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  • 51.
    Johansson, Magnus
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Olvmo, M
    Development of granite sheet fractures in response to long-term morphotectonic evolution in SW Sweden2005Conference paper (Refereed)
    Abstract [en]

    Configuration of granite sheet fractures has been reconstructed for the island Ramsvik (c. 9 km²) at the Swedish west-coast. The reconstruction suggests that the sheeting once formed eight antiformal domes separated by valleys or basin-like depressions connected with a rhombic joint pattern. Today the domes are dissected and eroded into c.70 separate hills. Long-term landform development invol-ves Mesozoic deep weathering with subsequent stripping of saprolite and Quaternary glacial reshap-ing of ancient relief. Same type of sheet structures has developed through both 920 Ma granite and a 50-70 m wide Permian rhomb porphyry dyke, which constrain their oldest possible age. We suggest that this type of large scale sheet structures results from vertical unloading of rocks that formed at depth under high triaxial compression. Thick sequences of coarse clastic sediments in Triassic rift basins westwards indicate that unloading of Palaeozoic cover rocks occurred after uplift and erosion. The unloading released the high N-S crustal compression built up in the granite during the Variscan tectonic regime. Mesozoic differential weathering and stripping exposed the domical relief before renewed burial beneath cover rocks in connection with the Late Cretaceous transgression. It is un-certain when exhumation of the Mesozoic surface started, with a possible second weathering phase, but studies of sediment compaction offshore point at a Neogene uplift in the area

  • 52.
    Johansson, Magnus
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Olvmo, M.
    Lidmar-Bergström, K.
    Inherited landforms and glacial impact of different palaeosurfaces in southwest Sweden2001In: Geografiska Annaler, 83 A (1-2), Vol. 83 A, p. 67-89Article in journal (Refereed)
    Abstract [en]

    Landforms are used as analytical tools to separate inherited features from the glacial impact on Precambrian basement rocks in southwest Sweden. The study covers three different palaeosurfaces, the sub-Cambrian peneplain (relative relief 0-20 m) with the character of a pediplain, an uplifted and dissected part of the sub-Cambrian peneplain (r.r. 5-40 m) and an etchsurface (r.r. 20-135 m), presumably sub-Mesozoic. The surfaces were recently re-exposed, probably due to a Neogene upheaval with some pre-glacial reshaping. Strong structural control and no alignment with glacial erosional directions other than those coinciding with structures, are arguments for etch processes as a most important agent for relief differentiation. This is strengthened by the occurrence of saprolite residues and etchforms in protected positions.

    The glacial reshaping of the sub-Cambrian flat bedrock surfaces is negligible. The glacial impact becomes more evident in the uplifted and dissected parts of the peneplain and within the hilly sub-Mesozoic surface. The higher the initial relief the more effect of glacial erosion on individual hills, both on the abrading side with formation of roches moutonnées and on the plucking side. Detailed etchforms are preserved in protected positions in spite of erosion by a clearly wet-based ice. The magnitude of the Pleistocene glacial erosion is considerably less than the amplitude of the palaeorelief in the entire area.

    Landscapes of areal glacial scouring have been described as comprised of irregular depressions with intervening bosses scraped by ice and labelled knock and lochan topography, but we suggest that an etched bedrock surface is a prerequisite for this type of landscape to develop.

  • 53.
    Johansson, Magnus
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Olvmo, M.
    Söderström, M.
    Application of digital elevation and geological data in studies of morphotectonics and relief - a case study of the sub-Cambrian peneplain in SW Sweden1999In: Zeitschrift für Geomorphologie, Vol. 43, p. 505-520Article in journal (Refereed)
    Abstract [en]

    A 357 km2 wide area in south-western Sweden is examined regarding Tertiary morphotectonics and characteristic relief of the sub-Cambrian peneplain. The relief of the sub-Cambrian peneplain is studied in a geographical information system (GIS) and geostatistical modelling is applied to digital elevation and geological data. Linear trend surface analysis is used for the purpose of describing the morphotectonics of fragmented parts of the sub-Cambrian peneplain. The trend surface analysis requires digital information of outcrops, bedrock type, tectonic pattern and elevation data and it is described in the report how this information can be produced digitally. The analysis reveals that the sub-Cambrian peneplain is separated into fault bounded blocks, which are arranged in a stepwise manner with blocks leaning towards NNW, with an inclination in the range of 0.2-0.4 %.



