Sökning: "Medieval Warm Period"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden Medieval Warm Period.

1. 1. Reconstructing Past Climate by Using XRF and Loss of Ignition on Loess from Adventdalen, Svalbard : Rekonstruktion av tidigare klimat genom attanvända XRF analys och antändningsförlust på lössavlagringar från Adventdalen, Svalbard

   Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Albin Andreasson; Noa Lind; [2023]
   Nyckelord :Svalbard; loess soil; XRF; weathering; climate change;

   Sammanfattning : By analyzing the texture, composition and chemical composition of loess soils, the reconstruction ofpast climate regimes is enabled, which can improve our understanding of current and future climatechange. Properties such as grain size and composition, mineralogy, organic matter and chemicalcomposition can provide information about which environmental factors were present during thedeposition of the sediment, which can lead to a detailed picture of the climate history of a site. LÄS MER

3. 2. Klimat och väder i Nordatlanten-regionen under det senaste årtusendet

   Kandidat-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Linus Brakebusch; [2020]
   Nyckelord :Solar activity; Volcanic activity; North Atlantic Oscillation NAO ; Medieval Warm Period; Little Ice Age; Earth and Environmental Sciences;

   Sammanfattning : One of the most important areas in climatology today is the development of climate models. To evaluate how well a particular climate model is working it is compared with climate reconstructions based on proxy-data, which is indirect climate information that can be obtained from climate archives. LÄS MER

4. 3. A high-resolution oxygen isotope reconstruction of humidity changes in central Sweden during the late Holocene

   Master-uppsats, Stockholms universitet/Institutionen för naturgeografi och kvartärgeologi (INK)

   Författare :Simon Larsson; [2014]
   Nyckelord :stable; isotope; oxygen; carbonate; humidity; sweden; holocene;

   Sammanfattning : Records of stable oxygen isotope variations from a variety of proxies have been used in palaeoclimatic research since the 1950’s. Several studies have applied stable isotope analysis of lake sediments to reconstruct past climate changes in central and northern Sweden, including a study of Lake Blektjärnen in Jämtland, central Sweden, by Andersson (2010). LÄS MER

5. 4. Late Holocene palaeoenvironmental reconstruction on a peat sequence from northeastern South Africa, using grass phytoliths as main proxy

   Master-uppsats, Stockholms universitet/Institutionen för naturgeografi och kvartärgeologi (INK)

   Författare :Jenny Sjöström; [2013]
   Nyckelord :Late Holocene; South Africa; Palaeoenvironmental reconstruction; Phytolith; Bokoni;

   Sammanfattning : Contemporary a geographical imbalance of where palaeoclimatological studies have been undertaken exists, where the majority of palaeodata is based on studies from the northernhemisphere. Multiproxy analysis was performed on a peat core from Lydenburg, north-eastern Mpumalanga, covering the last 1.600 years. LÄS MER

7. 5. Comparison between two sediment X-ray Fluorescence records of the Late Holocene from Disko Bugt, West Greenland : paleoclimatic and methodological implications,

   Master-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Oskar Jäckel; [2009]
   Nyckelord :Disko Bugt; X-ray fluorescence; mineral magnetism; magnetic susceptibility; paleomagnetism; bromine; productivity; Medieval Warm Period; Earth and Environmental Sciences;

   Sammanfattning : Popular summary: X-raying the climate archive of Disko Bugt. Disko Bugt is a large bay in West Greenland north of the Arctic Circle. Because of the influence of the relatively warm ocean current coming from the south; the West Greenland Current, it has a mild climate despite its latitude. LÄS MER