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Absorption coefficient, 350 nm; Absorption coefficient, 443 nm; AWI Arctic Land Expedition; Biological index; Date/Time of event; DEPTH, water; Elevation of event; Event label; Fluorescence index; Fluorescence intensity, maximum, DOM; Humification index; Laptev Sea; Latitude of event; Lena2013; Longitude of event; MULT; Multiple investigations; Ratio; RU-Land_2013_Lena; Salinity; Specific ultraviolet absorbance normalized to DOC; Spectral slope of colored dissolved organic matter absorption; T1-1301; T1-1302; T1-1303; T1-1304; T1-1305; T1-1306; T1-1307; T1-3X-1; T4-1301; T4-1303; T4-1304; T4-1305; T5-1301; T5-1303; T5-1304; T6-1301; T6-1302; T6-1303; Temperature, water (1)
Acineta sp., biomass as carbon; Akashiwo sanguinea, biomass as carbon; Amphidinium cf. sphenoides, biomass as carbon; Amphidinium crassum, biomass as carbon; Askenasia regina, biomass as carbon; Askenasia sp., biomass as carbon; BAH; Balanion comatum, biomass as carbon, fractionated; Ceratium furca, biomass as carbon; Ceratium fusus, biomass as carbon; Ceratium horridum, biomass as carbon; Ceratium lineatum, biomass as carbon; Cyclotrichium sp., biomass as carbon; Cyrtostrombidium sp., biomass as carbon, fractionated; DATE/TIME; DEPTH, water; Didinium gargantua, biomass as carbon; Dinophysis sp., biomass as carbon; Diplopsalis cf. lenticula, biomass as carbon; Euplotes sp., biomass as carbon; Eutintinnus sp., biomass as carbon, fractionated; Favella ehrenbergii, biomass as carbon; German Bight, North Sea; Gonyaulax cf. spinifera, biomass as carbon; Gymnodinium chlorophorum, biomass as carbon; Gymnodinium sp., biomass as carbon, fractionated; Gyrodinium, biomass as carbon, fractionated; Gyrodinium calyptoglyphe, biomass as carbon; Gyrodinium sp., biomass as carbon, fractionated; HelgolandRoads_dinoflagellates_and_ciliates; Heterocapsa cf. niei, biomass as carbon; Heterocapsa cf. rotundata, biomass as carbon; Kabeltonne; Katodinium glaucum, biomass as carbon; Katodinium sp., biomass as carbon, fractionated; Laboea strobila, biomass as carbon; Leegaardiella cf. ovalis, biomass as carbon; Leegaardiella cf. sol, biomass as carbon; Lohmanniella oviformis, biomass as carbon; LTER_Benthos; Macrobenthic long-term series in the German Bight; Mesodinium pulex, biomass as carbon; Mesodinium sp., biomass as carbon, fractionated; Mesoporos sp., biomass as carbon; MON; Monitoring; Myrionecta rubra, biomass as carbon, fractionated; Nematodinium sp., biomass as carbon; Noctiluca scintillans, biomass as carbon; Peridiniella cf. danica, biomass as carbon; Polykrikos kofoidii, biomass as carbon; Prorocentrum balticum, biomass as carbon; Prorocentrum micans, biomass as carbon; Prorocentrum triestinum, biomass as carbon; Protoperidinium bipes, biomass as carbon; Protoperidinium brevipes, biomass as carbon; Protoperidinium cf. claudicans, biomass as carbon; Protoperidinium cf. conicum, biomass as carbon; Protoperidinium cf. divergens, biomass as carbon; Protoperidinium cf. leonis, biomass as carbon; Protoperidinium cf. minutum group, biomass as carbon; Protoperidinium cf. obtusum, biomass as carbon; Protoperidinium cf. pyriforme group, biomass as carbon; Protoperidinium cf. subinerme, biomass as carbon; Protoperidinium denticulatum, biomass as carbon; Protoperidinium depressum, biomass as carbon; Protoperidinium excentricum, biomass as carbon; Protoperidinium ovatum, biomass as carbon; Protoperidinium pellucidum, biomass as carbon; Protoperidinium pentagonum, biomass as carbon; Protoperidinium sp., biomass as carbon, fractionated; Protoperidinium thorianum, biomass as carbon; Pyrophacus horologium, biomass as carbon; Rimostrombidium sp., biomass as carbon; Salpingella sp., biomass as carbon; Scrippsiella, biomass as carbon; Scuticociliates, biomass as carbon, fractionated; Shelf Seas Systems Ecology @ AWI (former Biologische Anstalt Helgoland); Spathidium sp., biomass as carbon; Spatulodinium pseudonoctiluca, biomass as carbon; Stenosemella sp., biomass as carbon; Strobilidium cf. neptunii, biomass as carbon; Strobilidium cf. sphaericum, biomass as carbon; Strobilidium cf. spiralis, biomass as carbon; Strobilidium sp., biomass as carbon, fractionated; Strombidinopsis sp., biomass as carbon, fractionated; Strombidium, biomass as carbon, fractionated; Strombidium capitatum, biomass as carbon; Strombidium cf. acutum, biomass as carbon; Strombidium cf. conicum, biomass as carbon; Strombidium cf. emergens, biomass as carbon; Strombidium cf. epidemum, biomass as carbon, fractionated; Strombidium cf. lynni, biomass as carbon; Strombidium cf. tressum, biomass as carbon; Strombidium sp., biomass as carbon, fractionated; Tiarina fusus, biomass as carbon; Tintinnidium cf. balechi, biomass as carbon; Tintinnid sp., biomass as carbon, fractionated; Tintinnopsis cf. radix, biomass as carbon; Tintinnopsis sp., biomass as carbon; Tontonia gracillima, biomass as carbon; Torodinium robustum, biomass as carbon, fractionated; Vorticella sp., biomass as carbon; Warnowia sp., biomass as carbon (3)