    Spatial interpolation techniques, distance-weighted moving averages and triangulation, are used on regolith thickness data from wells, to describe the relief of the Precambrian bedrock surface below the Quaternary loose deposits in the immediate contact with Cambro-Silurian cover rocks. The resulting patterns from the interpolations of the Quaternary regolith thickness unveil a varied relief, different from the extremely flat Precambrian surface usually described near Cambro-Silurian cover rocks in southern Sweden.

  • 54. Jonasson, C.
    et al.
    Nyberg, Rolf
    Karlstad University, Faculty of Social and Life Sciences, Department of Geography and Tourism. Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    The rainstorm of August 1998 in the Abisko area, northern Sweden: preliminary report on observations of erosion and sediment transport1999In: Geografiska Annaler 81A (3), 1999Article in journal (Refereed)
  • 55. Jonasson, C.
    et al.
    Nyberg, Rolf
    Karlstad University, Faculty of Social and Life Sciences, Department of Geography and Tourism. Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Rapp, A.
    Dating of rapid mass movements in Scandinavia: talus rockfalls, large rockslides, debris flows and slush avalanches1997In: / [ed] Frenzel et al, 1997Conference paper (Refereed)
  • 56. Lindblad, K.E.M.
    et al.
    Nyberg, Rolf
    Karlstad University, Faculty of Social and Life Sciences, Department of Geography and Tourism. Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Molau, U.
    Generalization of heterogeneous alpine vegetation in air photo-based image classification, Latnjajaure catchment, northern Sweden2006In: Pirineos: Revista de Ecología de Montaña, ISSN 0373-2568, E-ISSN 1988-4281, Vol. 161, no 3a32Article in journal (Refereed)
    Abstract [en]

    Mapping alpine vegetation at a meso-scale (catchment level) using remote sensing presents difficulties due to a patchy distribution and heteregeneous spectral appearance of the plant cover. We discuss issues of generalization and accuracy assessment in this case study when using a digital CIR air photo for an automatic classification of the dominant plant communities. About 10 plant communities could be classified with acceptable accuracy where the chosen classification scheme determined the final outcome. If a high resolution pixel mosaic is generalized to units that match the positional accuracy of simple GPS this generalization may also influence the information content of the image

  • 57. Lundström, U.
    et al.
    Nyberg, Lars
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Danielsson, R.
    van Hees, P.A.W.
    Andersson, M.
    Forest soil acidification: Monitoring on the regional scale exemplified in Värmland, Sweden1998In: Ambio, 27(7):551-556Article in journal (Refereed)
  • 58. Lundström, U.S.
    et al.
    Bain, D.C.
    Taylor, A.F.S.
    van Hees, P.A.W.
    Geibe, Ch.E.
    Holmström, S.J.M.
    Melkerud, P.-A.
    Finlay, R.
    Jones, D.L.
    Nyberg, Lars
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Gustafsson, J.P.
    Riise, G.
    Tau Strand, L.
    Effects of acidification and its mitigation with lime and wood ash on forest soil processes in southern Sweden. A joint multidisciplinary study2003In: Water, Air and Soil Pollution: Focus, 3(4):167-188Article in journal (Refereed)
  • 59. Migon, P.
    et al.
    Johansson, Magnus
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Lithological and structural influence on the development of basin-and-hill landscape within basement complex in SW Sweden2004In: Zeitschrift Fur Geomorphologie N. F, Vol. 48:03, p. 305-322Article in journal (Refereed)
    Abstract [en]

