scholarly journals Aragonite saturation state in a continental shelf (Gulf of Cádiz, SW Iberian Peninsula): evidences of acidification in the coastal area

2021 ◽  
pp. 147858
Author(s):  
Dolores Jiménez-López ◽  
Teodora Ortega ◽  
Ana Sierra ◽  
Rocío Ponce ◽  
Abelardo Gómez-Parra ◽  
...  
Keyword(s):  
Continental Shelf ◽  
Iberian Peninsula ◽  
Coastal Area ◽  
Gulf Of Cadiz ◽  
Saturation State ◽  
Aragonite Saturation ◽  
Gulf Of Cádiz

scholarly journals Coupling between the thermohaline, chemical and biological fields during summer 2006 in the northeast continental shelf of the Gulf of Cádiz (SW Iberian Peninsula)

2010 ◽  
Vol 74 (S1) ◽  
pp. 47-56 ◽  
Author(s):  
Eleonora Anfuso ◽  
Rocio Ponce ◽  
Carmen Gonzalez Castro ◽  
Jesús M. Forja
Keyword(s):  
Continental Shelf ◽  
Iberian Peninsula ◽  
Gulf Of Cadiz ◽  
Gulf Of Cádiz

Stratigraphic evidence of an upper Pleistocene TST to HST complex on the Gulf of Cádiz continental shelf (south-west Iberian Peninsula)

2002 ◽  
Vol 22 (2) ◽  
pp. 95-107 ◽  
Author(s):  
Lobo F. ◽  
Hernández-Molina F. ◽  
Somoza L. ◽  
V. Díaz del Río ◽  
Dias J.
Keyword(s):  
Continental Shelf ◽  
Iberian Peninsula ◽  
Gulf Of Cadiz ◽  
Upper Pleistocene ◽  
South West ◽  
Gulf Of Cádiz

scholarly journals Tidal and seasonal carbon and nutrient dynamics of the Guadalquivir estuary and the Bay of Cádiz (SW Iberian Peninsula)

2013 ◽  
Vol 10 (7) ◽  
pp. 4481-4491 ◽  
Author(s):  
M. Ribas-Ribas ◽  
E. Anfuso ◽  
A. Gómez-Parra ◽  
J. M. Forja
Keyword(s):  
Continental Shelf ◽  
Nutrient Dynamics ◽  
Diurnal Changes ◽  
Gulf Of Cadiz ◽  
Mean Velocity ◽  
Guadalquivir Estuary ◽  
Gulf Of Cádiz ◽  
The Mean ◽  
Bay Of Cadiz ◽  
Bay Of Cádiz

Abstract. To study the effects of the physical environment on carbon and nutrient cycle dynamics on the north-eastern shelf of the Gulf of Cádiz, changes in currents, tides, salinity, temperature, carbon system parameters (fugacity of CO2 (fCO2), dissolved organic carbon, dissolved inorganic carbon (DIC) and pH) and other related parameters(dissolved oxygen, total dissolved nitrogen (TDN), nutrients and suspended particulate matter) were measured in transects across the Guadalquivir estuary and Bay of Cádiz mouths. The main objective of this study is to investigate the influence of these inner ecosystems on the carbon and nutrient distributions on the adjacent continental shelf. Three cruises were undertaken in June 2006, November 2006 and February 2007. During the whole study period, Guadalquivir estuary exported components at a rate of 3 Gmol of SiO2, 4 Gmol of DIN, 3 Gmol of TDN, 31 Gmol of DOC and 604 Gmol of DIC per year. On the other hand, Bay of Cádiz imported 3 Gmol of SiO2, 1 Gmol of DIN, 2 Gmol of TDN, 33 Gmol of DOC and 562 Gmol of DIC per year. Diurnal variability of fCO2 could have a potentially important implication on the estimate of air–sea CO2 fluxes. Tides influence velocity and transport of carbon and nutrients: we found statistically significant differences (p < 0.0001, n = 220) between the flood tide (the mean velocity was 4.85 cm s–1) and the ebb tide (the mean velocity was −5.67 cm s–1). Biological activity and diurnal changes have also an important role on the carbon and nutrient dynamics. Seasonal carbon and nutrient variations were found. During June, both systems were exporting components to the adjacent continental shelf of the Gulf of Cádiz, whereas in February both systems were importing. Monthly studies should be undertaken to completely understand this dynamic system.

scholarly journals Benthic nutrient recycling on the northeastern shelf of the Gulf of Cádiz (SW Iberian Peninsula)

2009 ◽  
Vol 390 ◽  
pp. 79-95 ◽  
Author(s):  
S Ferrón ◽  
F Alonso-Pérez ◽  
E Anfuso ◽  
FJ Murillo ◽  
T Ortega ◽  
...  
Keyword(s):  
Iberian Peninsula ◽  
Nutrient Recycling ◽  
Gulf Of Cadiz ◽  
Gulf Of Cádiz ◽  
Northeastern Shelf

scholarly journals Tidal and seasonal carbon and nutrients dynamics of the Guadalquivir Estuary and the Bay of Cádiz (SW Iberian Peninsula)

