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Welcome to a museum of THORPEX Interactive Grand Global Ensemble (TIGGE)!

The TIGGE is a key component of the THORPEX project, which provides operational global ensemble forecast data quasi-operationally (2-day delay). The TIGGE portals provide the TIGGE data freely only for research and education purposes. For details, visit the WMO THORPEX website or the TIGGE website. This page is operated for an advertisement of TIGGE by Dr. Mio MATSUEDA (JAMSTEC, Japan) in cooperation with Dr. Tetsuo NAKAZAWA (WMO). This page is updated every day with a 3-day delay.

If you want to use TIGGE data, sample scripts would help you. Enjoy the TIGGE data!

About TIGGE data

　　・Latest details of operational global ensemble prediction system in TIGGE portals as of December 2010 [pdf]


Real-time monitor of TIGGE forecasts  Updated every day!

　　・Spaghetti diagram, ensemble mean, and ensemble spread for Z500

　　・MJO forecast

　　・Ensemble-based warnings for extreme weather events [normal style or Google Map style]  New!   (a short guide [pdf])

　　・Ensemble-based occurrence probability of extreme events  New!   (a short guide [pdf])

　　・Ensemble-based occurrence probability of blocking over the NH

　　・EPS meteogram (around Japan and South Korea)


Verifications of TIGGE forecasts  Updated every month or season!

　　・Daily RMSE and ensemble spread for Z500, T850, T2m, U850, V850, U200, and V200   (verification scores [pdf])

　　・Seasonal-mean RMSE and ensemble spread for Z500, T850, T2m, U850, V850, U200, and V200

　　・Scatter diagram between daily RMSE and ensemble spread for Z500 over the NH

　　・Seasonal-mean Z500 bias

　　・Predicted blocking frequency over the NH  (blocking index [pdf])


Links

　　・WMO THORPEX website

　　・TIGGE website

　　・CMA TIGGE portal

　　・ECMWF TIGGE portal

　　・NCAR TIGGE portal

　　・The Lead Centre on Verification of Ensemble Prediction System (JMA)

　　・Research articles using TIGGE data

　　・TIGGE Cyclone Exchange

　　・North Western Pacific Tropical cyclone Ensemble Forecast Project

　　・Third THORPEX International Science Symposium (TTISS) website