Particulate organic carbon (POC) analysis
Dynamics of particulate organic carbon flux in a global ocean model
... Fig. 6. Annual cycle of regional averages of estimated values of α (a), λ (b), f (c), sea surface temperature (d), the ratio of vertically integrated NPP by diatoms to total NPP (e), total NPP (f), and the ratio of dust ...
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Variation pattern of particulate organic carbon and nitrogen in oceans and inland waters
... the analysis of drivers that influence POC, PON and POC / PON distribution have biogeochemical ...global carbon and nitrogen cycles and the indeterminacy of the relationship between carbon and ...
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Global ocean particulate organic carbon flux merged with satellite parameters
... authors’ analysis, where POC flux is re- trieved based on 234 Th activity in the water column account- ing for the ratio of POC to 234 Th concentration (Buesseler and Boyd, ...
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Evaluating Optical Proxies of Particulate Organic Carbon across the Surface Atlantic Ocean
... latter analysis, we highlight that the application of consistent methodologies to measure POC and bio-optical variables is needed to accurately predict POC from POC-IOPs ...
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Eddy-driven subduction exports particulate organic carbon from the spring bloom
... of particulate organic carbon (POC) to depth (19, ...pressure. Analysis was performed on 774 glider profiles (to 1000 m) obtained over 25 days starting (at yearday 120; yearday 1 is 1 January ...
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Satellite observations of seasonal and regional variability of particulate organic carbon concentration in the Barents Sea
... This could be associated with less ef ficient mixing and more stable water masses in this polar province. It is generally expected that global climate change can slow the production of dense water masses due to less ...
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Slow sinking particulate organic carbon in the Atlantic Ocean: magnitude, flux, and potential controls
... model analysis suggests that the biological processes driving the transfer of particles from fast- to slow-sinking pools need to be more robustly modeled to capture the contribution of SS POC to upper mesopelagic ...
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Particulate Organic Carbon Fluxes Along Upwelling-Dominated Continental Margins: Rates and Mechanisms
... of particulate organic carbon (POC) flux at three continental margin locations, Santa Barbara Basin, Cariaco Basin, and Guaymas Basin, marked by seasonal upwelling and high primary ...of ...
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Water column distribution and carbon isotopic signal of cholesterol, brassicasterol and particulate organic carbon in the Atlantic sector of the Southern Ocean
... and analysis POC concentrations and δ 13 C POC were analyzed via elemen- tal analyzer – isotope ratio mass spectrometer ...inorganic carbon (carbonates) was removed by exposing the filters to concentrated ...
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Late summer particulate organic carbon export and twilight zone remineralisation in the Atlantic sector of the Southern Ocean
... counting, particulate samples (QMA and Ag filters) were processed for POC measurement by elemen- tal analyser – isotope ratio mass spectrometer ...C analysis and coupled on-line via a Con-Flo III interface ...
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Change in land use induced significant losses of soil and particulate organic carbon
... the carbon inventory under multiple land use ...detailed analysis due to its geographical disposition and extent there by making it a major soil series where almost all representative land categories can be ...
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Organic and Elemental Carbon in Atmospheric Fine Particulate Matter in an Animal Agriculture Intensive Area in North Carolina: Estimation of Secondary Organic Carbon Concentrations
... fine particulate matter (PM 2.5 ). Study of organic carbon (OC) and elemental carbon (EC) in PM ...secondary organic carbon (SOC) forma- ...total carbon (TC) ratios at ...
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Variability of particulate organic carbon in inland waters observed from MODIS Aqua imagery
... our analysis shows that it is possible to develop appropriate algorithms to monitor key carbon components of complex inland waters using the spectral characteristics of the MODIS 250 and 500 m bands, taking ...
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Organic carbon flux and particulate organic matter composition in Arctic valley glaciers: examples from the Bayelva River and adjacent Kongsfjorden
... calibrated daily, we measured salinity/conductivity, tempera- ture, pH, and dissolved oxygen. For the marine/estuarine sta- tions, sampling was carried out from the R/V Tiesten or a rubber boat. When on the R/V Tiesten, ...
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Clues for a standardised thermal-optical protocol for the assessment of organic and elemental carbon within ambient air particulate matter
... As shown in Fig. 7a, the largest differences were obtained for samples containing the highest EC loadings and present- ing the highest contents of OC pyrolysed during analysis. These samples were actually ...
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Modelling biogeochemical processes in sediments from the north-western Adriatic Sea: response to enhanced particulate organic carbon fluxes
... size analysis was recently carried out in the area: sediments were classified as silty-sandy, with percentages of sand and mud respectively within the ranges of ...
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Modelling carbon overconsumption and the formation of extracellular particulate organic carbon
... total carbon assimilation by phytoplankton is the counterpart to observed gross primary production ...the carbon assimilation mi- nus respiration of phytoplankton and heterotrophs, and mi- nus ...
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Fluxes of particulate organic carbon in the East China Sea in summer
... 5 Conclusions This study involved direct measurement of POC fluxes and primary production in the ECS. It was found that some of POC fluxes were higher than primary production, suggesting that the lower PP might be ...
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Remineralization of particulate organic carbon in an ocean oxygen minimum zone
... of organic particles, keep atmospheric CO 2 lower than if the ocean was ...which organic particle flux declines by 63%, affected by particle respiration, fragmentation and sinking rates) controls the size of ...
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Aged riverine particulate organic carbon in four UK catchments
... within the present data, for the River Calder sub-catchment and Ribble B site (Table 3, Figure. 348 [r] ...
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