The myocean view service demo
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The MyOcean View Service: demo. Jon Blower, Guy Griffiths, Kevin Yang, Keith Haines (University of Reading, UK) Thomas Loubrieu ( Ifremer , France). MyOcean : GMES Marine Core Service. Operational View Service interface. THREDDS + ncWMS. THREDDS + ncWMS. THREDDS + ncWMS. Gridded data.

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The MyOcean View Service: demo

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The myocean view service demo

The MyOcean View Service: demo

Jon Blower, Guy Griffiths, Kevin Yang, Keith Haines (University of Reading, UK)

Thomas Loubrieu (Ifremer, France)


The myocean view service demo

MyOcean : GMES Marine Core Service


The myocean view service demo

Operational View Service interface

THREDDS + ncWMS

THREDDS + ncWMS

THREDDS + ncWMS

Gridded data

Gridded data

Gridded data

Analyses, forecasts, satellite products


The myocean view service demo

Operational View Service interface

Experimental interface

THREDDS + ncWMS

THREDDS + ncWMS

THREDDS + ncWMS

Oceanotron + WMS

Oceanotron + WMS

Gridded data

Gridded data

Gridded data

Point data

Point data

Analyses, forecasts, satellite products

In situ observations


What it gets used for

What it gets used for

  • Quicklooks

    • “Is this the data I want?”

  • Diagnostics

    • “Is the model behaving itself?”

  • Communication

    • Simple visualizations, posted to blogs

  • In future, may be an alternative MyOcean catalogue front-end


Important points

Important points

  • ncWMS implements some extensions to help scientific visualization

    • In situ data visualization is particularly challenging to WMS

  • By embedding into THREDDS, “WMS-enabling” the system was reasonably straightforward

    • THREDDS was familiar technology in the community

  • Data providers sometimes reluctant to spend time on configuration!

    • Color scale ranges were a particular problem!

  • I’d assumed that reliability would be a big problem, but so far so good

    • However, third-party background map services are frequently unreliable

    • But scalability still worries me!


Interoperability challenges

Interoperability challenges

  • Most WMS clients seem to work fine against MyOcean WMS servers

    • (they can’t of course access the “extensions”)

  • Some clients don’t respect parts of the WMS spec:

    • TIME and ELEVATION dimensions

    • Nested Layers

    • Layer property inheritance

    • Legend graphics

    • start/stop/period syntax for time axes

  • Need to harmonize styles to compare with third-party WMS

  • Error handling and reporting in clients is frequently unhelpful


Plans for myocean2

Plans for MyOcean2

  • Incorporate in situ data into operational View Service

  • Integrate with access control

  • Research into developing intercomparison tools

    • In-situ observations plus models


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