GLORIA

GEOMAR Library Ocean Research Information Access

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
Document type
Keywords
Publisher
Years
  • 1
    facet.materialart.
    Unknown
    Corrigendum: Acidification of East Siberian Arctic Shelf waters through addition of freshwater and terrestrial carbon (2016)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2016-06-02
    Description: Nature Geoscience 9, 470 (2016). doi:10.1038/ngeo2726 Author: Igor Semiletov, Irina Pipko, Örjan Gustafsson, Leif G. Anderson, Valentin Sergienko, Svetlana Pugach, Oleg Dudarev, Alexander Charkin, Alexander Gukov, Lisa Bröder, August Andersson, Eduard Spivak & Natalia Shakhova
    Print ISSN: 1752-0894
    Electronic ISSN: 1752-0908
    Topics: Geosciences
    Published by Nature Publishing Group (NPG)
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 2
    facet.materialart.
    Unknown
    Radium Isotopes across the Arctic Ocean show Time Scales of Water Mass Ventilation and Increasing Shelf Inputs (2018)
    AGU (American Geophysical Union) | Wiley
    Details
    Publication Date: 2023-05-04
    Description: The first full transarctic section of 228Ra in surface waters measured during GEOTRACES cruises PS94 and HLY1502 (2015) shows a consistent distribution with maximum activities in the Transpolar Drift. Activities in the central Arctic have increased from 2007 through 2011 to 2015. The increased 228Ra input is attributed to stronger wave action on shelves resulting from a longer ice‐free season. A concomitant decrease in the 228Th/228Ra ratio likely results from more rapid transit of surface waters depleted in 228Th by scavenging over the shelf. The 228Ra activities observed in intermediate waters (〈 1500m) in the Amundsen Basin are explained by ventilation with shelf water on a time scale of about 15‐18 years, in good agreement with estimates based on SF6 and 129I/236U. The 228Th excess below the mixed layer up to 1500m depth can complement 234Th and 210Po as tracers of export production, after correction for the inherent excess resulting from the similarity of 228Ra and 228Th decay times. We show with a Th/Ra profile model that the 228Th/228Ra ratio below 1500m is inappropriate for this purpose because it is a delicate balance between horizontal supply of 228Ra and vertical flux of particulate 228Th. The accumulation of 226Ra in the deep Makarov Basin is not associated with an accumulation of Ba and can therefore be attributed to supply from decay of 230Th in the bottom sediment. We estimate a ventilation time of 480 years for the deep Makarov‐Canada Basin, in good agreement with previous estimates using other tracers.
    Type: Article , PeerReviewed
    Format: text
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 3
    facet.materialart.
    Unknown
    Acidification of East Siberian Arctic Shelf waters through addition of freshwater and terrestrial carbon (2016)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2016-04-30
    Description: Nature Geoscience 9, 361 (2016). doi:10.1038/ngeo2695 Authors: Igor Semiletov, Irina Pipko, Örjan Gustafsson, Leif G. Anderson, Valentin Sergienko, Svetlana Pugach, Oleg Dudarev, Alexander Charkin, Alexander Gukov, Lisa Bröder, August Andersson, Eduard Spivak & Natalia Shakhova Ocean acidification affects marine ecosystems and carbon cycling, and is considered a direct effect of anthropogenic carbon dioxide uptake from the atmosphere. Accumulation of atmospheric CO2 in ocean surface waters is predicted to make the ocean twice as acidic by the end of this century. The Arctic Ocean is particularly sensitive to ocean acidification because more CO2 can dissolve in cold water. Here we present observations of the chemical and physical characteristics of East Siberian Arctic Shelf waters from 1999, 2000–2005, 2008 and 2011, and find extreme aragonite undersaturation that reflects acidity levels in excess of those projected in this region for 2100. Dissolved inorganic carbon isotopic data and Markov chain Monte Carlo simulations of water sources using salinity and δ18O data suggest that the persistent acidification is driven by the degradation of terrestrial organic matter and discharge of Arctic river water with elevated CO2 concentrations, rather than by uptake of atmospheric CO2. We suggest that East Siberian Arctic Shelf waters may become more acidic if thawing permafrost leads to enhanced terrestrial organic carbon inputs and if freshwater additions continue to increase, which may affect their efficiency as a source of CO2.
