Catálogo de datos del IEO
Campaña: D326
The main testable hypothesis of the proposed work is: Atmospheric inputs control rates of primary production and microbial diversity in oceanic waters where nutrients are limiting.
The objectives of the project are to:
1. Obtain an improved temporal and spatial estimate of atmospheric dust inputs to the tropical N Atlantic through collections on a dedicated SOLAS process cruise.
2. Obtain an improved estimate of the seawater dissolution of N, P, Fe and Zn species from aerosol dust.
3. Determine the impact of atmospheric dust derived micronutrients on microbial community production and species diversity in the surface microlayer and underlying waters.
In addition, researchers from the Archer/Geider group were on-board. The overall aim of their research was to determine the extent to which the photoprotective roles of DMSP and QAs influence their production rates in marine surface waters and hence, the production of their volatile breakdown products.
The cruise objectives for this work were to:
1. relate DMSP and QAC concentrations to plankton community structure, light regime, photoinhibition, xanthophyll cycle and MAA accumulation in varying oceanic provinces and over diel cycles.
2. determine the potential for photoinhibition and DMSP/GBT turnover in natural phytoplankton in contrasting oceanic provinces.
The cruise departed Tenerife on February 5, 2008, and we have conducted regular stations (typically 2 per day) along the cruise track. The track took us into the oligotrophic Atlantic waters, productive Cape Verde waters, and tropical waters with very high nitrogen fixation (judged initially from the Trichodesmium concentrations). The various researchers and groups have also started a range of biological experiments at different sites along the cruise track.
We have encountered a major dust event in week 2, and then from week 3 of the cruise we encountered large amounts of dust.
We have visited the TENATSO time series site near the Cape Verdes and have undertaken an extensive set of measurements there.
We have collected the atmospheric dust for elemental analyses (at UEA and NOCS), and also to produce leachates which are used on board for biological experiments.
We have undertaken sampling of the water column to analyse for dissolved and particulate metals, nutrients, dissolved organic matter, amino acids, hemes, thiols and phytochelatin synthase expression. In addition, nitrogen fixation measurements were undertaken, in tandem with nifh gene sampling.
Nitrate uptake experiments have been conducted. Furthermore, bacterial phosphate uptake experiments have been undertaken using addition of collected dust.
Halocarbon and DMS gas measurements have been conducted during the cruise. In addition, experiments have been undertaken by the Archer/Geider group on effects of high sun light exposure on DMS and GBT production.
The cruise has been very successful with a minimum of lost time.
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. Campaña: D326. http://datos.ieo.es/geonetwork/srv/api/records/urn:SDN:CSR:LOCAL:SI29200801050 |
INSPIRE
Identificación
- Identificador del fichero
- urn:SDN:CSR:LOCAL:SI29200801050 XML
- Jerarquía
- Campaña/Survey Campañas
Recurso en línea
- resource_protocol
- WWW:LINK-1.0-http--related
- resource_protocol
- WWW:LINK-1.0-http--related
Identificador del recurso
- code
- urn:SDN:CSR:LOCAL:8265
- Idioma del metadato
- Spanish; Castilian
Codificacióin
- Formato
- XML
- Versión
- 1
Proyección
- code
- World Geodetic System 84
Classification of data and services
- Categoría temática
-
- Océanos
Classification of data and services
Coupled resource
Coupled resource
Classification of data and services
Coupled resource
Coupled resource
Palabras clave
- GEMET - INSPIRE themes, version 1.0 ( Tema )
-
- Oceanographic geographical features
- Ten-degree Marsden Squares ( marsden_square )
-
- 38
- 39
- 40
- 74
- 75
- 76
- SeaDataNet Ports Gazetteer ( departure_place )
-
- Santa Cruz de Tenerife
- SeaDataNet Ports Gazetteer ( arrival_place )
-
- Santa Cruz de Tenerife
- International Standards Organisation countries ( departure_country )
-
- Spain
- International Standards Organisation countries ( arrival_country )
-
- Spain
- ICES Platform Codes ( platform )
-
- Discovery
- SeaVoX Platform Categories ( platform_class )
-
- research vessel
- SeaVoX salt and fresh water body gazetteer ( Lugar )
-
- Northeast Atlantic Ocean (40W)
Other keywords
Cobertura geográfica
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Temporal reference
Extensión tempora
- Inicio
- 2008-01-05T00:00:00Z
- Fin
- 2008-02-05T00:00:00Z
Extensión tempora
- Fecha ( Creación )
- 2008-02-05
Quality and validity
- Linaje
- El Centro de datos aplica controles de calidad estandarizados a todos los datos de los que es responsable. Contacta con el Centro de datos para más información.
Conformidad
Conformidad
Conformidad
Conformidad
Conformidad
Conformidad
- Explicación
- See the referenced specification
- Explicación
- See the referenced specification
Restrictions on access and use
- Limitación de uso
- Not applicable
- Restricciones de Acceso
- Restricciones de Acceso
Restrictions on access and use
Responsible organization (s)
Contacto para el recurso
- Nombre de la organización
- University of Southampton School of Ocean and Earth Science
- soes@noc.soton.ac.uk
Responsible organization (s)
Contacto para el recurso
- Nombre de la organización
- University of Southampton School of Ocean and Earth Science
- soes@noc.soton.ac.uk
Metadata information
Contacto para el metadato
- Nombre de la organización
- Instituto Español de Oceanografía
- N/A
- Fecha
- 2021-11-28
- Idioma del metadato
- Spanish; Castilian
- Codificación
- utf8 UTF8
