urn:SDN:CSR:LOCAL:SI29201102070 utf8 Campaña/Survey Cruise Summary record Instituto Español de Oceanografía British Oceanographic Data Centre N/A United Kingdom N/A pointOfContact 2021-11-29 ISO 19115/SeaDataNet profile 1.0 SeaDataNet geographic co-ordinate reference frames L10 2011-03-03 revision 3 https://www.seadatanet.org/urnurl/SDN:L10 World Geodetic System 84 Campaña: D361 Survey: D361 Referencia IEO: 10570 IEO ID: 10570 2011-03-19 creation urn:SDN:CSR:LOCAL:10570 urn:SDN:CSR:LOCAL:10570 National Oceanography Centre (Southampton) National Oceanography Centre (Southampton) N/A United Kingdom N/A originator The cruise D361 forms part of a study entitled 'Physical and chemical forcing of diazotrophy in the (sub)-tropical Atlantic Ocean'. The study is investigating the potential influence of iron and phosphorus availability on nitrogen fixation in regions of the tropical Atlantic Ocean. The cruise also undertakes deep trace metal clean CTD casts as part of the International GEOTRACES programme. The purpose of the cruise therefore is to undertake measurements of dissolved and particulate iron and phosporpus availability, their spatial and temporal variations, and their impact on diazotrophy in the surface ocean. Aim: To quantify the supply and determine the biogeochemical cycling of Fe and other nutrients, and relate this to N2 fixation, diazotroph species distribution and N* fields. 1. Quantify the distribution of nutrients and trace metals: Quantify surface water and water column distributions of dissolved inorganic/organic N, P, Fe, and DAl, DMn and particulate P, N, Fe, Al, Mn. 2. Quantify the rate of Fe, Al, Mn, P and N supply to surface waters: Assess the source fluxes of the key elements for diazotrophs and source tracers to the surface ocean from atmospheric deposition and internal transport via diapycnal mixing and lateral advection. 3. Identify the source of subsurface Fe enrichment: Identify whether Fe-rich subsurface waters of the tropical North Atlantic thermocline originate from the atmosphere or the shelf using Fe distributions and Al, Mn, and O2 source tracers. 4. Quantify the diazotrophic response to Fe, phosphate, DOP supply: Relate the spatial distributions of inorganic Fe and organically complexed Fe, and phosphate and DOP to diazotrophy. The specific uptake of Fe, phosphate and DOP by the whole microbial community and Trichodesmium will be assessed by shipboard incubations, radiotracer techniques and enzyme bioassays. In addition, we will identify the connection between N2 fixation rates and diazotroph community structure, by comparing size fractionated 15N2-derived rates of N2 fixation (Fig. 1) with abundance and diversity of diazotrophs using nifH phylogeny. Objective 5: Investigate how the large scale transport pathways of Fe and P influence the N* distribution: Use fine-scale isopycnic model to reveal the large-scale transport pathways of Fe and P in the (S)-T Atlantic, and their effect on the N* distribution. The cruise D361 forms part of a study entitled 'Physical and chemical forcing of diazotrophy in the (sub)-tropical Atlantic Ocean'. The study is investigating the potential influence of iron and phosphorus availability on nitrogen fixation in regions of the tropical Atlantic Ocean. The cruise also undertakes deep trace metal clean CTD casts as part of the International GEOTRACES programme. The purpose of the cruise therefore is to undertake measurements of dissolved and particulate iron and phosporpus availability, their spatial and temporal variations, and their impact on diazotrophy in the surface ocean. Aim: To quantify the supply and determine the biogeochemical cycling of Fe and other nutrients, and relate this to N2 fixation, diazotroph species distribution and N* fields. 1. Quantify the distribution of nutrients and trace metals: Quantify surface water and water column distributions of dissolved inorganic/organic N, P, Fe, and DAl, DMn and particulate P, N, Fe, Al, Mn. 2. Quantify the rate of Fe, Al, Mn, P and N supply to surface waters: Assess the source fluxes of the key elements for diazotrophs and source tracers to the surface ocean from atmospheric deposition and internal transport via diapycnal mixing and lateral advection. 3. Identify the source of subsurface Fe enrichment: Identify whether Fe-rich subsurface waters of the tropical North Atlantic thermocline originate from the atmosphere or the shelf using Fe distributions and Al, Mn, and O2 source tracers. 4. Quantify the diazotrophic response to Fe, phosphate, DOP supply: Relate the spatial distributions of inorganic Fe and organically complexed Fe, and phosphate and DOP to diazotrophy. The specific uptake of Fe, phosphate and DOP by the whole microbial community and Trichodesmium will be assessed by shipboard incubations, radiotracer techniques and enzyme bioassays. In addition, we will identify the connection between N2 fixation rates and diazotroph community structure, by comparing size fractionated 15N2-derived rates of N2 fixation (Fig. 1) with abundance and diversity of diazotrophs using nifH phylogeny. Objective 5: Investigate how the large scale transport pathways of Fe and P influence the N* distribution: Use fine-scale isopycnic model to reveal the large-scale transport pathways of Fe and P in the (S)-T Atlantic, and their effect on the N* distribution. Dr.. Eric Pieter Achterberg University of Southampton School of Ocean and Earth Science University of Southampton School of Ocean and Earth Science +44 (0)23 8059 2011 +44 (0)23 8059 3059 United Kingdom soes@noc.soton.ac.uk pointOfContact Oceanographic geographical features theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication 38 39 181 182 110 111 3 301 4 302 40 75 76 marsden_square Ten-degree Marsden Squares C37 2007-08-03 revision https://www.seadatanet.org/urnurl/SDN:C37 Santa Cruz de Tenerife departure_place SeaDataNet Ports Gazetteer C38 2007-09-20 revision https://www.seadatanet.org/urnurl/SDN:C38 Santa Cruz de Tenerife arrival_place SeaDataNet Ports Gazetteer C38 2007-09-20 revision https://www.seadatanet.org/urnurl/SDN:C38 Spain departure_country International Standards Organisation countries C32 2007-08-22 revision https://www.seadatanet.org/urnurl/SDN:C32 Spain arrival_country International Standards Organisation countries C32 2007-08-22 revision https://www.seadatanet.org/urnurl/SDN:C32 Discovery platform ICES Platform Codes C17 2007-05-14 revision https://www.seadatanet.org/urnurl/SDN:C17 research vessel platform_class SeaVoX Platform Categories L06 2007-01-13 revision https://www.seadatanet.org/urnurl/SDN:L06 South Atlantic Ocean place SeaVoX salt and fresh water body gazetteer C19 2007-03-01 revision https://www.seadatanet.org/urnurl/SDN:C19 Northeast Atlantic Ocean (40W) place SeaVoX salt and fresh water body gazetteer C19 2007-03-01 revision https://www.seadatanet.org/urnurl/SDN:C19 Not applicable utf8 oceans -20.000000 -10.000000 50.000000 60.000000 -20.000000 -10.000000 30.000000 40.000000 -30.000000 -20.000000 0.001 10.000000 -40.000000 -30.000000 20.000000 30.000000 -20.000000 -10.000000 10.000000 20.000000 -30.000000 -20.000000 20.000000 30.000000 -40.000000 -30.000000 0.001 10.000000 -30.000000 -20.000000 30.000000 40.000000 -20.000000 -10.000000 -10.000000 0.001 -30.000000 -20.000000 10.000000 20.000000 -40.000000 -30.000000 10.000000 20.000000 -10.000000 0.001 50.000000 60.000000 -30.000000 -20.000000 -10.000000 0.001 -40.000000 -30.000000 20.000000 30.000000 -20.000000 -10.000000 50.000000 60.000000 -20.000000 -10.000000 -10.000000 0.001 -30.000000 -20.000000 10.000000 20.000000 -40.000000 -30.000000 10.000000 20.000000 -30.000000 -20.000000 30.000000 40.000000 -20.000000 -10.000000 10.000000 20.000000 -10.000000 0.001 50.000000 60.000000 -30.000000 -20.000000 0.001 10.000000 -30.000000 -20.000000 20.000000 30.000000 -30.000000 -20.000000 -10.000000 0.001 -40.000000 -30.000000 0.001 10.000000 -20.000000 -10.000000 30.000000 40.000000 2011-02-07T00:00:00Z 2011-03-19T00:00:00Z XML 1 https://csr.seadatanet.org/ WWW:LINK-1.0-http--related Base de datos internacional con información de campañas desde 1873 hasta la actualidad. La presente campaña la podrás encontrar como D361. International database with information of surveys from 1873 till today. Use the tag D361 to locate the present survey. SeaDataNet - CRS inventory https://cdi.seadatanet.org/search WWW:LINK-1.0-http--related Descubre si hay datos de esta campaña disponibles, utilizando para ello la etiqueta D361 en el buscador de datos de SeaDataNet. Discover if there are available data associated to this cruise by using the tag D361 in the free search box of the SeaDataNet portal. SeaDataNet - CDI inventory Campaña/Survey Reglamento (UE) n o 1089/2010 de la Comisión de 23 de noviembre de 2010 por el que se aplica la Directiva 2007/2/CE del Parlamento Europeo y del Consejo en lo que se refiere a la interoperabilidad de los conjuntos y los servicios de datos espaciales Commission Regulation (EU) No 1312/2014 of 10 December 2014 amending Regulation (EU) No 1089/2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data services 2010-12-08 publication See the referenced specification true Reglamento (UE) n o 1089/2010 de la Comisión de 23 de noviembre de 2010 por el que se aplica la Directiva 2007/2/CE del Parlamento Europeo y del Consejo en lo que se refiere a la interoperabilidad de los conjuntos y los servicios de datos espaciales Commission Regulation (EU) No 1312/2014 of 10 December 2014 amending Regulation (EU) No 1089/2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data services 2010-12-08 publication See the referenced specification true 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. The Data Center applies standard data quality control procedures on all data. Ask the Data Center for details.