Development of a hydrodynamic model of the Bay of Biscay. Validation of hydrology |
| |
| Authors: | Pascal Lazure Valérie Garnier Franck Dumas Christelle Herry Marina Chifflet |
| |
| Institution: | 1. EPhysLab, Environmental Physics Laboratory, Facultad de Ciencias, Universidad de Vigo, 32004 Ourense, Spain;2. CESAM, Departamento de Física, Universidade de Aveiro, 3810-193 Aveiro, Portugal;1. SAMS, Scotland, United Kingdom;2. School of Ocean Sciences, Bangor University, Wales, United Kingdom;3. Plymouth Marine Laboratory, England, United Kingdom |
| |
| Abstract: | The hydrology of the Bay of Biscay was investigated using the regional ocean model MARS3D (Model for Application at Regional Scale). The simulated hydrology is compared to a set of various data encompassing monthly climatology, remote sensing SST, CTD casts, and coastal salinity measurements. Special focus was put on the validation over the continental shelf. This paper reports that despite some misfits, the climatological hydrology and its seasonal variability are correctly simulated. Various statistics computed over the period from 1999–2004 highlight different aspects of the hydrology. The biases and root mean square errors (RMSE) remain very weak at all depths when comparing salinity (<0.1 and <0.6 psu respectively). The predicted temperature shows a global overestimation of temperature (bias of around 0.8 °C) and the maximum errors are located near the thermocline (rmse of 1 °C at 20–40 m). The model is shown to properly reproduce the annual dynamics of sea surface temperature, as well as the dynamics of large river plumes observed by high frequency time series from coastal salinity gauges. The misfits highlighted by these various comparisons between model and observations are attributed to heat fluxes and mixing parameterisation. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
