Sökning: "Glacier"

Visar resultat 11 - 15 av 113 uppsatser innehållade ordet Glacier.

1. 11. Creating a semantic segmentationmachine learning model for sea icedetection on radar images to study theThwaites region

   Master-uppsats, Luleå tekniska universitet/Rymdteknik

   Författare :Carmen Fuentes Soria; [2022]
   Nyckelord :Synthetic Aperture Radar SAR ; Machine Learning ML ; Semantic segmentation; Convolutional Neural Networks CNN ; Thwaites Glacier;

   Sammanfattning : This thesis presents a deep learning tool able to identify ice in radar images fromthe sea-ice environment of the Twhaites glacier outlet. The project is motivatedby the threatening situation of the Thwaites glacier that has been increasingits mass loss rate during the last decade. LÄS MER

3. 12. Integration of geology with geophysics : Case studies from Svalbard

   Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

   Författare :Sofia Rylander; Anna Sterley; [2022]
   Nyckelord :Gravity Measurements; Magnetic Measurements; Anomalies; Seismic; Fault Zones; Svalbard;

   Sammanfattning : This is a study where new and old geophysical data together with information found in literature has been integrated to get a better understanding of the geological evolution of Svalbard. The purpose of the study is to acquire and integrate different geophysical data over the Central Spitsbergen Basin (CSB) and across the Billefjorden Fault Zone (BFZ). LÄS MER

4. 13. Vegetation cover change on Tindfjöll mountains, Iceland, assessed by aerial photographs, topography, and climate

   Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Författare :Guðrún Guðjónsdóttir; [2022]
   Nyckelord :Environmental changes; High Latitudes; Physical Geography; Ecosystem sciences; GIS; Climate Change; Vegetation change; Vegetation cover; Earth and Environmental Sciences;

   Sammanfattning : Guðrún Guðjónsdóttir Climate change is having a great impact on the fragile High Latitude environment where warming is occurring at a rate at least double the global average. It is urgent to understand the relationship between climate and vegetation cover, which is playing an important role, as a carbon sink, for biodiversity, and for protecting against natural hazards. LÄS MER

5. 14. Shallow near-surface lapse rates and their connection to glacier meteorology on Storglaciären and Rabots glaciär, Northern Sweden

   Master-uppsats, Stockholms universitet/Institutionen för naturgeografi

   Författare :Moon Taveirne; [2022]
   Nyckelord :Temperature lapse rate; glacier meteorology; near-­surface lapse rate; ablation gradient;

   Sammanfattning : Glacier melt is strongly impacted by climate and meteorology. Temperature lapse rates are used to model glacier melt, and the accuracy of the spatial distribution of modelled melt can be impacted by the lapse rate used in modelling. Additionally, the observed spatial distribution of melt is highly temporally variable. LÄS MER

7. 15. MIGRATION OF FLUID DURING DEFORMATION OF MOLTEN DEUTRATED ICE USING 3D IMAGE ANALYSIS

   Master-uppsats, Göteborgs universitet/Institutionen för geovetenskaper

   Författare :Uzochukwu Damian Akwuba; [2021-09-14]
   Nyckelord :Ice; Deformation; Tomography; Fluid Migration; Fractures;

   Sammanfattning : The behaviour of in ltrating and intergranular uid in an ice body is essential in understanding the de ection of the glacier body. The movement of the uid during deformation is most naturally controlled by compressive stress and temperature gradient which is important in understanding the behaviour of the glacier body. LÄS MER