Sökning: "temporal changes"

Visar resultat 1 - 5 av 483 avhandlingar innehållade orden temporal changes.

  1. 1. Modelling calving and sliding of Svalbard outlet glaciers Spatio-temporal changes and interactions

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Dorothée Vallot; Rickard Pettersson; Veijo Pohjola; Ken Mattsson; Tómas Jóhannesson; [2017]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; cryospheric science; glacier modelling; time-lapse imagery; undercutting; sliding inversion; discrete particle model; calving model; subglacial hydrology; sliding law; automatic detection method; calving events size and frequency; ocean interaction; melt water runoff; ice dynamics; ice flow model; Geovetenskap med inriktning mot naturgeografi; Earth Science with specialization in Physical Geography;

    Sammanfattning : Future sea level rise associated to global warming is one of the greatest societal and environmental challenges of tomorrow. A large part of the contribution comes from glaciers and ice sheets discharging ice and meltwater into the ocean and the recent worldwide increase is worrying. LÄS MER

  2. 2. Radar Measurements of Temporal Variation in a Boreal Forest

    Detta är en avhandling från Gothenburg : Chalmers tekniska högskola

    Författare :Albert Monteith; [2018]
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; remote sensing; temporal variation; tomography; antenna array; temporal coherence; Synthetic aperture radar SAR ;

    Sammanfattning : Synthetic aperture radar (SAR) on a satellite platform is a suitable technique for all-weather global monitoring of forest parameters such as biomass. This is important for increasing the accuracy of the global terrestrial carbon flux, the largest uncertainty in our current understanding of the Earth’s carbon cycle. LÄS MER

  3. 3. A Purkinje cell Timing Mechanism. On the Physical Basis of a Temporal Duration Memory

    Detta är en avhandling från Associative Learning

    Författare :Fredrik Johansson; [2015]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cerebellum; Purkinje cell; Timing; Temporal; Memory; Eyeblink conditioning; mGluR7; Kir3; GIRK;

    Sammanfattning : The standard view of neural signaling is that a neuron can influence its target cell by exciting or inhibiting it. Learning is thought to involve strengthening or weakening synaptic connections. For most behaviors, the brain must learn to produce precisely timed activity patterns. LÄS MER

  4. 4. Peakflow response of stream networks implications of physical descriptions of streams and temporal change

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Anna Åkesson; Anders Wörman; Alberto Viglione; [2015]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Streamflow routing; peakflow predictions; parameterization; hydrological response; stage-dependency; flooded cross-sections; stream networks; backwater effects; temporal change; land use change; Byggvetenskap; Civil and Architectural Engineering;

    Sammanfattning : Through distributed stream network routing, it has quantitatively been shown that the relationship between flow travel time and discharge varies strongly nonlinearly with stream stage and with catchment-specific properties.Physically derived distributions of water travel times through a stream network were successfully used to parameterise the streamflow response function of a compartmental hydrological model. LÄS MER

  5. 5. Temporalitet och social ordning

    Detta är en avhandling från Linköping : Linköpings universitet

    Författare :Anna-Liisa Närvänen; [1994]
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Biographical scheme; career; care work; organizational time; scope of action; socialization; social memoty; sociology of time; temporal order; temporal orientation; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Sammanfattning : The primary aim of the thesis is to develop a theoretical frame of reference concerning the significance of temporality for social order, how it is created, maintained and how it can be changed in interaction. The theoretical frame of reference is developed gradually and is considered as heuristic. Emphasis is placed on temporal orientation, i.e. LÄS MER