2012 ◽  
Vol 9 (10) ◽  
pp. 14537-14558
Author(s):  
M. Ribas-Ribas ◽  
L. I. Carracedo ◽  
E. Anfuso ◽  
J. M. Forja
Keyword(s):  
Continental Shelf ◽  
Dissolved Inorganic Carbon ◽  
Gulf Of Cadiz ◽  
Diurnal Variability ◽  
Guadalquivir Estuary ◽  
The North ◽  
Total Dissolved Nitrogen ◽  
Gulf Of Cádiz ◽  
Bay Of Cadiz ◽  
Bay Of Cádiz

Abstract. To study the effects of the physical environment on carbon and nutrients cycles dynamics in the north eastern shelf of the Gulf of Cádiz, changes in currents, tides, salinity, temperature, carbon system parameters (fugacity of CO2 (fCO2), dissolved organic carbon, dissolved inorganic carbon and pH) and others related (dissolved oxygen, total dissolved nitrogen, nutrients and suspended particulate matter) were measured in transects across the Guadalquivir Estuary and Bay of Cádiz mouths. Thus, the main objective of this study is to investigate the influence of these inner ecosystems on the carbon and nutrient distributions in the adjacent continental shelf. Three cruises have been undertaken in June 2006, November 2006 and February 2007, each one covering one complete tidal cycle during June, both systems were exporting components to the adjacent continental shelf of the Gulf of Cádiz. In an annual scale, Guadalquivir Estuary exported components while Bay of Cádiz imported them. Diurnal variability of fCO2 could have a potentially important implication on the estimate of air-sea CO2 fluxes. Monthly studies should be undertaken to completely understand this dynamic system.

Holocene highstand deposits in the Gulf of Cadiz, SW Iberian Peninsula: A high-resolution record of hierarchical environmental changes

2005 ◽  
Vol 219 (2-3) ◽  
pp. 109-131 ◽  
Author(s):  
F.J. Lobo ◽  
L.M. Fernández-Salas ◽  
F.J. Hernández-Molina ◽  
R. González ◽  
J.M.A. Dias ◽  
...  
Keyword(s):  
High Resolution ◽  
Iberian Peninsula ◽  
Environmental Changes ◽  
Gulf Of Cadiz ◽  
Gulf Of Cádiz

scholarly journals Factors controlling pCO<sub>2</sub> variability in the eastern Gulf of Cádiz (SW Iberian Península)

2019 ◽  
Author(s):  
Dolores Jiménez-López ◽  
Ana Sierra ◽  
Teodora Ortega ◽  
Soledad Garrido ◽  
Nerea Hernández-Puyuelo ◽  
...  
Keyword(s):  
Iberian Peninsula ◽  
Surface Waters ◽  
Mean Value ◽  
Gulf Of Cadiz ◽  
Partial Pressure Of Co2 ◽  
Gulf Of Cádiz ◽  
Eastern Shelf ◽  
Guadalquivir River ◽  
Range Of Variation ◽  
Capture Capacity

Abstract. Spatiotemporal variations of the partial pressure of CO2 (pCO2) were studied during 8 oceanographic cruises conducted between March 2014 and February 2016 in surface waters of the eastern shelf of the Gulf of Cádiz (SW Iberian Península) between the Guadalquivir River and Cape Trafalgar. pCO2 presented a range of variation between 320.6 and 513.6 µatm, with highest values during summer and autumn and lowest during spring and winter, showing a linear dependence between pCO2 and temperature. The distributions of pCO2 were not homogeneous. Spatially, there was a general decrease from coastal to off-shore stations associated with continental inputs and presented an increase in the zones deeper than 400 m due to the influence of the eastward branch of the Azores Current. On the other side, the study area acted as source of CO2 to the atmosphere during summer and autumn and as a sink in spring and winter, with a mean value for the study period of −0.18 ± 1.32 mmol m−2 d−1. In the Guadalquivir and Sancti Petri sections, the CO2 fluxes decreased towards offshore, whereas in the Trafalgar section increased due to the presence of an upwelling. These results highlighted the Gulf of Cádiz as a CO2 sink, with a capture capacity of 14.9 Gg year−1.

Methane dynamics in the coastal – Continental shelf transition zone of the Gulf of Cadiz

2020 ◽  
Vol 236 ◽  
pp. 106653 ◽  
Author(s):  
A. Sierra ◽  
D. Jiménez-López ◽  
T. Ortega ◽  
M.C. Fernández-Puga ◽  
A. Delgado-Huertas ◽  
...  
Keyword(s):  
Continental Shelf ◽  
Transition Zone ◽  
Gulf Of Cadiz ◽  
Gulf Of Cádiz ◽  
Methane Dynamics
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