    This study focuses on structural and lithological controls exerted on landscape development in the basement terrain along the NW coast of Sweden, reflected in morphometric characteristics of medium-size rock-cut basins derived from air photos analysis. In this area fracture patterns have been critical for landform development and the majority of basins has developed along fractures, or at their intersections, or are bounded by fractures. No significant quantitative differences exist between granite and gneiss bedrock, evidently because fracture patterns disregard lithological boundaries. Likewise, intra-lithological variability is best attributed to different patterns of fracturing in each test area. Reasons for the prominence of fracture control probably are sought in morphotectonic setting and limited time span for etching. Despite multiple glaciations, effects of glacial processes are minor at this scale of inquiry

  • 60.
    Nyberg, Lars
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Biosfärsområden ' från ett vattenperspektiv2003Report (Other academic)
  • 61.
    Nyberg, Lars
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Naturolyckor och klimatförändringar: En forskningsöversikt2005Report (Refereed)
  • 62.
    Nyberg, Lars
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Olyckors miljöeffekter2010Report (Other academic)
  • 63.
    Nyberg, Lars
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Olyckors miljöeffekter: En forskningsöversikt2005Report (Refereed)
  • 64.
    Nyberg, Lars
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Soil- and groundwater distribution, flowpaths and transit times in a small till catchment1995Doctoral thesis, monograph (Other academic)
  • 65.
    Nyberg, Lars
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Spatial variability of soil water content in the covered catchment at Gårdsjön, Sweden1996In: Hydrological Processes, 10:89-103Article in journal (Refereed)
  • 66.
    Nyberg, Lars
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Spatial variability of soil water content in the covered catchment at Gård-sjön, Sweden1996In: Hydrological Processes, 10:89-103Article in journal (Refereed)
  • 67.
    Nyberg, Lars
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Surhet och försurning - om kemiska förändringar i mark och vatten2004Chapter in book (Other academic)
  • 68.
    Nyberg, Lars
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Water flow path interactions with soil hydraulic properties in till soil at Gårdsjön, Sweden1995In: Journal of Hydrology, 170:255-275Article in journal (Refereed)
  • 69.
    Nyberg, Lars
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Water flow path interactions with soil hydraulic properties in till soil at Gårdsjön, Sweden1995In: Journal of Hydrology, 170:255-275Article in journal (Refereed)
  • 70.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Andersson, Jan-Olov
    Karlstad University, Faculty of Social and Life Sciences, Department of Biology.
    Mörth, Carl-Magnus
    Dept of Geology and Chemistry, Stockholm University.
    Malmström, Maria
    Karlstad University, Faculty of Social and Life Sciences.
    Influence of wetland restoration on hydrology and water chemistry in a Swedish boreal catchmentManuscript (preprint) (Other academic)
  • 71.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Bergman, E.
    Bladh, G.
    Vatten i skogslandskapet2004Chapter in book (Other academic)
  • 72.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Bergman, Eva
    Karlstad University, Faculty of Social and Life Sciences, Department of Biology.
    Bladh, Gabriel
    Karlstad University, Faculty of Social and Life Sciences, Department of Geography and Tourism. Karlstad University, Faculty of Social and Life Sciences, Centre for the Studies of Social Sciences Didactics.
    Vatten i skogslandskapet2004In: Inte bara träd – hållbart mångbruk av skogslandskapet / [ed] Olsson, Nyberg, Bladh och Månsson, Stockholm: Carlssons förlag , 2004Chapter in book (Other academic)
  • 73.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Bishop, K.
    Rodhe, A.
    Importance of hydrology in the reversal of acidification in till soils, Gårdsjön, Sweden1993In: Appl. Geochemistry, Suppl. Issue No. 2:61-66Article in journal (Refereed)
  • 74.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Bishop, K.
    Rodhe, A.
    Importance of hydrology in the reversal of aci-dification in till soils, Gårdsjön, Sweden1993In: Appl. Geochemistry, Suppl. Issue No. 2:61-66Article in journal (Refereed)
  • 75.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Blumenthal, Barbara
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Johansson, Magnus
    Karlstad University, Faculty of Social and Life Sciences, Department of Geography and Tourism. Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Influence of flood risk management measures on socio-economic and ecological vulnerabilities in a large water system - A case study of Lake Vänern and the Göta älv River, Sweden2009Conference paper (Refereed)
  • 76.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Blumenthal, Barbara
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Johansson, Magnus
    Karlstad University, Faculty of Social and Life Sciences, Department of Geography and Tourism. Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Learning lessons from natural disasters sectorial or holistic perspectives?2009Conference paper (Refereed)
  • 77.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Blumenthal, Barbara
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Johansson, Magnus
    Karlstad University, Faculty of Social and Life Sciences, Department of Geography and Tourism. Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Sustainability aspects of flood risk management - A case study of Lake Vänern and the Göta älv River, Sweden2010Conference paper (Refereed)
  • 78.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Evers, Mariele
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Andersson-Skold, Yvonne
    Johansson, Magnus
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Blumenthal, Barbara
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Sustainability Aspects of Flood Risk Management: Interrelations and Challenges2010In: SELECTED PAPERS FROM IDRC ON RISK REDUCTION AND DISASTER MANAGEMENT, HARBIN INST TECHNOLOGY, P R CHINA , 2010, Vol. 1, p. 101-107Conference paper (Refereed)
    Abstract [en]

