[PDF] Top 20 Sedimentary and mineral dust sources of dissolved iron to the World Ocean
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Sedimentary and mineral dust sources of dissolved iron to the World Ocean
... ber of global-scale ocean biogeochemical models (Archer and Johnson, 1999; Moore 20 et ...understanding of iron cycling in the oceans, the result of numerous field ... Voir le document complet
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Sedimentary and mineral dust sources of dissolved iron to the world ocean
... Correspondence to: J. K. Moore (jkmoore@uci.edu) eral dust particles; 2) desorption of dissolved iron from sink- ing particles; and 3) an improved sedimentary source for ... Voir le document complet
27
Observations of dissolved iron concentrations in the World Ocean: implications and constraints for ocean biogeochemical models
... Discussion sources including the continental margins and shelf/coastal ...because the remaining subset of data is largely impacted by the mineral dust deposi- tion, ... Voir le document complet
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Dissolved iron and iron isotopes in the southeastern Pacific Ocean
... summary, the combined dissolved Fe and Fe isotope data of this study suggest that porewater sources and unique cases of Fe redox cycling over short temporal scales source ... Voir le document complet
25
Biomass burning as a source of dissolved iron to the open ocean?
... Given the above assumption, we expect that an increase of ...0.22 to 0.45 nM of dissolved iron in the entire mixed layer could have resulted from the deposition ... Voir le document complet
6
Sources, transport and deposition of iron in the global atmosphere
... source of Fe to the marine biota (Martin, 1990; Duce and Tindale, 1991; Johnson et ...Conway and John, 2014). Early studies of the ef- fects of Fe fertilization, ... Voir le document complet
25
Distal transport of dissolved hydrothermal iron in the deep South Pacific Ocean
... concentrations of the micronutrient iron in seawater are known to limit primary production and nitrogen fixation in large regions of the global ...important to ... Voir le document complet
9
Direct observations of the atmospheric processing of Asian mineral dust
... evolution of secondary species in Asian dust 10 The principal peak area ratios for four major secondary species, ammonium, chloride, nitrate, and sulphate are plotted in ...in the data ... Voir le document complet
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Direct observations of the atmospheric processing of Asian mineral dust
... range of internal mixing between nitrate and chloride in individual dust ...group of particles is found at the top sulphate vertex, in- dicating that these dust particles contain ... Voir le document complet
25
Effect of humidity on nitric acid uptake to mineral dust aerosol particles
... 10 The flow leaving the flow reactor was directly entering the parallel-plate denuder sys- ...tem. The latter captures the gaseous species HNO 3 , HONO, NO 2 on di fferent chem- ically ... Voir le document complet
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Simulation of the mineral dust content over Western Africa from the event to the annual scale with the CHIMERE-DUST model
... AODs and surface concentrations exhibit the same range of variations than the observed ...than the measurements for the year 2006. The seasonal cycle of the ... Voir le document complet
24
Modeling the mineralogy of atmospheric dust sources
... L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignemen[r] ... Voir le document complet
15
Ice nucleation by surrogates for atmospheric mineral dust and mineral dust/sulfate particles at cirrus temperatures
... for the atomizer (TSI Model 3076) consisted of ...mixtures of the dust parti- cles suspended (by stirring) in high purity ...water. The par- ticle stream was dried via passage ... Voir le document complet
19
Ice nucleation by surrogates for atmospheric mineral dust and mineral dust/sulfate particles at cirrus temperatures
... Measurements of the ice nucleating activity of selected sizes of the resuspended refer- ence Asian dust sample are shown in ...4 and Table 5. Water uptake measurements 10 ... Voir le document complet
47
Effect of humidity on nitric acid uptake to mineral dust aerosol particles
... used to monitor the concentra- tion of gaseous HNO 3 in a small side flow before entering the ...reactor. The trap consists of a quartz-fiber filter, soaked with a saturated ... Voir le document complet
15
Decoupling of iron and phosphate in the global ocean
... Forcing the model with LGM aeolian flux forcing fields results in a positive Fe* in the Southern Ocean surface waters, attributed to the increased aeolian input, as well [r] ... Voir le document complet
139
Modeling the atmospheric dust cycle: 2-Simulation of Saharan dust sources
... for the deposit and dissemination of sci- entific research documents, whether they are pub- lished or ...not. The documents may come from teaching and research institutions in France or ... Voir le document complet
19
Resupply of mesopelagic dissolved iron controlled by particulate iron composition
... Remineralization of upper ocean particles: Implications for iron biogeochemistry. Dust deposition: iron 295[r] ... Voir le document complet
39
Surface water dissolved aluminum and titanium: Tracers for specific time scales of dust deposition to the Atlantic?
... tracer to estimate the dust supply to the ocean, giving reasonable agreement to model based estimates of dust deposition [Han et ...Measures and Vink, ... Voir le document complet
7
Revisiting atmospheric dust export to the Southern Hemisphere ocean: Biogeochemical implications
... However, the main contamination source for aerosol sampling on a ship (in addition to regular activities on board research vessels) is smoke from the engine exhaust ...Knowing the low ... Voir le document complet
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