Extreme 50-Year Return Wind Ensemble

This item contains the ocean and coastal, near-global, 10-min equivalent 50-year return winds derived from the three reanalysis products CFSR, ERA5 and MERRA-2 calculated during the GASPOC project. They are provided at four different heights, namely 50 m, 100 m, 150 m and 200 m. For each of the three reanalysis products, two sub-layers are available:

- A high resolution layer with approximately 275 m grid spacing which provides the data for the coastal region between 0 km and 200 km distance from the shoreline. It is made available on the same grid and spatial extension as the Global Wind Atlas for convenience.

Naming convention: extreme_wspd_${height}m_epsg4326_landmasked.${reanalysis}.tif

- Beyond the 200 km coastline, data is provided on a regular 0.25x0.25 degree grid.

PLEASE NOTE: While the low resolution data layer also contains data points within the coastal zone, it is not recommended to use the low-resolution data for near-coastal estimates.

Naming convention: offshore_era5grid_epsg4326_extreme_wspd_${height}m.${reanalysis}.tif

The datasets are accompanied by a technical report with more details on the methodology, which can be accessed here: https://orbit.dtu.dk/en/publications/global-atlas-for-siting-parameters-ocean-and-coasts-ensemble-calc

The files are provided as Cloud Optimized GeoTiffs. They can be visualized using GIS software, such as the free and OpenSource Q-GIS. If working with python, rioxarray can be used to read them into an XArray Dataset for further processing.