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Populärvetenskaplig sammanfattning: Rassepautasjtjåkka är ett litet bergsmassiv beläget i norra Lappland. I massivet återfinns fyra stora nischer strax under glaciationsgränsen. Dessa nischer har en gång blivit uteroderade av glaciärer, men idag återfinns endast perenna snölegor i området. Skillnaden mellan en glaciär och en perenn snölega är att en glaciär har intern rörelse. En tjocklek på cirkaSince the mid 1970s the general retreating trend for glacier in Scandinavian have ceased and some glaciers have even started to advance. This is due to a more maritime influence on the climate, which means increased precipitation in winter and lower summer temperature. A more maritime climate can be said to be favourable for glacier growth. Under such climate conditions is it possible that new gla

This Master's thesis examines segregation between Swedes and immigrants in school, and more specifically segregation between the two elementary schools Vikingaskolan and Tunaskolan in Lund. This case provides a particularly interesting puzzle, since Lund doesn?t have any pronounced immigrant districts, and was also recognized nationally as best municipality for its schools (2004). In this thes

The last decades have shown increased nitrogen leeching from soil to water recipients. This is in Sweden mainly due to over-manuring of agriculture land, effectivization of drainage systems and the declining extent of wetlands. The accumulated amount of nitrogen in water doesn’t only make it unsuitable for use by humans and cattle, but also decreases the biological diversity as well as negatively

Populärvetenskaplig sammanfattning: Under de senaste årtiondena har norra Ghana drabbats av missväxt i samband med torka vid ett flertal tillfällen. Jordbrukarna i området är beroende av den mängd nederbörd som faller under den enda regnperioden, mellan april och september. En avvikelse från den årliga medelnederbörden kan därför medföra en reducering eller fullständig kollaps av spannmålsproduktiNorthern Ghana experiences one dry season per year, but severe droughts may occur more infrequently. This is of concern to the local farmers of the Tamne River Basin (northeast Ghana) who depend on adequate rainfall amounts during the rainy season. Unfavourable precipitation amounts may lead to catastrophic consequences. It is therefore crucial to develop methods for predicting the distribution of

The relationship between field measurements of vegetation in a semi arid region and NDVI from the 1 km NOAA AVHRR was investigated within this study. The Hoanib catchment in the northwestern Namibia was chosen as study area. The field measurements were carried out during the month of February 1999. Different NDVI values and combinations of NDVI were used and it was found that the integrated NDVI u

Populärvetenskaplig sammanfattning: Vinderosion på jordbruksmark har länge varit ett välkänt faktum trots att någon utförligare undersökning om dess omfattning och skadeverkan inte tidigare genomförts. Mot bakgrund av detta har därför ett nordeuropeiskt projekt, WEELS (Wind Erosion on European Light Soils), dragits i gång som syftar till kartlägga vinderosionen på sandig jordbruksmark i norra EuroThis work presents the results of a combined field measurement and modeling study of the soil moisture and surface energy balance at Ilstorp near Sjöbo in central Scania. The focus of the study is to investigate the water content of the upper few centimeters of a soil profile. Relevant meteorological variables were measured at the study site during April to June 1999. The field data were used to c

Populärvetenskaplig sammanfattning: I Australien är intresset stort för kustprocesser, och en sådan process är masstransport av sand i kustnära områden. Utmed östra Australiens kust finns stora områden med sanddyner och de flesta stränder är sandstränder. I Queensland finns till och med mycket stora öar som består av sand. Den största av dessa öar heter Fraser Island. Många forskare tror att sand In SE Australia, sediments are moved northwards by longshore currents and deposited as barriers, dunes, and estuarine or inner shelf deposits. According to Roy & Thom (1981), the magnitude and complexity of the deposition morphology increase from south to north. Modelling by Cowell, Roy, and Jones (1995) shows that the steepness of the regional substrate is the primary influence on coastal mor

At the end of August 1999, the local government council of Malmö city decided that the area known as Kvarteret Bilen would be made available for the European Housing Exhibition 2001 (Bo01-mässan). Kvarteret Bilen extends over approximately 80 hectars and includes the western parts of the Western Harbour area (Västra hamnen) of Malmö. Kvarteret Bilen as a whole, but especially the western sections

En Multispectral Canopy Reflectance Modell (MCRM) av Kuusk (1995) har använts för att simulera reflektansen i ett sockerbetsbestånd. De simulerade reflektansvärdena visade på hög absorbans i VIS-området, jämfört med mätningar i fält, och höga reflektansvärden i NIR-området. En "vårmodell" utfördes, och jämfördes med originalsimuleringen. Denna gav mer korrekta reflektansvärden.The Multispectral Canopy Reflectance Model (MCRM) by Kuusk (1995) has been used to simulate the reflectance of a sugarbeet canopy. The simulated reflectance values show high absorptance in the VIS area, compared to field measurements, and high reflectance values in the NIR area. The errors may be due to overestimation of clorophyll content in the sugarbeet leaves and scattered light during field m

