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ARSF - Flight WM06/17: Spain, Ria de Vigo area

Status: Not defined
Publication State: published


ARSF project WM06/17 led by Desmond Barton and Jesus Torres. Site: Ria de Vigo, Spain.

Abbreviation: ARSF_WM06_17
Keywords: Not defined


Keywords: Not defined
Previously used record identifiers:

More Information (under review)

The Ria de Vigo is a coastal inlet controlled by the processes of coastal upwelling and downwelling on the adjacent continental shelf. The introduction of nutrient-rich waters far into the Ria by summer upwelling circulation (surface outflow, deep inflow) makes it highly productive and allows the economically important cultivation of mussels. Downwelling (surface inflow, deep outflow) in autumn and winter can introduce damaging 'red tides' that damage and force temporary but expensive closure of the culture. An ongoing project will elucidate the three-dimensional circulation in the Ria de Vigo and the accompanying patterns of distribution of temperature, salt, nutrients, as well as nano-, pico- and bacterio-plankton at various stages of the annual cycle. An important aspect is the role of lateral circulations and horizontal re-circulations, which may favour retention of red tides or enhance upwelling blooms. We here request complementary airborne observations during one or both of the field experiments to provide a completely synoptic sampling of the near surface distributions in the visible and near infra-red bands. These, in combination with sea truth data of phytoplankton and primary production, will provide a highly detailed mapping of the near-instantaneous situation in the Ria. The circulation is governed by the wind forcing on the continental shelf outside since the Ria itself is relatively sheltered. Airborne wind mapping would allow an unprecedented knowledge of the variation of wind forcing over the entire Ria and significantly enhance efforts to model numerically the relationships between the flow field, the hydrography and the biogeochemistry.

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