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HEPEX09workshop on post-processing and downscaling of atmospheric ensemble forecasts for hydrologic applications

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This HEPEX workshop will focus on scientific questions concerning how atmospheric prediction systems can be used for hydrologic streamflow applications and probabilistic quantitative precipitation forecasting. Special attention will be given to how to produce skillful and reliable ensemble forcing for hydrologic applications using both single-value and ensemble atmospheric forecasts.

Topics for the workshop may include :

(1) diagnosis of problems with atmospheric weather and climate ensemble forecast systems (for example, bias and spread deficiencies) and how they affect hydrologic predictions)

(2) comparisons with precipitation estimation techniques not based on ensemble forecasting (e.g.: based on deterministic predictions or statistical interpretation)

(3) methods for statistically correcting the ensemble forecasts to provide reliable input to hydrologic models

(4) novel techniques for using ensemble input in hydrologic models

(5) methods of verifying ensemble forecasts and evaluating their effect on hydrologic prediction systems

(6) requirements for new databases and collaborative activities that will support the hydrologic prediction system development

The workshop is meant to be interdisciplinary, fostering communication between research meteorologists and hydrologists. This contributes to the HEPEX goal of helping the hydrologic community develop hydrologic ensemble prediction systems that can be used with confidence by emergency and water resource managers.

The HEPEX workshop is planned to start on Monday 15 June, afternoon, and to close on Thursday 18 June evening. Possibly it will be followed by a COST 731 meeting on Friday 19th. COST 731 is a European project dealing with the same scientific subjects.

Registration, hotel reservation and abstract submission are available on this site (http://www.meteo.fr/cic/meetings/HEPEX09).

Short abstracts are requested before 15 March 2009 on the above subjects (1) to (6). A preliminary programme will be available on the web during April, and the final programme available on 15 May. The deadline for registration is also 15 May.

More information about this meeting is available on the above web, and more information about HEPEX is available on the web site http://hydis8.eng.uci.edu/hepex/

This meeting will be a workshop for participants to discuss science issues with each other. Although we plan to have some oral presentations (including a few invited oral overview presentations), the primary scientific interactions will occur at poster sessions and through break-out group discussions.

Hosted by Meteo-France and SCHAPI, co-sponsored by CEMAGREF, COSMOLEPS, COST731, ECMWF, EDF, EU/JRC, GEO, IAHS, Meteo-France MSC, NCAR, NOAA, SCHAPI, WCRP/GEWEX/HAP, WWRP/THORPEX.

To be held at the Conference International Centre at Meteo-France, Toulouse, France, June 15-18, 2009.