    Print ISSN: 1752-0894
    Electronic ISSN: 1752-0908
    Topics: Geosciences
    Published by Nature Publishing Group (NPG)
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 4
    facet.materialart.
    Unknown
    Addendum: Acidification of East Siberian Arctic Shelf waters through addition of freshwater and terrestrial carbon (2016)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2016-09-02
    Description: Nature Geoscience 9, 728 (2016). doi:10.1038/ngeo2799 Author: Igor Semiletov, Irina Pipko, Örjan Gustafsson, Leif G. Anderson, Valentin Sergienko, Svetlana Pugach, Oleg Dudarev, Alexander Charkin, Alexander Gukov, Lisa Bröder, August Andersson, Eduard Spivak & Natalia Shakhova
    Print ISSN: 1752-0894
    Electronic ISSN: 1752-0908
    Topics: Geosciences
    Published by Nature Publishing Group (NPG)
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 5
    facet.materialart.
    Unknown
    Radium isotopes and 228Th in surface water samples collected on POLARSTERN expedition PS78 (2021)
    PANGAEA
    Details
    Publication Date: 2023-02-12
    Description: 228Ra is strongly enriched in shelf waters and its half-life (5.8 years) is well suited to study the fate of shelf-derived water in the central Arctic. During PS78 (TRANSARC I) we studied the distribution of 228Ra in surface waters of the central Arctic to investigate how this 228Ra signal is transported in the Transpolar Drift. Water from the ships' seawater intake (Sta 196, 205) or from a submersible pump lowered to 10m depth on hydrographic stations (from station 209 onwards) was filtered and passed over MnO2-coated cartridges to absorb Radium and Thorium. Short-lived 224Ra, as analog for the total concentration of its parent 228Th, was determined on board with RaDeCC counting. In the lab, the cartridges were leached and long-lived Radium isotopes were measured by gamma spectroscopy.
    Keywords: Arctic; Arctic Ocean; ARK-XXVI/3; DATE/TIME; Depth, bathymetric; DEPTH, water; Event label; Fraction; Gamma spectroscopy; GPUMP; Laptev Sea; LATITUDE; LONGITUDE; Polarstern; PS78/196-3; PS78/205; PS78/209-5; PS78/212-4; PS78/218-6; PS78/221; PS78/222-6; PS78/224-2; PS78/227-4; PS78/230-6; PS78/232-2; PS78/233-2; PS78/234-2; PS78/235-7; PS78/236-2; PS78/237-2; PS78/239-6; PS78/241-2; PS78/242-3; PS78/243-2; PS78/244-2; PS78/245-6; PS78/246-2; PS78/247-2; PS78/248-3; PS78/249-2; PS78/250-6; PS78/251-2; PS78/252-2; PS78/253-2; PS78/257-2; PS78/259-3; PS78/271-2; PS78/272-4; PS78/273; PS78/274-2; PS78/276-5; PS78/278-2; PS78/280-5; PS78/283-2; PS78/285-5; PS78 TransArc; PUMP; RaDeCC; Radium; Radium-224; Radium-224, standard deviation; Radium-226; Radium-226, standard deviation; Radium-228; Radium-228, standard deviation; Salinity; Ships non-toxic pump; Station label; Temperature, water, potential; Thorium; TPD; Water pump; δ18O, water
    Type: Dataset
    Format: text/tab-separated-values, 460 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 6
    facet.materialart.
    Unknown
    Water, bottom deposits, and macrobenthos in the south part of the East Siberian Sea in September 2003 (2005)
    PANGAEA
    In:  Supplement to: Gukov, Aleksander Yu; Dudarev, Oleg V; Semiletov, Igor P; Charkin, Alexander N; Gorshkova, Ya S (2005): Distribution of macrobenthos biomass and bottom biocoenoses in the southern East Siberian Sea. Translated from Okeanologiya, 2005, 45(6), 889-896, Oceanology, 45(6), 741-748
    Details
    Publication Date: 2023-09-23
    Description: Macrobenthos biomass and bottom biocoenoses were studied in the sublittoral zone of the southern East Siberian Sea. The macrobenthos is characterized by relatively high abundance (from 30 to 2680 #/m**2), biomass (from 0.25 to 578.8 g/m**2), and diversity (83 species in total). Lateral distribution of macrobenthos biomass correlates with a substrate type and salinity and is substantially higher in areas washed by the Arctic water mass than in estuaries with mixed fresh and Arctic waters and shows a tendency to decreasing in the convergence zone of different water masses. The highest macrobenthos biomass is observed in cores of water masses in the Long Strait area and in the eastern part of the sea.
