Articles | Volume 5, issue 4
Wind Energ. Sci., 5, 1469–1485, 2020
https://doi.org/10.5194/wes-5-1469-2020

Special issue: Flow in complex terrain: the Perdigão campaigns (WES/ACP/AMT...

Wind Energ. Sci., 5, 1469–1485, 2020
https://doi.org/10.5194/wes-5-1469-2020

Research article 05 Nov 2020

Research article | 05 Nov 2020

The digital terrain model in the computational modelling of the flow over the Perdigão site: the appropriate grid size

José M. L. M. Palma et al.

Data sets

Perdigão: computational mesh (ALS.NE.20) V. Batista, V. Gomes, and J. Palma https://doi.org/10.34626/uporto/gvtg-0g24

Perdigão: computational mesh (ALS.NE.40) V. Batista, V. Gomes, and J. Palma https://doi.org/10.34626/uporto/ybwb-es40

Perdigão: computational mesh (ALS.NE.80) V. Batista, V. Gomes, and J. Palma https://doi.org/10.34626/uporto/mwd6-9h81

Perdigão: computational mesh (ALS.SW.20) V. Batista, V. Gomes, and J. Palma https://doi.org/10.34626/uporto/4t5v-r909

Perdigão: computational mesh (ALS.SW.40) V. Batista, V. Gomes, and J. Palma https://doi.org/10.34626/uporto/w0jp-jf72

Perdigão: computational mesh (ALS.SW.80) V. Batista, V. Gomes, and J. Palma https://doi.org/10.34626/uporto/9eaq-4t35

Perdigão: aerial lidar survey raster map J. Palma, V. Batista, and V. Gomes https://doi.org/10.34626/uporto/8cj0-dj85

Perdigão: aerial lidar survey raster map (with buildings) J. Palma, V. Batista, and V. Gomes https://doi.org/10.34626/uporto/88r8-a206

Perdigão: Military charts raster map of perdigão region J. Palma, V. Batista, and V. Gomes https://doi.org/10.34626/uporto/126h-d173

Perdigão: SRTM raster map J. Palma, V. Batista, and V. Gomes https://doi.org/10.34626/uporto/83wp-kx09

Perdigão: Lidar point cloud J. Palma, V. Batista, V. Gomes, J. Lopes, J. Mann, and E. Dellwik https://doi.org/10.34626/uporto/fms2-rd63

Perdigão: Ortophotos in 5 cm and 20 cm resolution J. Palma, V. Batista, V. Gomes, J. Lopes, J. Mann, and E. Dellwik https://doi.org/10.34626/uporto/fvwj-bp86

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Short summary
The digital terrain model is the first input in the computational modelling of atmospheric flows. The ability of thee meshes (high-, medium- and low-resolution) to replicate the Perdigão experiment site was appraised in two ways: by their ability to replicate the terrain attributes, elevation and slope and by their effect on the wind flow computational results. At least 40 m horizontal resolution is required in computational modelling of the flow over Perdigão.