RT info:eu-repo/semantics/article
T1 Assessment of HARMONIE-AROME in the simulation of the convective activity associated to a subtropical transition using satellite data
A1 Calvo Sancho, Carlos
A1 Quitián Hernández, Lara
A1 Bolgiani, Pedro
A1 González Alemán, Juan Jesús
A1 Santos Muñoz, Daniel
A1 Martín Pérez, María Luisa
K1 Climatología
K1 Meteorología
K1 HARMONIE-AROME
K1 Subtropical transition
K1 Spatial verification
K1 SAL object-based method
K1 Transición subtropical
K1 Verificación espacial
K1 Método SAL basado en objetos
K1 2502.01 Climatología Analítica
K1 2509 Meteorología
AB Subtropical transition events (STT) are a challenge for forecasting and research due to the hybrid characteristics they give to the cyclones. The ability and skillfulness of the HARMONIE-AROME model to reproduce the cloud structure and convection associated to the October 2014 STT is here evaluated. Brightness temperature, cloud top height and accumulated precipitation are assessed against satellite data using traditional skill scores and object-based techniques specific to forecasting spatial evaluation. The results present differences in the simulation of the cyclone between the periods before and after the transition. They also show a very good performance of the model in the location of the events and a good simulation of the intensity of the variables. The performance is sub-optimal for the estimation of the sizes of the convective objects. Brightness temperature and cloud top heights yield very good results in general, with a slight overestimation in both cases. However, the model struggles to capture the accumulated precipitation. There is scarce work evaluating the HARMONIE-AROME model in this type of events; nevertheless, the results are in line with those produced by the simulations with other numerical models. The overall performance of the model is very adequate, although it might be hindered by the internal stability of the model produced by the deep-convection computation.
PB Elsevier
SN 0169-8095
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/59483
UL https://uvadoc.uva.es/handle/10324/59483
LA eng
NO Atmospheric Research, 2023,vol. 290, 106794
NO Producción Científica
DS UVaDOC
RD 15-oct-2024