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Datasets of project "North Greenland Eemian Ice Drilling"

Mostrando recursos 1 - 16 de 16

  1. C-axis fabric analysis of ice samples collected from the NEEM ice core

    Eichler, Jan; Weikusat, Ilka; Kipfstuhl, Sepp
    The focus of this Diploma thesis is the development of a new approach for the analysis of crystal orientations in polar ice, based on digital image processing. The c-axes orientations are measured on thin ice sections using automated polarized light microscopy. The measured data are stored in form of high-resolution digital images which have been evaluated only manually so far. The automatic detection of grains and grain boundaries and the extraction of their orientation and shape parameters enable a statistical acquisition of the ice microstructure. The analysis of c-axes distributions, grain sizes, misorientations between adjacent grains, grain boundary orientations etc....

  2. Specific conductivity and hydrogen ions measured on two ice core (NEEM and NGRIP)

    Rasmussen, Sune O; Abbott, Peter M; Blunier, Thomas; Bourne, Mark; Brook, Edward J; Buchardt, Susanne L; Buizert, Christo; Chappellaz, Jérôme A; Clausen, Henrik Brink; Cook, Eliza; Dahl-Jensen, Dorthe; Davies, Siwan M; Guillevic, Myriam; Kipfstuhl, Sepp; Laepple, Thomas; Seierstad, Inger K; Severinghaus, Jeffrey P; Steffensen, Jørgen Peder; Stowasser, Christopher; Svensson, A; Vallelonga, Paul; Vinther, Bo M; Wilhelms, Frank; Winstrup, Mai
    A stratigraphy-based chronology for the North Greenland Eemian Ice Drilling (NEEM) ice core has been derived by transferring the annual layer counted Greenland Ice Core Chronology 2005 (GICC05) and its model extension (GICC05modelext) from the NGRIP core to the NEEM core using 787 match points of mainly volcanic origin identified in the electrical conductivity measurement (ECM) and dielectrical profiling (DEP) records. Tephra horizons found in both the NEEM and NGRIP ice cores are used to test the matching based on ECM and DEP and provide five additional horizons used for the timescale transfer. A thinning function reflecting the accumulated strain...

  3. Specific conductivity and hydrogen ions measured on two ice core (NEEM and NGRIP)

    Rasmussen, Sune O; Abbott, Peter M; Blunier, Thomas; Bourne, Mark; Brook, Edward J; Buchardt, Susanne L; Buizert, Christo; Chappellaz, Jérôme A; Clausen, Henrik Brink; Cook, Eliza; Dahl-Jensen, Dorthe; Davies, Siwan M; Guillevic, Myriam; Kipfstuhl, Sepp; Laepple, Thomas; Seierstad, Inger K; Severinghaus, Jeffrey P; Steffensen, Jørgen Peder; Stowasser, Christopher; Svensson, A; Vallelonga, Paul; Vinther, Bo M; Wilhelms, Frank; Winstrup, Mai
    A stratigraphy-based chronology for the North Greenland Eemian Ice Drilling (NEEM) ice core has been derived by transferring the annual layer counted Greenland Ice Core Chronology 2005 (GICC05) and its model extension (GICC05modelext) from the NGRIP core to the NEEM core using 787 match points of mainly volcanic origin identified in the electrical conductivity measurement (ECM) and dielectrical profiling (DEP) records. Tephra horizons found in both the NEEM and NGRIP ice cores are used to test the matching based on ECM and DEP and provide five additional horizons used for the timescale transfer. A thinning function reflecting the accumulated strain...

