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  • CLS-1.1: Historic Metocean data for high level risk assessment

 

 Historic Metocean data for high level risk assessment

  1. Pre-License

CLS_OFF.1.1 : Historic Metocean data for high level risk assessment

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Challenge ID

CL_OFF.1.1

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Title

Historic Metocean data for high level risk assessment

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Originator of Challenge

Metocean Expert / Tullow Oil

 

General description

 

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What data/products do you currently use ?

Mostly historic records and metocean data mapping.

For historic metocean data : Global freely available historic data as HYCOM

For Waves data : Globewave

For Currents data : Globecurrent

For historical storms : Imagery of tropical events

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When do you use this kind of dataset?

These data are needed for risk assessment and new country entry assessment

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What are your actual limitations and do you have a work around? 

Actual limitations:

  • The statistics based on historical data are no longer reliable due to the impact of climate change.

 

Actual limitations concerning satellite imagery :

  • Large temporal and spatial smoothing in most product (altimetry)
  • Lack of regular passes, sensor switch off, lack of downloading station
  • Not possible to systematically study a given phenomena.
  • Underestimation of wave heights
  • Costs and accessibility of EO data are both an issue.

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Needs and expectations on EO data

Use of EO products in order to validate the metocean characteristics collected on a new area.

EO products resolution: smaller scale features to be visible on satellite products.

EO products Reliability: validation metrics could be useful.

 

Challenge classification

 

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Lifecycle stage

Pre license

Exp.

Dev.

Prod.

Decom.

Score from impact

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Geographic context/restrictions

  • Worldwide
  • West Africa
  • Atlantic margins

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Topographic classification / Offshore classification

  • Deep/ultra deep water
  • Shallow water
  • Coastal water
  • Sea floor
  • Tidal regions (region of very string tides)
  • Inland Sea/lake: Caspian sea
  • River Plume areas

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Activity impacted/concerned

New country entry assessments, new activity within our existing assets

Risk mapping, identifying operational constraints, cost and timescale management

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Urgency

(How quickly does the user need the solution)

Immediate (0-2 yrs);

Short term (2-5 yrs)

 

Information requirements

 

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Update frequency

Ocean processes: as high as possible/3 hours.

Access to data via FTP / portal interfaces – direct download for improved delivery times.

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Temporal resolution

10 min

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Spatial resolution

100m for metocean

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Data quality

n/a

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Data Coverage and extent

Along track composite, geostationary is the best.

Programmable is a disadvantage, it limits the use, and is not a good historical archive.

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Example formats

GeoTIFF, .kml,jpeg, mostly import matrix of data in matlab ,ECW, JP2000, xml – copy of raw data, enhanced and full band non enhanced data

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Timeliness

Not urgent for historical

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Existing standards

Company standards for GIS and remote sensing deliverables – interested in seeing more standard across the industry

 

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