Search for dissertations about: "Abisko"

Showing result 1 - 5 of 23 swedish dissertations containing the word Abisko.

  1. 1. Diatoms as indicators of Holocene climate and environmental change in northern Sweden

    University dissertation from Umeå : Ekologi och geovetenskap

    Author : Christian Bigler; Ingemar Renberg; Roland Hall; N. John Anderson; [2001]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physical geography and sedimentology; diatoms; Holocene; paleolimnology; climate change; lake sediments; transfer functions; quantitative environmental reconstructions; northern Sweden; Abisko; Naturgeografi och sedimentologi; NATURAL SCIENCES Earth sciences Exogenous earth sciences Physical geography; NATURVETENSKAP Geovetenskap Exogen geovetenskap Naturgeografi; naturgeografi; Physical Geography;

    Abstract : The objective of the thesis was to explore the potential of diatoms (Bacillariophyceae) as indicators of Holocene climate and environmental change in northern Sweden (Abisko region, 68°21'N, 18°49'E). A modern surface-sediment calibration set including 100 lakes was developed and lake-water pH, sedimentary organic content (assessed by loss-on-ignition) and temperature were identified as most powerful environmental variables explaining the variance within the diatom assemblages. READ MORE

  2. 2. Holocene vegetation dynamics and climate changes in the Torneträsk area, northern Sweden

    University dissertation from Department of Quaternary Geology, Lund University

    Author : Lena Barnekow; [1999]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Paleobotanik; palynology; phylogeny; Palaeobotany; northern Sweden; Torneträsk; Abisko; lake-level; radiocarbon dating; forest history; Holocene; tree-line; climate; Vegetation; fylogeni; palynologi; Physical geography; geomorphology; pedology; cartography; climatology; Fysisk geografi; geomorfologi; marklära; kartografi; klimatologi;

    Abstract : The aim of this study was to reconstruct the Holocene vegetation history and the climate changes in a subarctic area. The results are based on pollen and macrofossil records from six lakes in the Torneträsk area. The lakes are situated at altitudes between 370 and 999 m a.s. READ MORE

  3. 3. Spatial and Temporal Variations of Solifluction and Related Environmental Parameters in the Abisko Mountains, Northern Sweden

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Hanna Ridefelt; Jan Boelhouwers; Antoni Lewkowicz; [2009]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; solifluction; movement rates; Abisko region; Geographical Information Systems; statistical modelling; geomorphic work; permafrost; NATURAL SCIENCES Earth sciences Exogenous earth sciences Physical geography; NATURVETENSKAP Geovetenskap Exogen geovetenskap Naturgeografi; naturgeografi; Physical Geography;

    Abstract : This thesis presents an assessment of the variation in solifluction occurrence, morphometry and movement rates in the Abisko region, northern Sweden. Variations in movement rates are analyzed both on a regional and local scale. READ MORE

  4. 4. Evapotranspiration and energy exchange of a mountain birch forest, Abisko, Sweden

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Magnus Ovhed; [1995]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE

  5. 5. Chromosome rearrangements do not prevent gene flow in the common shrew, Sorex araneus : Analysis of two chromosomal hybrid zones in Sweden

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Yolanda Narain; [1998]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Genetics; Genetik; MEDICINE Dermatology and venerology; clinical genetics; internal medicine Clinical genetics; MEDICIN Dermatologi och venerologi; klinisk genetik; invärtesmedicin Klinisk genetik; Genetics; genetik;

    Abstract : Two chromosomal hybrid zones of the common shrew, Sorex araneus, have been investigated: the Hällefors-Uppsala hybrid zone in central Sweden and the Abisko-Sidensjö hybrid zone in northern Sweden. The Hällefors (Hä) and Uppsala (Up) chromosome races consisted of biarmed autosomes only (2nA=18), and differed in the Robertsonian fusions of two arms, ko, pq, and kp, oq, respectively. READ MORE