Data/hora: 14/06/2024 04:20:19

Provedor de dados: | Institutional Archive of Ifreme (ArchiMer)
País: | France
Título: | Mise en place d’une nouvelle méthodologie pour la mesure in situ des vitesses verticales océaniques grâce aux données de la campagne FUMSECK 2019
Autores: | Comby, Caroline.
Data: | 2020
Ano: | 2020
Palavras-chave: | Vitesses verticales; Processus de fine échelle; Campagne FUMSECK; ADCP.; Vertical velocities; FUMSECK cruise; Fine-scale processes; ADCP.
Resumo: | Vertical velocities knowledge is essential to study fine-scale physical processes in the surface layers of the ocean and to understand biological production mechanisms. However, these vertical velocities are often neglected due to mainly two reasons: their order of magnitude (mm.s-1) lower than the one of the horizontal velocities (cm.s-1), and the challenge of this in situ measurement. The FUMSECK cruise, which took place in spring 2019, in the gulf of Genoa, collected in situ measurements of vertical velocities using various instruments, including Acoustic Doppler Current Profilers (ADCP). The analysis of these data, object of this report, required the elaboration of an original processing chain, first developed for the data of the 5th beam of a Sentinel V (ADCP next generation), then generalized to other types of acoustic recording of vertical velocities. We obtain vertical velocity estimates of the order of mm.s-1, as expected, and we show the accuracy of these measurements for all datasets. Finally, the complementary use of satellite data (sea surface temperature, chlorophyll concentration, altimetric currents), together with the continuous in situ physical and biological measurements, result in a three-dimensional view of fine-scale dynamics. Therefore, the promising results of this innovative study open up the possibility of generalizing in situ vertical velocity measurements in the ocean.
Tipo: | Text
Idioma: | Francês

Identificador:

https://archimer.ifremer.fr/doc/00641/75334/75998.pdf

https://archimer.ifremer.fr/doc/00641/75334/

Formato: | application/pdf

Fonte:

info:eu-repo/semantics/openAccess

restricted use