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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Volymändringar i Sareks och Kebnekaises glaciärer sedan lilla istiden

Engqvist, Linus January 2016 (has links)
Volume Changes of the Glaciers in Sarek and Kebnekaise since the End of the Little Ice Age Linus Engqvist  Since the end of the little ice age in the middle of the 19th century  the glaciers in the north of Sweden has experienced extensive melting and net loss of volume, but are all glaciers experiencing equal loss of volume or are there differences between them?  The purpose of this study is to examine 53 different glaciers in the Sarek and Kebnekaise regions in the North of Sweden and by using remote sensing techniques calculate the relative volume changes of the glaciers and then examine if there any differences between them with regards to massifs, historical area and ablation zone. The conclusion is that even though there are differences in loss between massif and ablation zone location the most significant factor to relative volume loss is the glaciers original area, but because of the limitations in the study further research is needed to better estimate the volume of the individual glaciers.
2

Vetenskapen : - En Forskningsstation i Tarfala / The Research Station in Tarfala

Zickerman, Linnéa January 2016 (has links)
Utan att forskarna riktigt kunde förklara varför stod det helt klart under 1900-talets första hälft att isarna blev mindre. På hela norra halvklotet blev glaciärerna allt mindre och denna storlekförändring sattes i samband med den temperaturökning som skett under samma tid. Glaciärerna krympte och man sökte den exakta kopplingen mellan klimatets förändring och smältande glaciärer. Professor Ahlman, glaciolog vid Stockholms universitet beslutade att Storglaciären i Tarfaladalen var platsen där mätningar skulle ske och sedan 1946 har Stockholms Universitet bedrivit verksamhet vid Tarfala Forskningsstation. Stationen fungerar som en plattform för glaciologer och används kontinuerligt av forskare och studentgrupper från SU men även av internationella forskare och studenter. Mätstudierna som utförs i Tarfala är betydelsefullt underlag för glaciologiska och klimatologiska studier, såväl nationellt som internationellt. Verksamheten och forskningsgruppen har med åren vuxit och är idag i stort behov av en större och mer komplex byggnad för att kunna bedriva forskning på världsledande nivå. I mitt examensarbete har jag undersökt platsen, vinden och forskningsverksamheten. / In the beginning of the 20th century the glaciers in the world got smaller. Scientists couldn’t explain why but tried to find a connection between climate change and melting glaciers. One of them, V. Schytt, made a ski journey between Abisko and Kebnekaise to find the most suitable glacier in Sweden for measuring mass balance. He faced the windy, rough but beautiful valley “Tarfaladalen”. He viewed over ”Storglaciaciaren” and realized that this site is optimal for a glacier research center. Since 1946 the Stockholm University founded a research station where both national researcher as well as international visits and uses as a platform. The data that is collected around this area is important information for glacier studies around the world. We are facing huge climate changes in the world and the Department of Geological Science in Tarfala are in need of a more complex building adapted to the extreme environment that gives the best support to practise science and research at an international high level. During my thesis project I have analyzed the site, the wind and the organisation Department of Geological Science in Tarfala.

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