  4. Concentration of hydrogen ions measured with the Electrical Conductivity Method (ECM) on the NEEM ice core

    Rasmussen, Sune O; Abbott, Peter M; Blunier, Thomas; Bourne, Mark; Brook, Edward J; Buchardt, Susanne L; Buizert, Christo; Chappellaz, Jérôme A; Clausen, Henrik Brink; Cook, Eliza; Dahl-Jensen, Dorthe; Davies, Siwan M; Guillevic, Myriam; Kipfstuhl, Sepp; Laepple, Thomas; Seierstad, Inger K; Severinghaus, Jeffrey P; Steffensen, Jørgen Peder; Stowasser, Christopher; Svensson, A; Vallelonga, Paul; Vinther, Bo M; Wilhelms, Frank; Winstrup, Mai

  5. Concentration of hydrogen ions measured with the Electrical Conductivity Method (ECM) on the NEEM ice core

    Rasmussen, Sune O; Abbott, Peter M; Blunier, Thomas; Bourne, Mark; Brook, Edward J; Buchardt, Susanne L; Buizert, Christo; Chappellaz, Jérôme A; Clausen, Henrik Brink; Cook, Eliza; Dahl-Jensen, Dorthe; Davies, Siwan M; Guillevic, Myriam; Kipfstuhl, Sepp; Laepple, Thomas; Seierstad, Inger K; Severinghaus, Jeffrey P; Steffensen, Jørgen Peder; Stowasser, Christopher; Svensson, A; Vallelonga, Paul; Vinther, Bo M; Wilhelms, Frank; Winstrup, Mai

  6. Specific conductivity measured with the dielectric profiling (DEP) technique on the NEEM ice core

    Rasmussen, Sune O; Abbott, Peter M; Blunier, Thomas; Bourne, Mark; Brook, Edward J; Buchardt, Susanne L; Buizert, Christo; Chappellaz, Jérôme A; Clausen, Henrik Brink; Cook, Eliza; Dahl-Jensen, Dorthe; Davies, Siwan M; Guillevic, Myriam; Kipfstuhl, Sepp; Laepple, Thomas; Seierstad, Inger K; Severinghaus, Jeffrey P; Steffensen, Jørgen Peder; Stowasser, Christopher; Svensson, A; Vallelonga, Paul; Vinther, Bo M; Wilhelms, Frank; Winstrup, Mai

  7. Specific conductivity measured with the dielectric profiling (DEP) technique on the NEEM ice core

    Rasmussen, Sune O; Abbott, Peter M; Blunier, Thomas; Bourne, Mark; Brook, Edward J; Buchardt, Susanne L; Buizert, Christo; Chappellaz, Jérôme A; Clausen, Henrik Brink; Cook, Eliza; Dahl-Jensen, Dorthe; Davies, Siwan M; Guillevic, Myriam; Kipfstuhl, Sepp; Laepple, Thomas; Seierstad, Inger K; Severinghaus, Jeffrey P; Steffensen, Jørgen Peder; Stowasser, Christopher; Svensson, A; Vallelonga, Paul; Vinther, Bo M; Wilhelms, Frank; Winstrup, Mai

  8. Field work during NEEM ice core drilling campaign 2011-07-17 to 2011-08-17 with links to movies

    Kipfstuhl, Sepp

  9. Field work during NEEM ice core drilling campaign 2011-05-02 to 2011-06-11 with links to movies

    Kipfstuhl, Sepp

  10. Crystal c-axes (fabric) of ice core samples collected from the NEEM_08_S1 ice core

    Weikusat, Ilka; Kipfstuhl, Sepp

  11. Crystal c-axes (fabric) of ice core samples collected from the NEEM ice core

    Weikusat, Ilka; Kipfstuhl, Sepp

  12. Large area scan macroscope images from snow flakes at NEEM location

    Kipfstuhl, Sepp

  13. Large area scan macroscope images from the NEEM ice core

    Kipfstuhl, Sepp

  14. Large area scan macroscope images from the NEEM_09_S1 ice core

    Kipfstuhl, Josef

  15. Large area scan macroscope images from the NEEM_08_S1 ice core

    Kipfstuhl, Sepp

  16. Visual stratigraphy of the NEEM ice core with a linescanner

    Kipfstuhl, Sepp

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