    Keywords: Archive of Ocean Data; ARCOD; East Siberian Sea; Grab; GRAB; IK2003-9-1; IK2003-9-10; IK2003-9-11; IK2003-9-12; IK2003-9-13; IK2003-9-14; IK2003-9-15; IK2003-9-16; IK2003-9-17; IK2003-9-18; IK2003-9-19; IK2003-9-2; IK2003-9-20; IK2003-9-21; IK2003-9-22; IK2003-9-23; IK2003-9-24; IK2003-9-25; IK2003-9-26; IK2003-9-27; IK2003-9-28; IK2003-9-29; IK2003-9-3; IK2003-9-30; IK2003-9-31; IK2003-9-32; IK2003-9-33; IK2003-9-34; IK2003-9-35; IK2003-9-36; IK2003-9-37; IK2003-9-38; IK2003-9-39; IK2003-9-4; IK2003-9-40; IK2003-9-41; IK2003-9-42; IK2003-9-43; IK2003-9-44; IK2003-9-5; IK2003-9-6; IK2003-9-7; IK2003-9-8; IK2003-9-9
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 7
    facet.materialart.
    Unknown
    (Table) Carbon, nitrogen and n-alkane content and isotopic composition of bottom sediments obtained in the East Siberian Sea (2008)
    PANGAEA
    In:  Supplement to: Vetrov, Alexander A; Semiletov, Igor P; Dudarev, Oleg V; Peresypkin, Valery I; Charkin, Alexander N (2008): Composition and genesis of the organic matter in the bottom sediments of the East Siberian Sea. Geochemistry International, 46(2), 156-167, https://doi.org/10.1134/S0016702908020055
    Details
    Publication Date: 2023-09-23
    Description: The chemical composition of organic matter (Corg, Norg, d13C, d1SN, and n-alkanes) was studied in the top layer of bottom sediments of the East Siberian Sea. Possible ways were proposed to estimate the amount of the terrigenous component in their organic matter (OM). The fraction of terrigenous OM estimated by the combined use of genetic indicators varied from 15% in the eastern part of the sea, near the Long Strait, to 95% in the estuaries of the Indigirka and Kolyma rivers, averaging 62% over the sea area.
    Keywords: Archive of Ocean Data; ARCOD; Carbon, organic, total; Carbon/Nitrogen ratio; Carbon Preference Index, n-Alkanes; Continuous Flow Isotope Ratio Mass Spectrometry (CF/IRMS); DEPTH, sediment/rock; East Siberian Sea; Elevation of event; Event label; Gas chromatography; i-C19/C17 ratio; i-C19/i-C20 ratio; i-C20/C18 ratio; IK04-102; IK04-106; IK04-112; IK04-25; IK04-30; IK04-34; IK04-38; IK04-40; IK04-44; IK04-46; IK04-49; IK04-51; IK04-55; IK04-60; IK04-62; IK04-64; IK04-66; IK04-68; IK04-72; IK04-MT04; Ivan Kireev-2004; Ivan Kireyev; Latitude of event; Longitude of event; n-Alkane, total per unit sediment mass; Nitrogen, total; Sediment type; Station label; Sum(C10-C22)/sum(C23-C40) n-alkanes ratio; Sum even numbered n-alkanes; Sum n-alkanes C10-C17; Sum n-alkanes C10-C22; Sum n-alkanes C18-C22; Sum n-alkanes C20-C24; Sum n-alkanes C23-C35; Sum n-alkanes C23-C40; Sum odd numbered n-alkanes; van Veen Grab; VGRAB; Water content, dry mass; δ13C; δ15N
    Type: Dataset
    Format: text/tab-separated-values, 457 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 8
    facet.materialart.
