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Contribution to CORDEX Flagship Pilot Studies: regional climate downscaling and data publishing

logo_insignia_web.png Tipo de proyecto: Proyecto nacional
Fuente Financiadora: Programa Estatal de Investigación, Desarrollo e Innovación Orientada a los Retos de la Sociedad
Programa: Spanish R+D Program 2013-2016
Código: CGL2016-79210-R
Periodo: Enero 2017 - Diciembre 2020
Estado: En progrso

The COordinated Regional climate Downscaling EXperiment (CORDEX) is an international framework, auspiced by the World Climate Research Programme, aimed at improving the coordination of international efforts in regional climate downscaling research. CORDEX Phase 1 focused on standard sets of simulations for continental-scale domains, producing a large data set for different climate change scenarios and spatial resolutions (0.44º, 0.11º), which still remain to be analyzed . Currently, however, more targeted experimental setups, referred to as Flagship Pilot Studies (FPS), are being considered to better address key scientific questions identified during Phase 1. The research team has participated in CORDEX since the beginning and now joined two projects (over Europe and Africa) sent to the first FPS call, which is not specifically funded. This project addresses our participation in CORDEX with 3 main objectives:
1) Collaborate in the studies and experiments planned in FPS, in relation to a more rigorous and quantitative assessment of the added value of regional downscaling; including process-based assessment and very high resolution simulation with convection-permitting models;
2) Data publishing and dissemination in the framework of the Earth System Grid Federation (ESGF), enabling an easier and more transparent access to data for impacts communities and developing services for this task.
3) Take advantage of the results of both CORDEX phases, analyzing the available simulations (and bias corrected versions) from multiple existing sources, in the framework of
intercomparison and climate information distillation studies.
The first challenge will be pursued using the Weather Research and Forecasting (WRF) Modelling System, already used by the research group to contribute to CORDEX. This model is an ideal testbed given the large amount of components developed with high resolution in mind. Additionally, in order to enable the last two challenges, data publishing
will play a central role, given that neither ESD (even for Phase 1) nor FPS results are currently publishable through the standard Earth System Grid Federation (ESGF) due to a
lack of appropriate metadata and its technical implementation. The last objective will focus especially on the proper application of bias correction techniques to map the simulations on the observations space, for a fairer analysis.
This project takes advantage of the know-how developed in previous research projects from the group to contribute to the new CORDEX FPS stage. The proposal is extremely
timely, given that FPS's are currently being setup and an early engagement would boost the possibilities of entering in the experimental design and effectively contribute to this
international initiative with scientific results and technical advances.

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