Dear colleagues,

We would like to invite you to participate in a Forum for Convective-permitting modeling for sub-seasonal to seasonal (S2S) forecasting at the upcoming Latsis symposium.  Please find links to participate in person or remotely below at the end of this message.  Please note that in-person participation is limited to 30 seats. Please feel free to forward this announcement to your colleagues that may be interested to participate remotely.

Logistical details:

Convective-permitting modeling for sub-seasonal to seasonal (S2S) forecasting
An open community forum discussion   
Time: Wednesday, 21 August, 7:30-9:00p (Central European Summer Time, GMT+2, 1730-1900 UTC)
Location: ETH Zurich main building, HG D22
Remote participation accommodated (by Zoom interface)

Forum Facilitators:
Christopher L. Castro (1), Hsin-I Chang (1), Andreas Prein (2), Melissa Bukovsky (2)
(1) University of Arizona, Tucson, Arizona  USA
(2) National Center for Atmospheric Research, Boulder, Colorado  USA

Forum Summary:

Convective-permitting modeling (CPM) yields step improvements in the physical representation of precipitation, as has been demonstrated in applications of numerical weather prediction and climate modeling.  While CPM has been used in the context of historical climate simulations and climate change projections, its application to the sub-seasonal to seasonal (S2S) forecast timescale (weeks to months) is comparatively underexplored.  New, long-term S2S reforecast products have recently been generated from operational global forecast models, analogous to CMIP models used for climate change projection.  It is now technically possible to dynamically downscale these reforecast data to CPM scale, to assess potential improvement in S2S forecast skill and create new S2S forecast metrics for extreme events.  The Coordinated Regional Ensemble Downscaling Experiment (CORDEX) provides an existing robust community framework that can be leveraged to dynamically downscale S2S reforecast data, in a globally unified way.

Within this community discussion, we will first present several overview presentations to the topic by the forum facilitators.  This will be followed by an open community discussion and collective identification of research priorities and action items proceeding forward.

The goal of this event is to foment a working group that will lead to the development of white papers, proposals, and community meetings on the topic of convective-permitting S2S forecasting.


LINK TO REGISTER FOR IN-PERSON PARTICIPATION
https://docs.google.com/forms/d/e/1FAIpQLSdBZENSPlAbktZPmnz0y4316V1Vtnzr0IlyH2izWRFYwMJ_qw/viewform?usp=sf_link


LINK TO REGISTER FOR REMOTE PARTICIPATION
https://docs.google.com/forms/d/e/1FAIpQLSfOa7c_JPcwMo71-Ie2iqMrdTM4rqsVtlzfPB1jofSGMnh2kA/viewform?usp=sf_link


For more details or questions, please contact:
Christopher Castro
clcastro@email.arizona.edu

__________________________________________________

Christopher L. Castro, Ph.D.
Professor
Department of Hydrology and Atmospheric Sciences
University of Arizona
Harshbarger Building, Room 324J2
1133 E. James E. Rogers Way
Tucson, AZ  85721-0081  USA

Office: +1 520 626-5617
Fax: +1 520 621-6833
E-mail: clcastro@email.arizona.edu
Web page: www.atmo.arizona.edu/personalpages/castro/castro.htm
Twitter: @CLCastro1974