Success Stories Making a Difference

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Success
Stories Making a Difference Optimizing HF
Radar for SAR using USCG Surface Drifters
Art Allen U.S. Coast Guard Josh Kohut, Scott
Glenn Rutgers University and the Mid-Atlantic
Regional Coastal Ocean Observing System
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USCG Area of Responsibility
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Mid-Atlantic is the Most Urbanized Coast in the
Unites States
Puerto Rico has many similarities
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(No Transcript)
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CG Wide

• 3 searches / day 1000 / yr
• 3 persons lost / day 1000 / yr
• Costs 10k/hr to search
• 10k/hr x 1000 x 3 hr 30M
• Value of Statistical Life 3M
• 1000 x 3M 3B

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CG Wide

• Assume 100 persons involved / yr with
  sub-optimal search areas
• Assume 22 POS now typical
• 22 save/100 vs. 48/100 vs. 67/100
• Save 26 to 45 additional persons / yr
• ( 78M 135M VSL)

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Search Rescue Problem

• Create a SAR case when alerted
• Gather data, estimate uncertainties
• Use model to determine search area
• Estimate resource availability and capability
• Plan the next search
• Promulgate the search plan
• Perform the search plan
• Evaluate the completed search
• Repeat above until survivors are found and rescued

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Compact CODAR HF Radars
5 MHz
Receive Antenna
Transmit Antenna
25 MHz and 13 MHz
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MARCOOS
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Integration of CODAR and UConn Statistical
Forecasts with SAROPS 2002 Tidally Dominated
Long Island Sound 2004 - Winds Tides - Full
Continental Shelf
Arthur Allen, Chris Turner, Marion
Lewandowski, Paul Hall, Eoin Howlett, Dave
Ullman, Jim ODonnell, Todd Fake, Josh Kohut,
Hugh Roarty, Scott Glenn
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US Coast Guard Self Locating Data Marker Buoy
(SLDMB)
Drifters are Tossed Overboard Expand and Drift
with the Surface currents Positions transmitted
to Shore via satellite
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Comparison of Actual Drifter Tracks with CODAR
Data
New Jersey Shelf (2004)
Long Island Sound (2002)
Nearest Coastal Site CODAR Currents SLDMB Drifter
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Comparison of Actual Drifter Tracks with CODAR
Data
New Jersey Shelf (2004)
Long Island Sound (2002)
Nearest Coastal Site CODAR Currents SLDMB Drifter
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Lost Glider Recovery Rutgers, USCG, Civil Air
Patrol
Civil Air Patrol
Glider ru02 as seen from Search Plane
Communication Plane
Search Plane
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MARCOOS Forecast Models HF Radar Data
Assimilation
Statistical Model STPS U. Connecticut Dynami
cal Models NYHOPS Stevens Institute of
Technology ROMS Rutgers University HOPS
U. Massachusetts, Dartmouth
All 4 forecasts will be evaluated for inclusion
in the USCG search planning tool, SAROPS