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  • GEOMAR Catalogue / E-Books
  • Journals
  • Articles  (10)
  • Data
  • OceanRep
  • Open Access-Papers  (10)
  • Alfred Wegener Institute for Polar and Marine Research  (7)
  • Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung  (1)
  • Dessau-Roßlau : Umweltbundesamt  (1)
  • Copernicus Publications (EGU)
  • Frontiers
  • GEOMAR
  • GFZ German Research Centre for Geosciences
  • 2015-2019  (10)
  • 2015  (10)
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  • GEOMAR Catalogue / E-Books
  • Journals
  • Articles  (10)
  • Data
  • OceanRep
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  • 2015-2019  (10)
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  • 1
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    Antarctic Specific Features of the Greenhouse Effect : A Radiative Analysis Using Measurements and Models (2015)
    Alfred Wegener Institute for Polar and Marine Research
    In:  EPIC3Berichte zur Polar- und Meeresforschung = Reports on polar and marine research, Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 692, 94 p., ISSN: 1866-3192
    Details
    Publication Date: 2018-09-12
    Description: CO2 is the strongest anthropogenic forcing agent for climate change since pre-industrial times. Like other greenhouse gases, CO2 absorbs terrestrial surface radiation and causes emission from the atmosphere to space. As the surface is generally warmer than the atmosphere, the total long-wave emission to space is commonly less than the surface emission. However, this does not hold true for the high elevated areas of central Antarctica. For this region, it is shown that the greenhouse effect of CO2 is around zero or even negative. Moreover, for central Antarctica an increase in CO2 concentration leads to an increased long-wave energy loss to space, which cools the earth-atmosphere system. These unique findings for central Antarctica are in contrast to the well known general warming effect of increasing CO2. The work contributes to explain the non-warming of central Antarctica since 1957.
    Repository Name: EPIC Alfred Wegener Institut
    Type: "Berichte zur Polar- und Meeresforschung" , notRev
    Format: application/pdf
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    PAPER (OA)
  • 2
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    Annual Report 2014 - Facts and Figures (2015)
    Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung
    In:  EPIC3Communications and Media Relations, Bremerhaven, Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, 17 p.
    Details
    Publication Date: 2016-06-14
    Repository Name: EPIC Alfred Wegener Institut
    Type: Outreach , notRev
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  • 3
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    The Expedition PS86 of the Research Vessel POLARSTERN to the Arctic Ocean in 2014 (2015)
    Alfred Wegener Institute for Polar and Marine Research
    In:  EPIC3Berichte zur Polar- und Meeresforschung = Reports on polar and marine research, Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 685, 133 p., ISSN: 1866-3192
    Details
    Publication Date: 2018-09-12
    Repository Name: EPIC Alfred Wegener Institut
    Type: "Berichte zur Polar- und Meeresforschung" , notRev
    Format: application/pdf
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  • 4
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    The Expedition PS85 of the Research Vessel POLARSTERN to the Fram Strait in 2014 (2015)
    Alfred Wegener Institute for Polar and Marine Research
    In:  EPIC3Berichte zur Polar- und Meeresforschung = Reports on polar and marine research, Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 687, 137 p., ISSN: 1866-3192
    Details
    Publication Date: 2021-10-19
    Repository Name: EPIC Alfred Wegener Institut
    Type: "Berichte zur Polar- und Meeresforschung" , notRev
    Format: application/pdf
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  • 5
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    Soil organic matter characteristics in surficial permafrost sediments on Herschel Island, Yukon Territory, Canada (2015)
    GFZ German Research Centre for Geosciences
    In:  EPIC3GeoBerlin2015 - Dynamic Earth from Alfred Wegener to today and beyond. Annual Meeting of DGGV and DMG, Berlin, Germany, 2015-10-04-2015-10-07Berlin, GFZ German Research Centre for Geosciences
    Details
    Publication Date: 2015-10-13
