Atlantic Sea DIVA 4D analysis of Water_body_nitrate_plus_nitrite - Winter

Date(s) (Creation)
Originator(s): IFREMER / IDM / SISMER - Scientific Information Systems for the SEA
Resource provider(s): IFREMER / DYNECO- Coastal Environment Dynamics department, IEO/ Gijon Oceanographic Centre, IEO/ Santander Oceanographic Centre, IEO/ La Coruna Oceanographic Centre, IEO/ Vigo Oeanographic Centre, IEO/ Malaga Oceanographic Centre, IEO/ Cadiz Oceanographic Centre, Universite de la Rochelle / Litoral Environnement et Societe (LIENSS) - UMR 7266, Ifremer / Crela, IEO/ Oceanographic Centre of Canary Island, Canary Institute of Marine Sciences, IFREMER / DYNECO/PELAGOS-LABORATOIRE D'ECOLOGIE PELAGIQUE, IHPT, Hydrographic Institute, EPOC - Geology and Oceanography Department, Odessa Branch of SOI (State Oceanographic Institute)
Credit Emodnet chemistry
Version 1.0
ID c053a0fe-1c0c-11e6-b783-40a8f051e8d0
Abstract Moving 10-years winter (January-March) analysis of nitrate plus nitrite at Atlantic Sea. Every year of the time dimension corresponds to the 10-year centred average of the winter season. Decades span from 1984-1993 until 2005-2014. Observational data span from 1962 to 2014. Depth range (IODE standard depths): -3000.0, -2500.0, -2000.0, -1750, -1500.0, -1400.0, -1300.0, -1200.0, -1100.0, -1000.0, -900.0, -800.0, -700.0, -600.0, -500.0, -400.0, -300.0, -250.0, -200.0, -150.0, -125.0, -100.0, -75.0, -50.0,-40.0, -30.0, -20.0, -10.0, -5.0, -0.0 Data Sources: observational data from SeaDataNet/EMODNet Chemistry Data Network. Description of DIVA analysis: Geostatistical data analysis by DIVA (Data-Interpolating Variational Analysis) tool. GEBCO 1min topography is used for the contouring preparation. Analyzed filed masked using relative error threshold 0.3 and 0.5 DIVA settings. Signal to noise ratio and correlation length were optimized and filtered vertically and a seasonally-averaged profile was used. Logarithmic transformation applied to the data prior to the analysis. Background field: the data mean value is subtracted from the data. Detrending of data: no, Advection consraint applied: no.
Keywords Oceanographic geographical features, Nitrate+nitrite concentration parameters in the water column, Water body nitrate plus nitrite, Atlantic Ocean
Lineage The data used as input for this product have been extracted from the Emodnet Download Service: http://www.seadatanet.org/Data-Access/Common-Data-Index-CDI
Utilisation no limitations
Temporal Extent 1984-01-01 - 2014-03-31