Oilmap

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SAROPS Search and Rescue Optimal Planning System
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SAROPS Team

• United States Coast Guard
• Northrop Grumman
• Applied Science Associates
• Metron

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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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USCG Transition

• SARTools
• Joint Automated Worksheet (JAWS)
• Near-shore search planning
• Based on 1950s paper pencil technology
• Computer Assisted Search Planning (CASP)
• Offshore search planning
• Based on 1970s technology
• SAROPS
• Technologically current software tool
• Near-shore and offshore search planning
• Extensible to land-based search planning

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C2PC(CG) / SAR-PC typical view
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CASP Typical View via C2PS/SAR Tools
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SAROPS Prototype Display
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SAROPS Goals

• To provide fast, simple Search Rescue
  predictions
• Minimise data entry and potential for error
• Automate data linkages
• Environmental Data Inputs
• Search Action Plan Outputs
• Simple Visualization of Results

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SAROPS Scenario Types

• Voyage scenario where object can pass through or
  loiter in a number of locations (positions or
  areas) using any combination of great circle and
  rhumb line routes
• Initial Position (with bivariate normal
  uncertainty) and time uncertainty for an event
  plus an offset for initial location and time of
  distress
• Positions obtained from COSPAS-SARSAT, other
  GMDSS
• Lines of Bearing (from Radio Direction Finding,
  Flare Sightings, Loran, and others)
• Areas defined by polygons
• Reverse Drift scenarios
• Scenarios may be weighted

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SAROPS Components

• Graphical User Interface/ (GUI)
• Environmental Data Server (EDS)
• Simulator (SIM)

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GUI Requirements

• Deployable on ESRI GIS mapping engine (C/JMTK)
• Wizard based interface
• Minimize keystrokes
• Chart support (vector/raster)
• Display environmental data
• Animated display capabilities
• Display recommended search plans/areas/patterns
• Display probability maps (by scenario, object
  type or combined)
• Reporting

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Example Scenario
A Sample Voyage
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SIM Requirements

• Monte Carlo (particle filter) simulation
• Simulate pre-distress motion fixed hazards
• Simulate distress incidents and outcomes
• Simulate post-distress motion (drift)
• Calculate near-optimal search plan (max POS)
• Simulate simultaneous SRU and Search Object
  motion (use POD vs. range at CPA on each leg)
• Compute cumulative POS
• Account for effects of previous unsuccessful
  searching when recommending subsequent search
  plans.

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Future SIM Enhancements

• Multiple-rectangle Optimal Search Plans
• Optimal Survivor Search
• Canadian Cold Environment Survival Model
• Moving Hazards (Storms, Fronts, etc.)
• Improved Detection (sensor) Modeling

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EDS Requirements

• Water current data
• Wind data
• Other (visibility, cloud cover, sea state, etc)
• Accommodate scales/resolutions automatically
• Global land database
• Expansion of data products and uses

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EDS
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How do they communicate?
GUI
SIM
launch process
Sarops COM Extension
SaropsSim Java
EDS
.NET Web Services
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ArcGIS based Architecture - Conceptual
WWW
C O P EXT
ArcGIS Mapping Framework
TMS
GEBASE
EDS
Maptech
MORE EXTS
3D Analyst

• SAROPS Extension
• GUI
• SIM

• SAR Tools Extension
• Flares, Patterns, Etc

Spatial - A
GeoStat - A
WeatherFlow
C-Map
Other
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SAROPS Prototyping
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Example of Fixed Hazard
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Example of Fixed Hazard
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Example of Fixed Hazard
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Tidal Only SAROPS/CODAR Estimate Actual Drift
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Thank You!