If you use SOCIB data, please acknowledge the use of these data with one of the following statements: In applications or websites: Data products used in this application were obtained from SOCIB (www.socib.es). In addition, please make visible the SOCIB logo. In publications: Citation of a dataset with DOI is shown through the corresponding landing page of the SOCIB Data Product Catalog (apps.socib.es/data-catalog) Dataset without DOI: Data used in this work were obtained from SOCIB (www.socib.es). and cite the following publication: Tintore, J. et al. (2013), The Balearic Islands Coastal Ocean Observing and Forecasting System Responding to Science, Technology and Society Needs, Marine Technology Society Journal, 47 (1), doi: 10.4031/MTSJ.47.1.10
Abstract
The Balearic RIssaga Forecasting System (BRIFS) aims to quantitatively predict the occurrence of extreme sea level oscillations associated with meteotsunamis in the Menorcan harbour of Ciutadella. Combining both atmospheric and oceanic modelling, the system is run once a day in the morning and provides a 48-hour prediction of air pressure disturbances and associated sea level response over the Balearic shelf and in Ciutadella harbour.
The Weather Research and Forecasting model (WRF) is implemented in a two-nested-grid configuration over the Western Mediterranean basin, with a grid refinement (4km) over an area around the Balearic Islands extending to the South until the Algerian coast. Ninety-seven vertical levels are employed with a finer resolution in the lower levels to adequately resolve the characteristic inversion layer associated with Rissaga phenomena. Initial state and boundary conditions are prescribed from the synoptic atmospheric conditions described by the FNL/GFS analysis/forecast from the National Centers for Environmental Prediction (NCEP).
WRF air pressure outputs with a 2-minute temporal resolution are used to force a two-nested grid configuration of the Regional Ocean Modelling System (ROMS). ROMS is a 3D free-surface, split-explicit primitive equation model with Boussinesq and hydrostatic approximations. Due to the 2-dimensional nature of the processes involved in the build-up of the rissaga, BRIFS does not consider any density stratification. The larger domain covers the Balearic Islands with a horizontal resolution of 1km. It provides the boundary conditions to the inner domain, which covers the area around Ciutadella with a spatial resolution of 10m.
Further details of the system configuration can be found in Renault et al. (2011).
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Technical notes
DISCLAIMER: The experimental products presented in this section are provided "as is" without warranty of any kind, including any implied warranties of merchantability or fitness for a particular purpose. Ongoing research is carried out to improve the system. Particular events caused by very local convection cells are known to be very challenging to reproduce. This forecasting system aims at complementing the actual AEMET Rissaga alert system by providing quantitative predictions of sea level oscillations in Ciutadella harbour. Timely delivery of daily predictions is not guaranteed.