    Aspects of sustainable development are crucial for Flood Risk Management (FRM). These aspects are relevant for the flood risk analysis, risk evaluation and risk-reduction. Two case studies are used to identify potential conflicts between different values: Lake Vanern and Gota alv River in Sweden and Elbe River in Germany. In both cases there are diverging interests of how to manage the systems, e.g. how to regulate water levels and use floodplains. The conclusion is that the relevant sustainability aspects must be identified, addressed and valued in the risk management process, especially for different risk-reducing measure options.

  • 79.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Evers, Mariele
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Dahlström, Margareta
    Karlstad University, Faculty of Social and Life Sciences, Department of Geography and Tourism.
    Pettersson, Andreas
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    How to reduce flood risks in Lake Vänern - A sustainability perspective2012Conference paper (Refereed)
  • 80.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Grahn, Tonje
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Blumenthal, Barbara
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Ekonomiska konsekvenser av kraftiga skyfall: tre fallstudier2010Report (Other academic)
  • 81.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Halldin, Sven
    Hjort, Klas
    Centre for Natural Disaster Science Interdisciplinary cooperation to predict, mitigate, and prevent natural disasters2010Conference paper (Refereed)
  • 82.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Ibsen, Hilde
    Karlstad University, Faculty of Social and Life Sciences, Department of Health and Environmental Sciences.
    Svensson, Eva
    Karlstad University, Faculty of Social and Life Sciences, Department of Health and Environmental Sciences.
    Klarälvdalen och en hållbar framtid2011In: Klarälven, Karlstad: Karlstad University Press, 2011, p. 145-147Chapter in book (Other academic)
  • 83.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Lundström, U.
    Danielsson, R.
    van Hees, P.
    Björk, E.
    Andersson, I.
    Holm, M.
    Bratt, A.
    Försurning av skogsmark i Östergötland1998Report (Refereed)
  • 84.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Lundström, U.
    Söderberg, U.
    Danielsson, R.
    van Hees, P.
    Does soil acidification affect spruce needle chemical composition and tree growth?2001In: Water, Air and Soil Pollution: Focus, 1(1/2):241-263Article in journal (Refereed)
  • 85.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Lundström, U.
    van Breemen, N.
    Bain, D.C.
    van Hees, P.A.W.
    Giesler, R.
    Gustafsson, J.P.
    Ilvesniemi, H.
    Karltun, E.
    Melkerud, P-A.
    Olsson, M.
    Riise, G.
    Wahlberg, O.
    Bergelin, A.
    Bishop, K.
    Finlay, R.
    Jongmans, T.
    Magnusson, T.
    Mannerkoski, H.
    Nordgren, A.
    Advances in understanding the podzolisation process resulting from a multidisciplinary study at three coniferous forest soils in the Nordic countries1999In: Geoderma, 94:335-353Article in journal (Refereed)
  • 86.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Lundström, U.
    van Hees, P-
    Andersson, M.
    Skogsmarkens kemi i Värmland - En jämförelse av ståndortskarteringen och Värmlandsundersökningen1998Report (Other academic)
  • 87.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Lundström, Ulla
    van Hees, Patrik
    Andersson, Madelen
    Skogsmarkens kemi i Värmland: En jämförelse av ståndortskarteringen och Värmlandsundersökningen1998Report (Other academic)
    Abstract [sv]