Acineta sp.; Akashiwo sanguinea; Amphidinium cf. sphenoides; Amphidinium crassum; Askenasia regina; Askenasia sp.; BAH; Balanion comatum, fractionated; Ceratium furca; Ceratium fusus; Ceratium horridum; Ceratium lineatum; Cyclotrichium sp.; Cyrtostrombidium sp., fractionated; DATE/TIME; DEPTH, water; Didinium gargantua; Dinophysis sp.; Diplopsalis cf. lenticula; Euplotes sp.; Eutintinnus sp., fractionated; Favella ehrenbergii; German Bight, North Sea; Gonyaulax cf. spinifera; Gymnodinium chlorophorum; Gymnodinium sp., fractionated; Gyrodinium, fractionated; Gyrodinium calyptoglyphe; Gyrodinium sp., fractionated; HelgolandRoads_dinoflagellates_and_ciliates; Heterocapsa cf. niei; Heterocapsa cf. rotundata; Kabeltonne; Katodinium glaucum; Katodinium sp., fractionated; Laboea strobila; Leegaardiella cf. ovalis; Leegaardiella cf. sol; Lohmanniella oviformis; LTER_Benthos; Macrobenthic long-term series in the German Bight; Mesodinium pulex; Mesodinium sp., fractionated; Mesoporos sp.; MON; Monitoring; Myrionecta rubra, fractionated; Nematodinium sp.; Noctiluca scintillans; Peridiniella cf. danica; Polykrikos kofoidii; Prorocentrum balticum; Prorocentrum micans; Prorocentrum triestinum; Protoperidinium bipes; Protoperidinium brevipes; Protoperidinium cf. claudicans; Protoperidinium cf. conicum; Protoperidinium cf. divergens; Protoperidinium cf. leonis; Protoperidinium cf. minutum group; Protoperidinium cf. obtusum; Protoperidinium cf. pyriforme group; Protoperidinium cf. subinerme; Protoperidinium denticulatum; Protoperidinium depressum; Protoperidinium excentricum; Protoperidinium ovatum; Protoperidinium pellucidum; Protoperidinium pentagonum; Protoperidinium sp., fractionated; Protoperidinium thorianum; Pyrophacus horologium; Quantitative phytoplankton method (Utermöhl, 1958); Rimostrombidium sp.; Salpingella sp.; Scrippsiella; Scuticociliates, fractionated; Shelf Seas Systems Ecology @ AWI (former Biologische Anstalt Helgoland); Spathidium sp.; Spatulodinium pseudonoctiluca; Stenosemella sp.; Strobilidium cf. neptunii; Strobilidium cf. sphaericum; Strobilidium cf. spiralis; Strobilidium sp., fractionated; Strombidinopsis sp., fractionated; Strombidium, fractionated; Strombidium capitatum; Strombidium cf. acutum; Strombidium cf. conicum; Strombidium cf. emergens; Strombidium cf. epidemum, fractionated; Strombidium cf. lynni; Strombidium cf. tressum; Strombidium sp., fractionated; Tiarina fusus; Tintinnidium cf. balechi; Tintinnid sp., fractionated; Tintinnopsis cf. radix; Tintinnopsis sp.; Tontonia gracillima; Torodinium robustum, fractionated; Vorticella sp.; Warnowia sp. (3)
2; 4_2; Analyst; ANT-XXXII/1; Campaign of event; Celtic Sea; Coordinate uncertainty; Date/Time of event; DEPTH, water; Eider_I; Eider_II; Eider_III; Eider_IV; Eider_V; Elbe_I; Elbe_III; Elbe_IV; Elbe_V; Elbe_VI; Elbe_VIIa; Elbe_VIII; Event label; File format; File name; File size; German Bight, North Sea; Hand net; HE461; HE461/19-2; HE461/20-2; HE461/21-2; HE461/23-2; HE461/24-2; HE461/26-2; HE461/27-2; HE461/28-2; HE461/29-2; HE461/30-2; HE461/31-2; HE461/32-2; HE461/33-2; HE461/38-2; HE461/39-2; HE461/40-2; HE461/41-2; HE461/43-2; HE461/44-2; HE461/45-2; HE461/47-2; HE461/48-2; HE461/49-2; HE461/52-2; HE461/54-2; HE461/55-2; Heincke; HelgolandRoads_phytoplankton; HN; Image set; Kabeltonne; Latitude of event; Longitude of event; MON; Monitoring; North Sea; Optional event label; P8_II; P8_IV; P8_IX; P8_V; P8_VI; P8_VII; P8_VIII; P8_X; PLA; Plankton net; Polarstern; PS102; PS102_2-2; PS102_4-2; Registration number of species; South Atlantic Ocean; Species; Uniform resource locator/link to image; Uniform resource locator/link to reference (1)
AWI_Coast; AWI Arctic Land Expedition; Carbon, organic, dissolved; Coastal Ecology @ AWI; CTD; Date/Time of event; DEPTH, water; Elevation of event; Event label; High temperature catalytic oxidation; Laptev Sea; Latitude of event; Lena2013; Longitude of event; MULT; Multiple investigations; Nitrogen, total dissolved; Oxygen; pH; RU-Land_2013_Lena; Salinity; Sample ID; T1-1301; T1-1302; T1-1303; T1-1304; T1-1305; T1-1306; T1-1307; T1-3X-1; T1-3X-2; T3-1305; T4-1301; T4-1303; T4-1304; T4-1305; T5-1301; T5-1303; T5-1304; T6-1301; T6-1302; T6-1303; T6-1304; T6-1305; Temperature, water (1)

