Mediterranean Sea DIVA 4D analysis of Water_body_ammonium - Winter

Originator(s): Hellenic Centre for Marine Research, Hellenic National Oceanographic Data Centre (HCMR/HNODC)
Credit Emodnet chemistry
Version 1.0
ID 2e3c3a00-f6f5-11e5-9e69-8056f28224bb
Abstract Moving 10-years winter (January-March) analysis of ammonium at Mediterranean Sea.
Every year of the time dimension corresponds to the 10-year centered average of the winter season.
Decades span from 1977-1986 until 2004-2013.
Observational data span from 1970 to 2013.
Depth range (IODE standard depths): -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, -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. Profiles were interpolated at standard depths using weighted parabolic interpolation algorithm (Reiniger and Ross, 1968). GEBCO 1min topography is used for the contouring preparation. Analyzed filed masked using relative error threshold 0.3 and 0.5.
DIVA settings: A constant value for signal-to-noise ratio was used equal to 3. Correlation length was 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 constraint applied: no.

Originators of Italian data sets-List of contributors:
o Brunetti Fabio (OGS)
o Cardin Vanessa, Bensi Manuel doi:10.6092/36728450-4296-4e6a-967d-d5b6da55f306
o Cardin Vanessa, Bensi Manuel, Ursella Laura, Siena Giuseppe doi:10.6092/f8e6d18e-f877-4aa5-a983-a03b06ccb987
o Cataletto Bruno (OGS)
o Cinzia Comici Cinzia (OGS)
o Civitarese Giuseppe (OGS)
o DeVittor Cinzia (OGS)
o Giani Michele (OGS)
o Kovacevic Vedrana (OGS)
o Mosetti Renzo (OGS)
o Solidoro C.,Beran A.,Cataletto B.,Celussi M.,Cibic T.,Comici C.,Del Negro P.,De Vittor C.,Minocci M.,Monti M.,Fabbro C.,Falconi C.,Franzo A.,Libralato S.,Lipizer M.,Negussanti J.S.,Russel H.,Valli G., doi:10.6092/e5518899-b914-43b0-8139-023718aa63f5
o Celio Massimo (ARPA FVG)
o Malaguti Antonella (ENEA)
o Fonda Umani Serena (UNITS)
o Bignami Francesco (ISAC/CNR)
o Boldrini Alfredo (ISMAR/CNR)
o Marini Mauro (ISMAR/CNR)
o Miserocchi Stefano (ISMAR/CNR)
o Zaccone Renata (IAMC/CNR)
o Lavezza, R., Dubroca, L. F. C., Ludicone, D., Kress, N., Herut, B., Civitarese, G., Cruzado, A., Lefèvre, D., Souvermezoglou, E., Yilmaz, A., Tugrul, S., and Ribera d'Alcala, M.: Compilation of quality controlled nutrient profiles from the Mediterranean Sea, doi:10.1594/PANGAEA.771907, 2011.
Keywords Oceanographic geographical features, Ammonium and ammonia concentration parameters in water bodies, Water body ammonium, Mediterranean Sea
Lineage The data used as input for this product have been extracted from the Emodnet Download Service:
Utilisation no limitations
Temporal Extent 1977-10-01 - 2013-12-31