Arbetet är utfört åt skogsforskningsstationen Mógilsá som ligger strax norr om Reykjavik. Forskningen inom Mógilsá bedrivs inom delar av eller för hela Island med inriktning inom exempelvis dendrokronologi, proveniensförsök, och studier av insekter. Sedan 1900-talets början har inplantering av exotiska trädarter blivit allt vanligare och i en allt större skala. Syften med inplanteringen är bland aThis study was made in an attempt to give the forest research centre Mógilsá a produced tetratherm map and a better understanding of how topography and temperature influence the growth of two tree species. The digital tetratherm map model, covering the northern part of Iceland, was developed to investigate the correlation between tetratherm and the growth of Picea sitchensis and Larix (sukaczewii

Detta är ett examensarbete i tre delar. Del I behandlar GIS-implementation i Sri Lanka, i Del II visas GIS-applikationer rörande turism i Hambantota, ett av 25 distrikt i Sri Lanka. Del III anlyserar användning av GIS i socioekonomisk planering med utgångspunkt från fem doktorander i Sri Lanka. Arbetet utfördes huvudsakligen inom ramarna för ett Minor Field Study (MFS) finansierat av svenska Sida.During the summer of 1999, we participated in a Sida-founded project regarding Regional Development in Sri Lanka (referred to as the Main Project). Our part was conducted as a Minor Field Study. The outcome is presented in three parts. The overall objective of the Main Project is to investigate if the strategies for regional development have been successful. Using GIS in the Main Project may simpl

Populärvetenskaplig sammanfattning: Under ett år, från mars 2000 till april 2001, samlades data om arktiska aerosoler in på mätstationen Zeppelin, Ny-Ålesund, Svalbard. Två instrument användes, en Condensation Particles Counter och en Differential Mobility Particle Sizer som mätte aerosoler i storleks intervallet 0.02-0.621 μm. Resultatet har analyserats och utvärderats med hjälp av 10 dagars baklAerosols have been measured at the Zeppelin station, at Ny-Ålesund, Svalbard, from March 2000 to April 2001. Two instruments were used, a Condensation Particles Counter and a Differential Mobility Particle Sizer, which measured total aerosol number density above 0.02 μm as well as the aerosol size distribution between 0.02 μm and 0.621 μm in diameter. The results have been analyzed with help of 10

Populärvetenskaplig sammanfattning: Detta är en litteraturstudie avsedd att belysa forskningsfronten vad gäller El Niño, och framför allt dess fjärrpåverkan. Jag har valt att enbart rikta in mig på de klimatologiska aspekterna av fenomenet och går därmed inte in på ekonomiska förluster eller förändringar för olika ekosystem. El Niño utgör en naturlig och regelbundet förekommande del av cirkulationThis paper is a literature study aiming to describe scientists newest theories and knowledge concerning the El Niño and Southern Oscillation. Firstly I have described the ”normal” conditions with rising and sinking air in Hadley- and Walker-cells in the equatorial Pacific and from there moved on to explaining the reversed circulation patterns and higher sea surface temperatures (SST) leading to ri

Populärvetenskaplig sammanfattning: Allt fler rapporter har kommit under de senaste åren som visar på att våg- och stormklimatet har förvärrats sedan 1960-talet. Detta har oroat bland andra återförsäkringsbolag som har betalat ut allt mer pengar till stormrelaterade skador de senaste åren. Andra undersökningar har visat att det nuvarande storm- och vågklimatet inte är värre än det var i början av The effects of a global climatic change on the wind climate of northwestern Europe are investigated with the aid of a regional climate model. There have up to date been few studies of how the wind climate will react to a greenhouse gas warming. Those that have been done are mostly global scale studies and centered on changes in storm activity during the winter season. I’m using data from a regiona

Som ett led i de åtaganden som ställs på de länder som har undertecknat Kyotoprotokollet måste landvisa kolbudgetar fastställas. För att fastlägga bra kolbudgetar är det viktigt att kunna göra bra uppskattningar av kolmängden inom olika geografiska områden. Detta dels för att kunna uppskatta befintliga mängder och dels för att kunna påvisa förändringar över tiden. Denna studie hade som huvudmål atAs part of the undertakings of the Kyoto treaty, country-wise carbon balances must be brought forward. To do this, it is important to be able to make good estimations of the amount of carbon in forest areas. The reasons for this are to estimate the existing amounts as well as to prove changes over time. The main goal of this study was to estimate the amount of carbon stored in trees in a hundred-y

The aim of this study is to analyze the change of Basque nationalism during the last ten years and discuss how the main nationalist party (PNV) tries to impose "we"- feelings and support for its cause. Theories of nationalism and national identity are used in the analysis. A textual analysis of PNV:s unofficial documents is discussed and compared with a discourse analysis of its officia

The purpose of this paper is to give a view of how violence and victims has been portrayed in novels. I have chosen 6 books where the main character is a child who has been exposed to physical, mental and/or sexual violence. I have asked questions to the book and I have tried to find patterns in the child's strategy to cope with violence and how the violence is described. I have also written t

Malmö, like many other bigger cities in Europe, faces a double undertaking when facing the challenges the future. Not only must the municipal be able to provide its citizens with welfare and a high standard of living, it must also establish a level of economic growth that allows the city to act as catalyst for the surrounding area. In order to provide the population with welfare and the economy wi

The aim with this thesis was to investigate the land surface model used in DAYCENT. Through comparing the simulated soil moisture and soil temperature results with observed data, at the depth of 30 and 60 cm at the Demokeya site in semiarid Sudan, it was possible to evaluate the model. The ecosystem model uses soil texture data, land management information, and daily weather data to simulate plant