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  • 1
    Call number: NBM 06.0084
    In: Open file report / Geological Survey of Canada
    Type of Medium: Non-book medium
    Pages: 1 Diskette : 9 cm + Endbenutzervereinbarung (1 S.)
    Edition: Digital data version
    Series Statement: Open file report / Geological Survey of Canada 2746
    Location: Reading room
    Branch Library: GFZ Library
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  • 2
    Publication Date: 2024-01-31
    Description: Abundances of the life stages of zooplankton taxa were calculated in the Arctic Ocean during the Hakon Mosby cruise to Fram Strait in 1987. Samples were collected in obliquely hauled nets with a 1m diameter mesh size: 118 µm). The water volume filtered was measured with a flowmeter attached in the net. Further details on sampling and analysis methodology can be found at Smith et al. (1988). The zooplankton samples were taken as part of the international Marginal Ice Zone Experiment (MIZEX) that was designed to study the atmospheric, oceanic, and ice interactions in the Fram Strait region of the Greenland Sea.
    Keywords: Amphipoda; Appendicularia; Calanoida, copepodites; Calanus finmarchicus, c1; Calanus finmarchicus, c2; Calanus finmarchicus, c3; Calanus finmarchicus, c4; Calanus finmarchicus, c5; Calanus finmarchicus, female; Calanus finmarchicus, male; Calanus glacialis, c1; Calanus glacialis, c2; Calanus glacialis, c3; Calanus glacialis, c4; Calanus glacialis, c5; Calanus glacialis, female; Calanus glacialis, male; Calanus hyperboreus, c1; Calanus hyperboreus, c2; Calanus hyperboreus, c3; Calanus hyperboreus, c4; Calanus hyperboreus, c5; Calanus hyperboreus, female; Calanus hyperboreus, male; Chaetognatha, juvenile; Comment; Copepoda; Copepoda, nauplii; DATE/TIME; Depth, bottom/max; Depth, top/min; DEPTH, water; Eukrohnia hamata; Euphausiacea; Euphausiacea, calyptopis; Euphausiacea, furcilia; Euphausiacea, juvenile; Euphausiacea, nauplii; Event label; Fram Strait; Håkon Mosby; Harpacticoida; HM87/3; HM87/3_001; HM87/3_002; HM87/3_003; HM87/3_004; HM87/3_005; HM87/3_006; HM87/3_007; HM87/3_008; HM87/3_009; HM87/3_010; HM87/3_011; HM87/3_012; HM87/3_013; HM87/3_014; HM87/3_015; HM87/3_016; HM87/3_017; HM87/3_018; HM87/3_020; HM87/3_021; HM87/3_022; HM87/3_023; HM87/3_024; HM87/3_025; HM87/3_026; HM87/3_027; HM87/3_029; HM87/3_031; HM87/3_063; HM87/3_064; HM87/3_065; HM87/3_066; HM87/3_067; HM87/3_068; HM87/3_070; HM87/3_NT; LATITUDE; LONGITUDE; Meroplankton; Metridia longa, c1-c3; Metridia longa, c4; Metridia longa, c5; Metridia longa, female; Metridia longa, male; Microcalanus spp.; Net; NET; Oithona spp.; Oncaeidae; Ostracoda; Parasagitta elegans; Pseudocalanus minutus, c4; Pseudocalanus minutus, c5; Pseudocalanus minutus, female; Pseudocalanus minutus, male; Pseudocalanus spp., c1-c3; Scolecithricella spp.; Zooplankton; Zooplankton, gelatinous; Zooplankton, other
    Type: Dataset
    Format: text/tab-separated-values, 3876 data points
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  • 3
    Publication Date: 2024-01-31
    Description: Abundances of the life stages of zooplankton taxa were calculated in the Arctic Ocean during Polarstern cruise ARK-II/2. Samples were collected in vertically hauled nets with a Multinet midi (Hydrobios, Kiel), which is equipped with five nets (mesh size: 200 µm). The water volume filtered was measured with a flowmeter attached in the net. Further details on sampling and analysis methodology can be found at Smith et al. (1986). The zooplankton samples were taken as part of the international Marginal Ice Zone Experiment (MIZEX) that was designed to study the atmospheric, oceanic, and ice interactions in the Fram Strait region of the Greenland Sea.