Unknown

Dissolved organic matter in the Lena River Delta Region, Siberia, Russia (2015)

Gonçalves-Araujo, Rafael ; Stedmon, Colin A ; Heim, Birgit ; [et al.]

PANGAEA

In: Supplement to: Gonçalves-Araujo, Rafael; Stedmon, Colin A; Heim, Birgit; Dubinenkov, Ivan; Kraberg, Alexandra Claudia; Moiseev, Denis; Bracher, Astrid (2015): From fresh to marine waters: characterization and fate of dissolved organic matter in the Lena River delta region, Siberia. Frontiers in Marine Science, 2(108), 13 pp, https://doi.org/10.3389/fmars.2015.00108

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Publication Date: 2023-04-12

Description: Connectivity between the terrestrial and marine environment in the Artic is changing as a result of climate change, influencing both freshwater budgets and the supply of carbon to the sea. This study characterizes the optical properties of dissolved organic matter (DOM) within the Lena Delta region and evaluates the behavior of DOM across the fresh water-marine gradient. Six fluorescent components (four humic-like; one marine humic-like; one protein-like) were identified by Parallel Factor Analysis (PARAFAC) with a clear dominance of allochthonous humic-like signals. Colored DOM (CDOM) and dissolved organic carbon (DOC) were highly correlated and had their distribution coupled with hydrographical conditions. Higher DOM concentration and degree of humification were associated with the low salinity waters of the Lena River. Values decreased towards the higher salinity Laptev Sea shelf waters. Results demonstrate different responses of DOM mixing in relation to the vertical structure of the water column, as reflecting the hydrographical dynamics in the region. Two mixing curves for DOM were apparent. In surface waters above the pycnocline there was a sharper decrease in DOM concentration in relation to salinity indicating removal. In the bottom water layer the DOM decrease within salinity was less. We propose there is a removal of DOM occurring primarily at the surface layer, which is likely driven by photodegradation and flocculation.

Keywords: Absorption coefficient, 350 nm; Absorption coefficient, 443 nm; AWI Arctic Land Expedition; Biological index; Date/Time of event; DEPTH, water; Elevation of event; Event label; Fluorescence index; Fluorescence intensity, maximum, DOM; Humification index; Laptev Sea; Latitude of event; Lena2013; Longitude of event; MULT; Multiple investigations; Ratio; RU-Land_2013_Lena; Salinity; Specific ultraviolet absorbance normalized to DOC; Spectral slope of colored dissolved organic matter absorption; T1-1301; T1-1302; T1-1303; T1-1304; T1-1305; T1-1306; T1-1307; T1-3X-1; T4-1301; T4-1303; T4-1304; T4-1305; T5-1301; T5-1303; T5-1304; T6-1301; T6-1302; T6-1303; Temperature, water

Type: Dataset

Format: text/tab-separated-values, 1851 data points

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