summer at UMass Refurbish Lighting APL in PR Develop low cost solid- state/MPM precip radar prototype/ work with Sekelsky

Tropical storm/Hurricane Testbed  Develop special DCAS operations for tropical storm/hurricane environment.  A) Pre-landfall mode of operation, study approaching rain- bands  B) During land-fall to study the complete microphysical structure and the associated performance of DCAS, including loss of some radars. Collaborate with Hurricane Research Center  C) Develop and validate specific QPE algorithms tuned to tropical storms in conjunction with in-situ sampling of the raindrop size distribution.  D) Conduct systematic study of storm microphysics via polarimetric radar observations for the Puerto Rico environment.

Long-term Plan Visualization of radar coverage of PR as a test-bed Expand campus testbed into island-wide DCAS system. Engage National Weather Service (San Juan) Integrate other end-users such as Emergency Management and Planning, FEMA