    Rapporten redovisar en jämförelse av två markkemiska undersökningar i Värmland, Värmlandsundersökningen på 180 platser 1994, och den nationella ståndortskarte-ringen på upp till 89 platser 1983-87.



    I jämförelsen har data för mark-pH, utbytbart förråd av katjoner och mineraljordens totalinnehåll av element tagits med. Jämförelsen påverkades av ett antal faktorer som skiljde sig åt i de båda undersökningarna, t ex att antalet provpunkter var olika, att provtagningen i ståndortskarteringen omfattade olika typer av jordmåner medan Värmlandsundersökningen endast omfattade podsolerade jordar och att de kemiska analyserna utfördes med delvis olika metoder.



    För mark-pH och de olika katjonerna i det utbytbara förrådet var såväl medelnivåerna som de regionala variationsmönstren olika för ståndortskarteringen och Värmlands-undersökningen. Skill-naden i nivå kan förklaras av att rikare jordar ingick i ståndorts-karteringen. Dessutom kan surt ned-fall under de ca tio år som skiljde undersökning-arna i tiden ha sänkt mark-pH och minskat det utbytbara förrådet av baskatjoner, även om det sura nedfallet minskat under perioden. Jämförelser av huvudelementen i mine-raljorden visade på relativt god överensstämmelse mellan ståndortskarteringen och Värmlandsundersökningen, såväl vad gäller medelnivå i länet och vad gäller den geo-grafiska variationen. För spårelementen i mineraljorden skilde medelnivåerna stort mellan ståndortskarteringen och Värmlandsundersökningen, troligen beroende på att provtagningsdjupen var olika