    Keywords: 182; 185; 188; 190; 198; 201; 203; 223; 224; 226; 229; 232; 239; 245; 253; 260; 264; 271; 272; 275; 277; 283; 291; 294; 296; 297; 298; 299; 300; 302; 304; 308; Amphipoda; Appendicularia; ARK-II/2; Calanoida, copepodites; Calanus finmarchicus, c1; Calanus finmarchicus, c2; Calanus finmarchicus, c3; Calanus finmarchicus, c4; Calanus finmarchicus, c5; Calanus finmarchicus, female; Calanus finmarchicus, male; Calanus glacialis, c1; Calanus glacialis, c2; Calanus glacialis, c3; Calanus glacialis, c4; Calanus glacialis, c5; Calanus glacialis, female; Calanus glacialis, male; Calanus hyperboreus, c1; Calanus hyperboreus, c2; Calanus hyperboreus, c3; Calanus hyperboreus, c4; Calanus hyperboreus, c5; Calanus hyperboreus, female; Calanus hyperboreus, male; Chaetognatha, adult; Chaetognatha, juvenile; Comment; Copepoda; Copepoda, nauplii; CTD/Rosette; CTD-RO; DATE/TIME; Depth, bottom/max; Depth, top/min; DEPTH, water; Eukrohnia hamata; Euphausiacea; Euphausiacea, calyptopis; Euphausiacea, furcilia; Euphausiacea, juvenile; Euphausiacea, nauplii; Event label; Fram Strait; Harpacticoida; Isopoda; LATITUDE; LONGITUDE; Meroplankton; Metridia longa, c1-c3; Metridia longa, c4; Metridia longa, c5; Metridia longa, female; Metridia longa, male; Metridia lucens, c5; Metridia lucens, female; Metridia lucens, male; Microcalanus spp.; MULT; Multiple investigations; Mysidacea; North Greenland Sea; Oithona spp.; Oncaeidae; Ostracoda; Parasagitta elegans; Polarstern; PS05; PS05/182; PS05/185; PS05/188; PS05/190; PS05/198; PS05/201; PS05/203; PS05/223; PS05/224; PS05/226; PS05/229; PS05/232; PS05/239; PS05/245; PS05/253; PS05/260; PS05/264; PS05/271; PS05/272; PS05/275; PS05/277; PS05/283; PS05/291; PS05/294; PS05/296; PS05/297; PS05/298; PS05/299; PS05/300; PS05/302; PS05/304; PS05/308; Pseudocalanus minutus, c4; Pseudocalanus minutus, c5; Pseudocalanus minutus, female; Pseudocalanus minutus, male; Pseudocalanus sp., female; Pseudocalanus spp., c1-c3; Scolecithricella spp.; Thysanoessa longicaudata; Zooplankton; Zooplankton, gelatinous; Zooplankton, other
    Type: Dataset
    Format: text/tab-separated-values, 15015 data points
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  • 4
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Inorganic chemistry 16 (1977), S. 1958-1961 
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 54 (1982), S. 1439-1441 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 715 (1994), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Polar research 10 (1991), S. 0 
    ISSN: 1751-8369
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geography , Geosciences
    Notes: The distribution and abundance of the euphausiids Thysanoessa raschi and Thysanoessa inermis in the shelf waters of the southeastern Bering Sea were investigated during spring and summer of 1980 and 1981. Experiments were conducted during the study to describe the reproduction, growth and development of these species. T. inermis was the dominant euphausiid species observed over the outer shelf region; it began spawning in early April while T. raschi dominated the euphausiids over the middle shelf and began spawning in mid or late May. The seasonal progression in spawning followed the seasonal development of temperature; however, spawning did not begin earlier in 1981 which was a warmer year than 1980. Average egg production of T. raschi ranged from 3.4% to 3.8% dry body weight of the female per day during the first three days after capture. Secondary production estimates for T. raschi females ranged from 4.2% to 5.2% dry body weight per day in 1980 and 5.9% to 6.0% dry body weight per day in 1981. A sharp decline in the abundance of adolescent and adult euphausiids over the middle shelf during the spring bloom period when food appeared to be abundant suggests that predation by diving birds, pollack. Tanner crabs, whales and seals effectively controls the euphausiid population.
