The What, Why & How of Nautical MeteoBase for the Shipping Industry

Metocean conditions affect all phases of a passage, so reliable and accurate forecasts are essential.  This data helps address the main concerns that come with working in shipping: managing costs, keeping voyages on track, and ensuring the crew and assets are safe.

 

For companies working in shipping, MeteoGroup offers a nautical specific model: Nautical MeteoBase (NMB). It is the critical forecast data engine that feeds all marine-related products used by the industry. NMB draws on various sources of atmospheric and oceanographic model forecast data, to deliver accurate weather forecasts.

The unique technology enables shipping companies to interact with the forecast data in a way that easily integrates into their daily operations. They can accurately plan for weather-related incidents, avoiding routes that will impact on KPIs or cause damage to cargo.
 

How the experts combine models to create the best forecasts for shipping companies

 

Weather experts improve the forecast by combining data from different weather models, including ECMWF, UKMO, KNMI, and NCEP/NOAA. Each model is given its weight, based on its relative performance. The weights are variable depending on the forecast lead time.

Through model mixing, NMB then enhances the strong points of the input models and reduces the weak sides, which improves the accuracy and reliability of the forecast.

The raw NMB data can be improved further through:

 

●               A near-shore post-processing module called Rose, which can incorporate meteorologist expert knowledge to reduce localized model imperfections

●               Automated local calibration using observations with a Kalman filter – an algorithm that reduces systematic errors

●               Manual adjustment by meteorologists interpreting and combining multiple additional data sources, e.g. observations and satellite

 

The NMB output is available on a global 1.0x1.0-degree grid and, for high-precision regional forecasts, on 0.1x0.1 fine-mesh grids. These fine mesh grids are available as standard in highly used areas but can also be produced for any point in the sea globally on customer request. On request, the weather experts can also run high-resolution SWAN wave forecasts for specific near-shore locations.

"Standard metocean models provide a great starting point. However, to improve accuracy, it requires weather experts to combine different models, apply corrections for near-shore locations, and make manual adjustments. This is especially important in areas where there are limited or no observations."

- Maurits Geuze
Application Domain Expert - Marine

How the experts combine models for the best forecasts for shipping companies

 

Weather experts improve the forecast by combining data from different weather models, including ECMWF, UKMO, KNMI, and NCEP/NOAA. Each model is given its weight, based on its relative performance. The weights are variable depending on the forecast lead time.

 

Through model mixing, NMB enhances the strong points of the input models and reduces the weak sides, which improves the accuracy and reliability of the forecast.

 

The raw NMB data can be improved further through:

 

●                   A near-shore post-processing module called Rose, which can incorporate meteorologist expert knowledge to reduce localized model imperfections

●                   Automated local calibration using observations with a Kalman filter – an algorithm that reduces systematic errors

●                   Manual adjustment by meteorologists interpreting and combining multiple additional data sources, e.g. observations and satellite

 

The NMB output is available on a global 1.0x1.0-degree grid and, for high-precision regional forecasts, on 0.1x0.1 fine-mesh grids. These fine mesh grids are available as standard in highly-used areas but can also be produced for any point in the sea globally on customer request. On request, the weather experts can also run high-resolution SWAN wave forecasts for specific near-shore locations.


What to learn more about shipping related topics? Visit our Shipping Knowledge Base now.
 

Visit Shipping Knowledge Base
 

Standard metocean models provide a great starting point. However, to improve accuracy, it requires weather experts to combine different models, apply corrections for near-shore locations, and make manual adjustments. This is especially important in areas where there are limited or no observations.

- Maurits Geuze
Application Domain Expert - Marine