SAROPS EDS Environmental Data Server

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SAROPSEDS Environmental Data Server
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Richard Schaefer Art Allen United States Coast
Guard Office of Search Rescue
Eoin Howlett ASA
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USCG Area of Responsibility
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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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Coast Guard Wide
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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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USCG Data Parameters
Currents - Sea Surface
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USCG Data Parameters
Surface Wind Speed (10m)
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SAROPS EDS Data Server

• Access to global/regional current and wind data
• Data from NOAA, NAVY, USCG, Regional
  Associations, Universities and commercial
  providers
• Observation Data (NDBC buoys, satellite,
  drifters, Sea Surface Radar, etc.)
• Operational Forecast Model Data
• Seasonal data
• Tidal databases (harmonic databases)
• Aggregation, Objective Analysis Tools

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Example EDS Data Sources

• Winds
• FNMOC NOGAPS
• FNMOC COAMPS
• NOAA NCEP NAM
• NOAA NCEP GFS
• NDBC Buoys
• Regional Models (e.g GLERL)
• Other NWS NDFD, commercial
• Currents
• NAVO Global NCOM
• NOAA NCEP HYCOM
• ADCIRC
• CODAR
• Regional Models (e.g. GLERL)
• Other Satellite Data (AOML), commercial

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EDS Services
Global Product
Coastal Product
Aggregated Product
Regional Product
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EDS Services
Global Product
Coastal Product
Aggregated Product
Regional Product
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EDS Services
Global Product
Coastal Product
Aggregated Product
Regional Product
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EDS Services
Global Product
Coastal Product
Aggregated Product
Regional Product
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EDS Services
Global Product
Coastal Product
Aggregated Product
Regional Product
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EDS Services
Global Product
Coastal Product
Aggregated Product
Regional Product
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EDS Services
Global Product
Coastal Product
Aggregated Product
Regional Product
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EDS connected to Web Client
Access to EDS global/regional current data via
browser
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Architecture
SAROPS Client
SAROPS Client
Web Client
Internet
Web Service XML Request
NetCDF Data
COASTMAP Web Services

• Data Service
• Spatial Aggregation Service
• Temporal Aggregation Service
• Objective Analysis

Winds Currents Drifters Weather
COASTMAP Catalog Server
Environmental Database
Catalog
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Data Needs

• Good Data, readily available, timely,
  quality-controlled, and validated!
• Global coverage, offshore data as well as high
  resolution coastal data
• Observation data connected to model data
• Available in a standard format from a fast server
• Measures of Uncertainty/Error
• Live Archive of nowcast and forecast (3 months)

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Implementation Issues

• Need for conventions! And metadata! And Catalogs!
• Too much converting and duplicating data.
• Not all NetCDF/GRIB (OPeNDAP) sources are equal
• Specifying geospatial coordinates and "time" in
  the formats commonly used (NetCDF, GRIB)
• Consistent metocean data formats and distribution
  methods allows for the use of disparate data for
  a variety of activities
• Important to integrate different tools and data
  (Interoperability), web services enables that.

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