Inquiry Regarding Wave Definition and Model Application for Ocean Navigation
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I am a navigator on board container vessels, primarily engaged in ocean-going voyages rather than coastal navigation, including routes across the East Sea (Sea of Japan) and the Pacific Ocean.
I would like to inquire about the definition and application of wave data in your service.
As far as I understand, many marine weather applications utilize global numerical models such as GFS and ECMWF for wave forecasting. However, compared to other applications, the wave heights shown in your service often appear slightly higher.
In this regard, I would appreciate your clarification on the following points:
Although other applications also seem to rely on the same GFS and ECMWF wave models, could you please explain why your wave forecasts tend to show relatively higher values?
(For example, differences in post-processing, safety margins, combined sea states, or the way significant wave height is defined.)From a professional standpoint, would you consider your wave forecasts suitable and reliable for use in ocean-going navigation, particularly for long-haul voyages across open seas?
Your clarification will be very helpful for our voyage planning and risk assessment during deep-sea navigation.
Thank you in advance for your kind support. I look forward to your response.
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@박준철-7 said in Inquiry Regarding Wave Definition and Model Application for Ocean Navigation:
As far as I understand, many marine weather applications utilize global numerical models such as GFS and ECMWF for wave forecasting. However, compared to other applications, the wave heights shown in your service often appear slightly higher.
In order to verify that they use the same parameters as Windy for wave forecasting, could you tell us which marine weather applications you are referring to?
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@idefix37 Good day,
WNI (JAPAN WEATHER SERVICE) -
@박준철-7
Sorry, I haven't been able to connect to any Weathernews app or website, other than press release like
https://global.weathernews.com/news/18670/
https://global.weathernews.com/news/16014/
https://global.weathernews.com/corporate-outline/our-history/
https://global.weathernews.com/your-industry/aviation/commercial-aviation/en-route-optimization-support/ -
@idefix37 Good day,
Im sorry to make any inconvenience.
WNI has their self model.. not GFS, ECMWFBTW,
Do you apply any post-processing(Value adjustment) when using GFS or ECMWF data, or are the raw model wave heights displayed as-is? -
@박준철-7
Hello,
Apart from interpolating between the values provided by the model at the grid points, I don't think Windy applies any other post-processing. But only a member of the Windy team could confirm that.
See what I mean with grid points
