Change search
ReferencesLink to record
Permanent link

Direct link
Samband mellan vulkanutbrott och klimatförändringar: Analys och värdering av teorier om vulkanisk aska och gasers påverkan på det globala klimatet
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
2015 (Swedish)Independent thesis Advanced level (degree of Master (Two Years)), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

This literature review analyses and discusses different theories and results regarding impact of volcanic eruptions on climate change in Earth's history. Present global warming has been attributed to anthropogenic emissions of greenhouse gases, mainly carbon dioxide, however changes in global temperatures have occurred before the onset of anthropogenic emissions. Certain prehistoric climate changes are thought to be caused by emissions of volcanic gases to the atmosphere. Many studies have investigated the connection between volcanic events and subsequent changes in global temperatures. A majority have concluded that volcanic sulfur dioxide is the main direct and indirect climate forcing gas influencing temperatures over time. Increased volcanic activity over the last 15 years is thought to be an inhibiting factor on present global warming. This is supported by evidence of past volcanic events preceding global cooling and warming periods during Holocene and prehistoric times. Further, there are indications that factors such as geographical position, season, gas composition, magnitude and duration of an eruption influences the extent of the climate forcing.Records of climate such as ice cores and tree growth rings and isotopic characterization have made it possible to identify volcano eruptions over time and determine the identity of the erupting volcano. Past and present data from these can be used to gain a better understanding of past climate changes as well as making predictions about future changes as a result volcanic eruptions. However, accuracy regarding temporal and spatial resolution of these records is of great importance for the validity of the results.

Place, publisher, year, edition, pages
2015. , 20 p.
Keyword [en]
sulfur dioxide, volcanic gases, climate forcing, stratosphere, volcanoes
National Category
Other Earth and Related Environmental Sciences
URN: urn:nbn:se:umu:diva-114312OAI: diva2:894931
Subject / course
Teoretisk Geoekologi
Educational program
Master's Programme in Geoecology
Available from: 2016-01-18 Created: 2016-01-17 Last updated: 2016-01-18Bibliographically approved

Open Access in DiVA

fulltext(890 kB)37 downloads
File information
File name FULLTEXT01.pdfFile size 890 kBChecksum SHA-512
Type fulltextMimetype application/pdf

By organisation
Department of Ecology and Environmental Sciences
Other Earth and Related Environmental Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 37 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 55 hits
ReferencesLink to record
Permanent link

Direct link