Claudio explores the seamless nature of the Met Office Unified Model and the benefits of stochastic physics schemes for weather and climate models.
Areas of expertise:
traceability of the Met Office Unified Model hierarchy across space- and time-scales;
stochastic physics schemes applied to General Circulation Models;
numerical modelling of atmospheric and oceanic processes.
Claudio's work explores the seamless nature of the Unified Model across space- and time-scales, trying to understand the mechanisms behind resolution dependent biases and when it is possible to offset these by the implementation of stochastic physics schemes.
Claudio works closely with other members of the Met Office, including Glenn Shutts in Parametrizations, to develop and adapt current stochastic schemes to climate models, in order to provide a subgrid source of variability that might offset some absences of small scale processes in low-resolution models. The stochastic schemes developed and tested by Claudio, such as Stochastic Kinetic Energy Backscattered Scheme (SKEB) or Stochastic Parameterization of Tendencies (SPT), have been developed to increase the ensemble spread (thus push the model away from the main attractor). The implementation of stochastic schemes in deterministic climate GCMs is a challenging task that has not been carried out before.
Another of Claudio's roles inside the Met Office is to investigate possible ways to improve low resolution climate models and make them more "traceable". His work aims to minimize the resolution decrease impact on the main flow by testing subtle and punctual changes in the model's formulation. One example of this is the use of higher interpolation schemes for the Semi-Lagrangian departure point, which has proven to have a positive impact in the representation of mid latitude variability.
Claudio joined the Met Office in July 2009 and is part of the Global Modelling team. Before that he worked for two years within a research project that studied the sensitivity of stratospheric dynamics to the variability of certain chemical species. This followed a masters degree in Meteorology and Geophysics at the Universidad Complutense de Madrid, in his hometown Madrid, Spain. Before that, he did a Spanish equivalent five-year program degree in Physics, specialising in atmospheric physics, at the same university.