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  • 1
    Buch
    Buch
    Snow accumulation on Ekströmisen, Antarctica, 1980 - 1996 : = Untersuchungen zur Schnee-Akkumulation auf dem Ekströmisen, Antarktis, 1980 - 1996 (1999)
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Details Verfügbarkeit
    Schlagwort(e): Ekström Ice Shelf ; Schnee ; Akkumulation ; Geschichte ; Ekström Ice Shelf ; Schnee ; Akkumulation ; Geschichte 1980-1996 ; Schneehöhe ; Antarktis
    Materialart: Buch
    Seiten: 137 S. , graph. Darst., Kt.
    Serie: Berichte zur Polarforschung 313
    URL: http://www.gbv.de/dms/bs/toc/271157488.pdf
    URL: http://www.gbv.de/dms/bs/toc/271157488.pdf
    DDC: 551.57/9989
    RVK:
    RY 20075
    Sprache: Englisch
    Anmerkung: Literaturverz. S. 27 - 29 , Intermediärsprache: Deutsch
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Book reviews (1995)
    Springer
    Theoretical and applied climatology 51 (1995), S. 177-181 
    Details
    ISSN: 1434-4483
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Geologie und Paläontologie , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00867444
    Standort Signatur Einschränkungen Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 3
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    Stable isotopes of precipitation at Concordia Station, East Antarctica, 2007-2014 (2021)
    PANGAEA
    Details
    Publikationsdatum: 2023-01-13
    Schlagwort(e): DATE/TIME; Deuterium excess; Dome C; DomeC_PrecPREREC; Dome C, Antarctica; Infrared spectrometer Picarro L2130, L2140; Water sample, precipitation; WSP; δ18O, water
    Materialart: Dataset
    Format: text/tab-separated-values, 1618 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
  • 4
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    Accumulation of snow from stake array at Neumayer Station, Antarctica
    PANGAEA
    Details
    Publikationsdatum: 2023-05-15
    Schlagwort(e): Accumulation of snow; AWI_Glac; DATE/TIME; Date/time end; Dronning Maud Land, Antarctica; Glaciology @ AWI; Neumayer_based; NEUMAYER III; NM02A92_00; RULER; Ruler stick; Stake; STAKE
    Materialart: Dataset
    Format: text/tab-separated-values, 926 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
  • 5
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    Accumulation of snow from stake array south at Neumayer Station, Antarctica
    PANGAEA
    Details
    Publikationsdatum: 2023-05-15
    Schlagwort(e): Accumulation of snow; AWI_Glac; DATE/TIME; Date/time end; Dronning Maud Land, Antarctica; Glaciology @ AWI; Neumayer_based; NEUMAYER III; NM03A90_00; RULER; Ruler stick; Stake; STAKE
    Materialart: Dataset
    Format: text/tab-separated-values, 280 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
  • 6
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    Comparison of accumulation rates and stable isotope ratios
    PANGAEA
    In:  Supplement to: Schlosser, Elisabeth; Oerter, Hans (2002): Shallow firn cores from Neumayer, Ekströmisen, Antarctica: a comparison of accumulation rates and stable-isotope ratios. Annals of Glaciology, 35, 91-96, https://doi.org/10.3189/172756402781816915
    Details
    Publikationsdatum: 2023-06-27
    Beschreibung: Since 1979/80, glaciological studies have been carried out at Ekströmisen, Antarctica, including accumulation-stake measurements, snow-pit and shallow-firn-core studies. Snowstratigraphy, chemical properties and stable-isotope ratios (d18O) were investigated. This study focuses on three cores taken between 1982 and 1998. The 1998 core was dated using dielectric profiling, d18O profiles and stake measurements. Accumulation rates showhigh interannual and spatial variability due to the extreme wind influence. No significant trend was found for the last 50 years; during the first half of the 20th century, accumulation decreased. The high spatial and interannual variability, however, means that trends must be interpreted with care. In spite of the highly irregular accumulation distribution, stable-isotope ratios show little spatial variability. The mean annual d18O values of cores B04 and FB0198 agree fairly well for the time period 1955-82 covered by both cores. d18O values have increased during most of the 20th century; since the late 1980s a decrease is observed. This change is not related to air temperature, since mean annual air temperatures at Neumayer show no significant trend over the last two decades.
