Mes: octubre 2012

First impressions on ERA5

ECMWF has just made available two month of data as teaser for their new coming reanalysis project, ERA5. ERA5 will finally give sense to the ERA-Interim name and replace it with a new set of data streams offering a significant amount of improvements… Read more

How is Vortex turbulence computed?

We derive turbulence directly from our core model, WRF. This is a mesoscale model, or better a numerical weather prediction model, with multi-scale capabilities allowing (somehow) seemles modeling chain. Strictly, we can say that WRF dynamics solver is a conservative finite differences code that integrates the non-hydrostatic compressible Euler equations. Currently, we are working in …

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Does Vortex produce reliable results within a forest?

Vortex MAST results have been compared fairly successfully against user measurements taken inside or near a forest after certain precautions have been taken: Vortex land use data comes from satellite information. Such information can distinguish between different types of trees but says nothing about the trees’ height. Depending on the forest, it is advisable to …

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I have altitude or roughness data at a finer resolution than 100m. May I use them?

No, sorry. One of Vortex’s main aims is to provide our customers with fast results. This is only possible by automating the calculation process. Accepting your own surface data as an input for the simulation would imply a certain degree of manual work (revisions, corrections, etc.) that would slow down the whole proces. If you …

I have altitude or roughness data at a finer resolution than 100m. May I use them? Leer más »

At which height are Vortex SERIES computed?

Vortex SERIES are delivered at any height between 50 and 150m a.g.l. However, be aware than SERIES are a Mesoscale product of 3km-resolution, thus not directly comparable against actual measurements at a particular point and height but designed for MCP (correlation) purposes only. If you intend to compare modeling results against actual measurements you should …

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Which technology runs behind the Vortex interface?

Vortex’s system core, WRF, is a sophisticated code that has been effectively employed to describe the physics and dynamics of atmospheric circulations with a significant degree of realism at a wide range of scales. WRF is neither a microscale nor large-scale model, but is a one-in-all. WRF accuracy is based on the ability to portray …

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