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MaritimeDrift

MaritimeDrift. Where do I search?. Agenda. Lecture: DISCUSS how environmental forces affect drift. Lab Exercise. Datum. Where do we search?. What is Datum?. The IAMSAR Manual Defines Datum as . . . A geographic “point, line or area” used as a reference in search planning.

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MaritimeDrift

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  1. MaritimeDrift Where do I search?

  2. Agenda Lecture: • DISCUSS how environmental forces affect drift. • Lab Exercise

  3. Datum Where do we search?

  4. What is Datum? The IAMSAR Manual Defines Datum as . . . A geographic “point, line or area” used as a reference in search planning.

  5. Search Object S/V Raft PIW PIW Raft S/V

  6. Incident Position • There are several ways to represent the distress position • LKP • Area • Voyage

  7. Environmental Data • Two main factors causing drift. • Current • Wind

  8. DMB’s • Datum Marker Buoy (DMB) • Self Locating Datum Marker Buoy (SLDMB)

  9. SAROPS Drift Simulation • drifts thousands of particles • each particle will have currents & winds • able to drift up to four search objects • subsequent drifts recalculate from origin • applies errors and variances to those winds and currents

  10. LKP When the particles are converted into a probability grid, you end up with a display showing the higher probability areas.

  11. Any Questions? Take a 10 minute break

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