Flood Alarm System in Western Puerto Rico

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Flood Alarm System in Western Puerto Rico

• Eric Harmsen

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Objectives

• The long-term objective of this research is to
  develop a prototype emergency system alarm for
  selected areas within the Mayagüez Bay drainage
  basin which are susceptible to flooding.
• The alarm information will be made available to
  emergency management agencies via the internet.
• A distributed hydrological model (Vflo) with
  radar rainfall from CASA project and NexRAD will
  be used produce different responses of the
  basins.

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Objectives

• Evaluate the response of the watershed to
  different grid size resolution, using different
  upscaling methods to find the optimal grid
  resolution for real time applications that
  include urban drainage to produce accurate
  results within the study area .
• Beginning 10 meters grid resolution.

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Objectives

• Perform a calibration with the ordered
  physics-based parameter adjustment (OPPA) method
  and include an automated global sensitive
  analysis for the input parameters to obtain the
  optimal input combination for the local
  conditions (i.e., tropical system and complex
  topography).

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Objectives

• Evaluate a long-term simulation to find and
  understand operational limits to flood detection,
  false alarms, and critical forecast skill indices
  with a distributed model.

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Simulating the Sea Breeze Effect in the Mayagüez
Area using RAMS
Study Area
Mayagüez Bay
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Preliminary RAMS Results

• The following plots present the vertical velocity
  profile in m/s and the contours (black contour)
  of the turbulent kinetic energy (m2/s2) at
  different layers in the atmosphere (Z148.8m,
  Z3269m, Z5561m, Z6689m) respectively.
• Topography is present to take a reference of the
  location of the velocity profile.

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Jan-09-2007

• On this day the sea breeze effect is visible.
• Penetration was evident above 500 m in the
  atmosphere.
• These plots present the velocity vectors at 48.5
  m and the vertical velocity at 689m above the
  surface.

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