    Description: Recent mobilisation of soil organic matter (SOM) in permafrost of the northern high latitudes is thought to have a significant impact on the carbon balance in the atmosphere. However, the environmental processes which influence SOM accumulation and remobilisation still need to be investigated more accurately. This study investigates the quantity and quality of SOM on Herschel Island in the western Canadian Arctic in relation to various landscape characteristics. To reach this goal, soil moisture, total organic carbon (TOC) and total nitrogen (TN) contents, stable carbon isotopes (∂¹³C) and TOC/TN ratios (C/N) were determined on 128 samples from twelve sediment cores reaching up to 250 cm depth. Drilling locations were chosen based on morphology, vegetation and soil properties and supported by satellite imagery and air photos. Seasonal thaw depths (active layer depths) correlate with ground disturbance and vegetation cover and lie between 20 and 100 cm. Well-preserved SOM is accumulated in the active layer and subjacent ice-rich permafrost of wet polygonal tundra. Uplands, hummocky tussock tundra and alluvial fans cover more than 50 % of the island and show heterogeneous SOM storage characteristics with considerable TOC contents being limited to the active layer. Disturbed areas with slope gradients greater than 6° show strong SOM degradation with low TOC contents throughout the active layer and permafrost strata. Linear regression and principal component analysis (PCA) shows that a decreasing SOM content is driven by increasing ground disturbance and reduced vegetation cover. Improved drainage decreases the preservation of SOM in the active layer. Future deepening of the active layer because of increasing temperatures and ground disturbance will remobilise SOM stored in ice-rich permafrost. This might increase carbon dioxide and methane emissions from permafrost landscapes.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
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  • 6
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    Expedition Programme PS94 (2015)
    Alfred Wegener Institute for Polar and Marine Research
    In:  EPIC3Expeditionsprogramm Polarstern, Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, PS94, 50 p.
    Details
    Publication Date: 2015-07-15
    Repository Name: EPIC Alfred Wegener Institut
    Type: Expedition program , notRev
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  • 7
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    Expedition Programme PS97 (2015)
    Alfred Wegener Institute for Polar and Marine Research
    In:  EPIC3Expeditionsprogramm Polarstern, Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 39 p.
    Details
    Publication Date: 2015-10-26
    Repository Name: EPIC Alfred Wegener Institut
    Type: Expedition program , notRev
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  • 8
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    Expedition Programme PS92 (2015)
    Alfred Wegener Institute for Polar and Marine Research
    In:  EPIC3Expeditionsprogramm Polarstern, Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 47 p.
    Details
    Publication Date: 2015-06-14
    Repository Name: EPIC Alfred Wegener Institut
    Type: Expedition program , notRev
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  • 9
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    Expedition Programme PS96 (2015)
    Alfred Wegener Institute for Polar and Marine Research
    In:  EPIC3Expeditionsprogramm Polarstern, Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 40 p.
    Details
    Publication Date: 2017-11-15
    Repository Name: EPIC Alfred Wegener Institut
    Type: Expedition program , notRev
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  • 10
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    Kartierung des anthropogenen Lagers in Deutschland zur Optimierung der Sekundärrohstoffwirtschaft (2015)
    Dessau-Roßlau : Umweltbundesamt
    Details
    Publication Date: 2022-02-18
    Description: Deutschland hat ein enormes Vermögen in Form von Bauwerken, Infrastrukturen und sonstigen langlebigen Gütern angehäuft. Hierin befindet sich ein wertvolles Sekundärrohstoffreservoir - ein anthropogenes Materiallager. Es ist als Kapitalstock der Zukunft zu begreifen, den es systematisch zu bewirtschaften gilt. In der überwiegend Input-dominierten Ressourceneffizienzdiskussion findet dieser Kapitalstock bislang nur wenig Beachtung. Eine Ursache hierfür ist unzureichendes Wissen über die Größe und Zusammensetzung dieses Materiallagers sowie über dessen Veränderungsdynamik. Das Vorhaben sollte dazu beitragen, die Wissensbasis diesbezüglich deutlich zu erweitern. Mit den Ergebnissen des Projektes liegt nun ein differenziertes Bild über Materialflüsse und Materialbestände vor, die in langlebigen Gütern in Deutschland gebunden sind und von diesen ausgelöst werden. Neben umfangreichen Daten wurde ein Konzept vorgelegt, das Grundlagen zum Aufbau eines langfristigen Monitorings des anthropogenen Lagers durch eine kontinuierliche Fortschreibung von Bestandsveränderungen liefert.
    Keywords: ddc:600
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: German
    Type: report , doc-type:report
    Format: application/pdf
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