The International Grand Global Ensemble (TIGGE) dataset consists of global medium-range ensemble forecasts from thirteen numerical weather prediction (NWP) centres, starting since October 2006. TIGGE was established as a key component of THORPEX: a World Weather Research Programme to accelerate the improvements in the accuracy of 1-day to 2 week high-impact weather forecasts for the benefit of humanity.
Although the 10-year THORPEX program ended at the end of 2014, the archive has continued and is currently undergoing its next five-year phase (2024-2028).
Please consult the Documentation section provided with this entry since it is a crucial resource for understanding the dataset, as it provides all the necessary information, including data sources, model configurations, and limitations.
Data description
Data type | Gridded |
|---|---|
Projection | See details in Models' description |
Horizontal coverage | Global |
Horizontal resolution | See details in Models' description |
Temporal coverage | From 2006 to present for most models (see details in Models' description) |
Temporal resolution | 6-hourly |
File format | GRIB 2 |
Update frequency | Daily |
Vertical coverage | From the surface to the 50 hPa (approx. 20 km) atmospheric level (see details in Models' description) |
Vertical resolution | The pressure level parameters are available on eight pressure levels 1000, 925, 850, 700, 500, 300, 250 and 200 hPa (geopotential height is provided also at the level 50 hPa) |