    Type of Medium: Electronic Resource
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  • 8
    Publication Date: 2021-01-12
    Description: Permafrost warming has the potential to amplify global climate change, because when frozen sediments thaw it unlocks soil organic carbon. Yet to date, no globally consistent assessment of permafrost temperature change has been compiled. Here we use a global data set of permafrost temperature time series from the Global Terrestrial Network for Permafrost to evaluate temperature change across permafrost regions for the period since the International Polar Year (2007–2009). During the reference decade between 2007 and 2016, ground temperature near the depth of zero annual amplitude in the continuous permafrost zone increased by 0.39 ± 0.15 °C. Over the same period, discontinuous permafrost warmed by 0.20 ± 0.10 °C. Permafrost in mountains warmed by 0.19 ± 0.05 °C and in Antarctica by 0.37 ± 0.10 °C. Globally, permafrost temperature increased by 0.29 ± 0.12 °C. The observed trend follows the Arctic amplification of air temperature increase in the Northern Hemisphere. In the discontinuous zone, however, ground warming occurred due to increased snow thickness while air temperature remained statistically unchanged.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev , info:eu-repo/semantics/article
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  • 9
    Publication Date: 2020-11-15
    Description: Soils are warming as air temperatures rise across the Arctic and Boreal region concurrent with the expansion of tall-statured shrubs and trees in the tundra. Changes in vegetation structure and function are expected to alter soil thermal regimes, thereby modifying climate feedbacks related to permafrost thaw and carbon cycling. However, current understanding of vegetation impacts on soil temperature is limited to local or regional scales and lacks the generality necessary to predict soil warming and permafrost stability on a pan-Arctic scale. Here we synthesize shallow soil and air temperature observations with broad spatial and temporal coverage collected across 106 sites representing nine different vegetation types in the permafrost region. We showed ecosystems with tall-statured shrubs and trees (〉 40 cm) have warmer shallow soils than those with short-statured tundra vegetation when normalized to a constant air temperature. In tree and tall shrub vegetation types, cooler temperatures in the warm season do not lead to cooler mean annual soil temperature indicating that ground thermal regimes in the cold-season rather than the warm-season are most critical for predicting soil warming in ecosystems underlain by permafrost. Our results suggest that the expansion of tall shrubs and trees into tundra regions can amplify shallow soil warming, and could increase the potential for increased seasonal thaw depth and increase soil carbon cycling rates and lead to increased carbon dioxide loss and further permafrost thaw.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 10
    Publication Date: 2020-12-13
    Description: The Global Terrestrial Network for Permafrost (GTN-P) is the primary international programme concerned with sustained long-term monitoring of permafrost. GTN-P was developed in the 1990s by the International Permafrost Association (IPA) under the Global Terrestrial Observing System (GTOS) as part of the Global Climate Observing System (GCOS). The two major components of GTN-P (Essential Climate Variables) are: (a) long-term monitoring of the thermal state of permafrost in an extensive borehole network, the Thermal State of Permafrost - TSP; and (b) monitoring of the Active-layer thickness - ALT. Long-term monitoring of permafrost generates essential baseline information for the assessment of climate change impacts in polar and high mountain regions.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Miscellaneous , notRev
    Format: application/pdf
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