    Schlagwort(e): AWI_Glac; B04; Dronning Maud Land, Antarctica; EPICA_DML3; FB0189; FB9801; FIRN; Firn auger; Glaciology @ AWI; ICEDRILL; Ice drill; Neumayer_based; NEUMAYER III; Neumayer Station (WMO89002); NM01C82_04; NM02A92_00; NM02C89_01; NM03A90_00; NM03C98_01; Stake; STAKE
    Materialart: Dataset
    Format: application/zip, 8 datasets
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
  • 7
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    Major ions in Fimbul Ice Shelf, Antarctica (2018)
    PANGAEA
    In:  Supplement to: Vega, Carmen Paulina; Isaksson, Elisabeth; Schlosser, Elisabeth; Divine, Dmitry V; Martma, Tõnu; Mulvaney, Robert; Eichler, Anja; Schwikowski-Gigar, Margit (2016): Surface mass balance and water stable isotopes derived from firn cores on three ice rises, Fimbul Ice Shelf, Antarctica. The Cryosphere, 10(6), 2763-2777, https://doi.org/10.5194/tc-10-2763-2016
    Details
    Publikationsdatum: 2023-06-26
    Beschreibung: Major ions were analysed in firn/ice cores located at Fimbul Ice Shelf (FIS), Dronning Maud Land – DML, Antarctica. FIS is the largest ice shelf in the Haakon VII Sea, with an extent of approximately 36 500 km2. Three shallow firn cores (about 20 m deep) were retrieved in different ice-rises, Kupol Ciolkovskogo (KC), Kupol Moskovskij (KM), and Blåskimen Island (BI), while a 100 m long core (S100) was drilled near the FIS edge. These sites are distributed over the entire FIS area so that they provide a variety of elevation (50–400 m a.s.l.) and distance (3– 42 km) to the sea. Sea-salt species (mainly Na+ and Cl−) generally dominate the precipitation chemistry in the study region. We associate a significant six-fold increase in median sea-salt concentrations, observed in the S100 core after the 1950s, to an enhanced exposure of the 100 site to primary sea-salt aerosol due to a shorter distance from the S100 site to the ice front, and to enhanced sea-salt aerosol production from blowing salty snow over sea ice, most likely related to the calving of Trolltunga occurred during the 1960s. This increase in sea-salt concentrations is synchronous with a shift in non-sea-salt sulfate (nssSO42−) toward negative values, suggesting a possible contribution of fractionated aerosol to the sea-salt load in the S100 core most likely originating from salty snow found on sea ice. In contrast, there is no evidence of a significant contribution of fractionated sea-salt to the ice-rises sites, where the signal would be most likely masked by the large inputs of biogenic sulfate estimated for these sites. In summary, these results suggest that the S100 core contains a sea-salt record dominated by the proximity of the site to the ocean, and processes of sea ice formation in the neighbouring waters. In contrast, the ice-rises firn cores register a larger-scale signal of atmospheric flow conditions and a less efficient transport of sea-salt aerosols to these sites. These findings are a contribution to the understanding of the mechanisms behind sea-salt aerosol production, transport and deposition at coastal Antarctic sites, and the improvement of the current Antarctic sea ice reconstructions based on sea-salt chemical proxies obtained from ice cores.
    Materialart: Dataset
    Format: application/zip, 4 datasets
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
  • 8
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    Major ions in Fimbul ice core FIS_KC (2018)
    PANGAEA
    Details
    Publikationsdatum: 2023-06-26
    Schlagwort(e): Age; Calcium; Chloride; Depth, bottom/max; DEPTH, ice/snow; Depth, top/min; Fimbul Ice Shelf, Antarctica; FIS_KC; ICEDRILL; Ice drill; Magnesium; Methane sulfonic acid; Nitrate; Potassium; Sodium; Sulfate
    Materialart: Dataset
    Format: text/tab-separated-values, 3773 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
  • 9
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    Isotope values of fresh snow samples and daily temperature from Neumayer station in the period 1981-2000 (2003)
    PANGAEA
    In:  Supplement to: Schlosser, Elisabeth; Reijmer, Carleen H; Oerter, Hans; Graf, Wolfgang (2004): The influence of origin of precipitation on the d18O-T relationship at Neumayer Station, Ekströmisen, Antarctica. Annals of Glaciology, 39, 41-48, https://doi.org/10.3189/172756404781814276
    Details
    Publikationsdatum: 2023-05-15
    Beschreibung: The relationship between d18O and air temperature at Neumayer station, Ekströmisen, Antarctica, was investigated using fresh-snow samples from the time period 1981-2000. A trajectory model that calculated 5 day-backward trajectories was used to study the influence of different synoptic weather situations and thus of different moisture sources on this correlation. Generally a high correlation between air temperature and d18O was found, but the quality of the d18O-T relationship varied with the different trajectory classes. Additionally, the sea-ice coverage on the travel path of the moist air was considered. The amount of open ocean water underneath the trajectory has a large influence on the d18O-T relationship. For trajectories that lead completely above open water, no significant correlation between d18O and T was found, because mixing with air masses containing additionally evaporated water vapour from the ocean influences the isotope ratio of precipitation. A very high correlation, however, was found for transports over the completely ice-covered Weddell Sea.
    Schlagwort(e): AWI_Glac; Calculated; DATE/TIME; Deuterium excess; Dronning Maud Land, Antarctica; Glaciology @ AWI; Neumayer; Neumayer_based; NEUMAYER III; Research station; RS; Temperature, air; WMO89002; δ18O, water; δ Deuterium
    Materialart: Dataset
    Format: text/tab-separated-values, 1342 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
  • 10
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    Continuous surface water vapour isotope monitoring at Neumayer Station III (201702-201901) (2021)
    PANGAEA
    Details
    Publikationsdatum: 2023-05-15
    Beschreibung: This dataset presents the first fully continuous monitoring of water vapour isotopic composition at Neumayer Station III, Antarctica, for two years, from February 2017 to January 2019. In January 2017, a PICARRO L2140-i cavity ring-down spectroscopy analyser was installed in a laboratory room at Neumayer Station. The Picarro analyser runs continuously and measures the injected water vapour content and its isotopic composition approximately every two seconds. For our analyses, the data are reported as hourly mean values.
    Schlagwort(e): Antarctica; Cavity ring-down spectrometer, Picarro, L2140i; Continuous isotope monitoring; DATE/TIME; Deuterium excess; Deuterium excess, standard deviation; Dronning Maud Land, Antarctica; Georg von Neumayer; GVN; HEIGHT above ground; Monitoring station; MONS; Neumayer_based; NEUMAYER III; Number of observations; Paleoclimate; water stable isotopes; water vapour; Water vapour mixing ratio; Water vapour mixing ratio, error; δ18O, water; δ18O, water, standard deviation; δ Deuterium, water vapour; δ Deuterium, water vapour, standard deviation
    Materialart: Dataset
    Format: text/tab-separated-values, 164944 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
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