    Unknown
    (Table 1a) Water parameters in the south part of the East Siberian Sea in September 2003 (2005)
    PANGAEA
    Details
    Publication Date: 2023-09-23
    Keywords: Archive of Ocean Data; ARCOD; CTD, Neil Brown; Depth, bottom/max; Depth, top/min; DEPTH, water; East Siberian Sea; Elevation of event; Event label; Grab; GRAB; IK2003-9-1; IK2003-9-10; IK2003-9-11; IK2003-9-12; IK2003-9-13; IK2003-9-14; IK2003-9-15; IK2003-9-16; IK2003-9-17; IK2003-9-18; IK2003-9-19; IK2003-9-2; IK2003-9-20; IK2003-9-21; IK2003-9-22; IK2003-9-23; IK2003-9-24; IK2003-9-25; IK2003-9-26; IK2003-9-27; IK2003-9-28; IK2003-9-29; IK2003-9-3; IK2003-9-30; IK2003-9-31; IK2003-9-32; IK2003-9-33; IK2003-9-34; IK2003-9-35; IK2003-9-36; IK2003-9-37; IK2003-9-38; IK2003-9-39; IK2003-9-4; IK2003-9-40; IK2003-9-41; IK2003-9-42; IK2003-9-43; IK2003-9-44; IK2003-9-5; IK2003-9-6; IK2003-9-7; IK2003-9-8; IK2003-9-9; Latitude of event; Longitude of event; Oxygen; Salinity; Temperature, water
    Type: Dataset
    Format: text/tab-separated-values, 220 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 9
    facet.materialart.
    Unknown
    (Table 2) Abundance and biomass of macrobenthos in the south part of the East Siberian Sea in September 2003 (2005)
    PANGAEA
    Details
    Publication Date: 2023-09-23
    Keywords: Archive of Ocean Data; ARCOD; Benthic biomass, wet weight; Benthos; Benthos, biomass, wet mass; Counting; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; East Siberian Sea; Elevation of event; Event label; Grab; GRAB; IK2003-9-1; IK2003-9-10; IK2003-9-11; IK2003-9-12; IK2003-9-13; IK2003-9-14; IK2003-9-15; IK2003-9-16; IK2003-9-17; IK2003-9-18; IK2003-9-19; IK2003-9-2; IK2003-9-20; IK2003-9-21; IK2003-9-22; IK2003-9-23; IK2003-9-24; IK2003-9-25; IK2003-9-26; IK2003-9-27; IK2003-9-28; IK2003-9-29; IK2003-9-3; IK2003-9-30; IK2003-9-31; IK2003-9-32; IK2003-9-33; IK2003-9-34; IK2003-9-35; IK2003-9-36; IK2003-9-37; IK2003-9-38; IK2003-9-39; IK2003-9-4; IK2003-9-40; IK2003-9-41; IK2003-9-42; IK2003-9-43; IK2003-9-44; IK2003-9-5; IK2003-9-6; IK2003-9-7; IK2003-9-8; IK2003-9-9; Latitude of event; Longitude of event; Species
    Type: Dataset
    Format: text/tab-separated-values, 220 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 10
    facet.materialart.
    Unknown
    (Table 1b) Bottom deposits in the south part of the East Siberian Sea (2005)
    PANGAEA
    Details
    Publication Date: 2023-09-23
    Keywords: Archive of Ocean Data; ARCOD; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; East Siberian Sea; Elevation of event; Event label; Grab; GRAB; IK2003-9-1; IK2003-9-10; IK2003-9-11; IK2003-9-12; IK2003-9-13; IK2003-9-14; IK2003-9-15; IK2003-9-16; IK2003-9-17; IK2003-9-18; IK2003-9-19; IK2003-9-2; IK2003-9-20; IK2003-9-21; IK2003-9-22; IK2003-9-23; IK2003-9-24; IK2003-9-25; IK2003-9-26; IK2003-9-27; IK2003-9-28; IK2003-9-29; IK2003-9-3; IK2003-9-30; IK2003-9-31; IK2003-9-32; IK2003-9-33; IK2003-9-34; IK2003-9-35; IK2003-9-36; IK2003-9-37; IK2003-9-38; IK2003-9-39; IK2003-9-4; IK2003-9-40; IK2003-9-41; IK2003-9-42; IK2003-9-43; IK2003-9-44; IK2003-9-5; IK2003-9-6; IK2003-9-7; IK2003-9-8; IK2003-9-9; Latitude of event; Longitude of event; Sediment type
    Type: Dataset
    Format: text/tab-separated-values, 132 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...