  • 88.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Mariele, Evers
    Timm R, Geißler
    Scott, Arthur
    Capacity building on integrated water management Approach and activities in the European Project Strategic Alliance of Water Management Actions (SAWA)2009Conference paper (Refereed)
  • 89.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Mariele, Evers
    Timm R, Geißler
    Scott, Arthur
    Capacity building on sustainable flood risk and water management - transnational and transdisciplinary activities in the Northsea region2009Conference paper (Refereed)
  • 90.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Olsson, G.A.
    Månsson, B.
    Bladh, G.
    Skogslandskap för hållbar utveckling2004Chapter in book (Other academic)
  • 91.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Ripemo, Tord
    Klarälvens vattenkvalitet2011In: Klarälven / [ed] Hilde Ibsen, Eva Svensson, Lars Nyberg, Karlstad: Karlstad University Press, 2011, p. 129-144Chapter in book (Other academic)
  • 92.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Rodhe, A.
    Bishop, K.
    Water transit times and flow paths from two line injections of 3H and 36Cl in a microcatchment at Gårdsjön, Sweden1999In: Hydrological Processes, 13:1557-1575Article in journal (Refereed)
  • 93.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Rodhe, A.
    Bishop, K.
    Water transit times and flow paths from two line injections of 3H and 36Cl in a microcatchment at Gårdsjön, Sweden1999In: Hydrological Processes, 13:1557-1575Article in journal (Refereed)
  • 94.
    Nyberg, Lars
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Stähli, M.
    Mellander, P.-E.
    Bishop, K.
    Soil frost effects on soil water and runoff dynamics along a boreal forest transect. 1. Field investigation2001In: Hydrological Processes, 15(6):909-926Article in journal (Refereed)
  • 95.
    Nyberg, Rolf
    Karlstad University, Faculty of Social and Life Sciences, Department of Geography and Tourism. Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Debris flows and slush avalanches in northern Swedish Lappland: Distribution and geomorphological significance1985Doctoral thesis, monograph (Other academic)
  • 96.
    Nyberg, Rolf
    Karlstad University, Faculty of Social and Life Sciences, Department of Geography and Tourism. Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Freeze-thaw activity and some of its geomorphic implications in the Abisko mountains, Swedish Lapland1993In: Permafrost and Periglacial Processes, Vol.4, No.1, 1993Article in journal (Refereed)
  • 97.
    Nyberg, Rolf
    Karlstad University, Faculty of Social and Life Sciences, Department of Geography and Tourism. Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Geographic Information Systems and Computer Cartography1996Report (Other academic)
  • 98.
    Nyberg, Rolf
    Karlstad University, Faculty of Social and Life Sciences, Department of Geography and Tourism. Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Geomorphic processes at snowpatch sites in the Abisko mountains, northern Sweden1991In: Zeitschrift fur Geomorphologie N.F. Bd 35, Heft 3Article in journal (Refereed)
  • 99.
    Nyberg, Rolf
    Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    GIS-tillämpningar inom översvämningshantering: en forskningsöversikt2010Report (Other academic)
    Abstract [sv]

    På grund av inträffade översvämningar under senare år har behovet av effektiva åtgärder vid förebyggande arbete och katastrofhantering av händelserna ökat. Geografiska informationssystem (GIS) används till att visualisera utbredning av översvämningar, till att analysera underlag för riskkartering och som beslutsstöd vid katastrofinsatser. I rapporten tas upp hur GIS använts i olika studier om översvämningsproblematik, både i Sverige och internationellt. Kort berörs även att GIS-teknik i ökande omfattning utnyttjas i webbaserade tjänster bl.a. för informationsförmedling och riskvarning om översvämningar. 

    En förutsättning för att tillförlitliga GIS-analyser av översvämningsrisk skall kunna göras är att översvämningsmodelleringen håller hög noggrannhet. Enligt flera studier kräver detta att detaljerade höjddata finns att tillgå. Sådana har på senare år börjat bli tillgängliga genom datainsamling via flygburen laserskanning. En ny höjdmodell med förbättrad noggrannhet är under uppbyggnad i Sverige och en liknande utveckling sker internationellt.

    Ett antal internationella exempel på metodstudier kring GIS-baserad uppskattning av konsekvenser av översvämningar beskrivs. Hittills har främst ekonomiska konsekvenser undersökts, och i mindre utsträckning miljömässiga, sociala och kulturella påföljder, vilket efterfrågas i EU:s översvämningsdirektiv. En metod som provats bl.a. i Tyskland är multikriterieanalys baserat på rasterdata i GIS, varvid geografisk variation i olika faktorer kan sammanvägas som kriterier på översvämningsrisk. Detta ger förbättrade möjligheter att inräkna även ekonomiskt svårmätbara konsekvenser i riskbedömningen.

  • 100.
    Nyberg, Rolf
    Karlstad University, Faculty of Social and Life Sciences, Department of Geography and Tourism. Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
    Observations of slushflows and their geomorphological effects in the Swedish mountain area1989In: Geografiska Annaler 71A(3-4)Article in journal (Refereed)
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