meteoblue NMM weather models are based on the NMM (Nonhydrostatic Meso-Scale Modelling) technology
Models calculation is done for "domains" - large areas covering parts of or entire continents, for which a complete forecast is calculated. Domains are embedded in larger scale Global Models, which provide the "boundary" conditions (e.g. the air currents coming into or moving out of the domain area) for the days of the forecast.
Each domain is divided into grid cells which are rectangularly arranged and evenly spaced between each other. The average distance between the grid centers (grid points) is the "spatial resolution
", which varies from 25 km down to 1 km. Domains typically have 55 atmospheric levels, which range from the surface to approximately 14 Kilometers altitude.
Each grid cell has its own position, altitude, exposition, land surface type and boundary conditions. The altitude is defined using the median altitude of the grid cell area, as taken from high resolution (~100 m) Land Surface models.
This approach allows calculation of the weather specifically for each area, with uniform high quality from a city center over airports to distant mountains areas, and provides a unique weather forecast quality and consistency
With the introduction of several continental
NMM models, meteoblue has established itself as the largest private producer of weather forecast data since 2007. No other private supplier covers as large an area in the same detail
meteoblue is also the first provider worldwide to daily produce hourly weather forecasts in spatial resolution
of less than 20 Km for large parts of Africa, entire South America and South East Asia.