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Visar resultat 1 - 5 av 30 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Remote sensing of supra-glacial lakes on the west Greenland Ice Sheet

    Författare :A. Malin Johansson; Ian A. Brown; Peter Jansson; Johan Kleman; Andreas Ahlstrøm; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Supra-glacial lakes; Greenland Ice Sheet; Ice melting; Remote sensing; SAR; MODIS; Time-series analysis; Physical Geography; naturgeografi;

    Sammanfattning : The Greenland Ice Sheet is the largest ice sheet in the northern hemisphere. Ongoing melting of the ice sheet, resulting in increased mass loss relative to the longer term trend, has raised concerns about the stability of the ice sheet. Melt water generated at the surface is temporarily stored in supra-glacial lakes on the ice sheet. LÄS MER

  2. 2. Advanced Remote Sensing Precipitation Input for Improved Runoff Simulation : Local to regional scale modelling

    Författare :Seyyed Hasan Hosseini; Avdelningen för Teknisk vattenresurslära; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Hydrology; Precipitation; Rainfall; Satellite; Runoff; Streamflow; Rainfall-runoff modelling; X-band weather radar; GPM-IMERG; MODIS Terra;

    Sammanfattning : Accurate precipitation data are crucial for hydrological modelling and rainwater runoff management. Precipitation variability exists through a wide range of spatial and temporal scales and cannot be captured well using sparse rain gauge networks. LÄS MER

  3. 3. Model development for estimating carbon dioxide exchange in Nordic forests and peatlands with MODIS time series data

    Författare :Per Schubert; Institutionen för naturgeografi och ekosystemvetenskap; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The ongoing increase in atmospheric greenhouse gas concentrations causes an increase in the global mean air temperature. One important moderator of the atmospheric carbon dioxide (CO2) concentration is the gas exchange between the atmosphere and the biosphere; photosynthesis extracts and respiration releases CO2, resulting in a net exchange. LÄS MER

  4. 4. Disputatio politico-oeconomica de modis acqvirendi, quam ... præside, ... Henrico Ausio ... Liberalis exercitij gratia publico discursui submittit Andreas Krokius, Smol. in auditorio Gustaviano ad diem 7. Februarij, anno 1646

    Författare :Henrik Ausius; Anders Gyllenkrok; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Sammanfattning : .... LÄS MER

  5. 5. Disputatio juridica III. de rerum divisione, et acqvirendi earum dominii modis, quam ... sub tutamine ... Dn. Johannis Loccenii ... publicè defendere conabitur Troëlius H. Kååre Calm. Demorn. stipend. ad d. 1 Junij anno 1633

    Författare :Johannes Loccenius; Troëlius H. Kååre; Johannes Loccenius; Uppsala universitet; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER