Volcanic skyscapes
| dc.contributor.advisor | Gain, James | |
| dc.contributor.author | Pretorius, Pieter Cilliers | |
| dc.date.accessioned | 2025-10-13T13:49:51Z | |
| dc.date.available | 2025-10-13T13:49:51Z | |
| dc.date.issued | 2025 | |
| dc.date.updated | 2025-10-13T13:47:12Z | |
| dc.description.abstract | Explosive volcanic eruptions are some of the most visually impressive natural phe-nomena, and are frequently represented in visual media such as films or games, usually with a bespoke, one-off solution. Existing plume models treat the atmo-sphere as a static boundary, while existing atmosphere models are not designed for the extremes present in a plume. We present the first general-purpose model with bi-directional interaction between a volcano plume and the atmosphere. The atmo-sphere is modelled as sparse layers of 2D Eulerian grids, while the plume dynamics are modelled with Lagrangian disks and spheres. We enable the transfer of physi-cal quantities such as ash, moisture, temperature, and wind velocity between these submodels. Volumetric animations are generated through procedural upsampling using noise functions, specifically tuned to the physical processes in play, to create a complete volcanic skyscape. Our model depicts most of the relevant facets arising from plume and atmosphere interactions, such as ash rain, embedded bell, cap, and skirt clouds, shockwave effects, and volcanic lightning. | |
| dc.identifier.apacitation | Pretorius, P. C. (2025). <i>Volcanic skyscapes</i>. (). Universiy of Cape Town ,Faculty of Science ,Department of Computer Science. Retrieved from http://hdl.handle.net/11427/42003 | en_ZA |
| dc.identifier.chicagocitation | Pretorius, Pieter Cilliers. <i>"Volcanic skyscapes."</i> ., Universiy of Cape Town ,Faculty of Science ,Department of Computer Science, 2025. http://hdl.handle.net/11427/42003 | en_ZA |
| dc.identifier.citation | Pretorius, P.C. 2025. Volcanic skyscapes. . Universiy of Cape Town ,Faculty of Science ,Department of Computer Science. http://hdl.handle.net/11427/42003 | en_ZA |
| dc.identifier.ris | TY - Thesis / Dissertation AU - Pretorius, Pieter Cilliers AB - Explosive volcanic eruptions are some of the most visually impressive natural phe-nomena, and are frequently represented in visual media such as films or games, usually with a bespoke, one-off solution. Existing plume models treat the atmo-sphere as a static boundary, while existing atmosphere models are not designed for the extremes present in a plume. We present the first general-purpose model with bi-directional interaction between a volcano plume and the atmosphere. The atmo-sphere is modelled as sparse layers of 2D Eulerian grids, while the plume dynamics are modelled with Lagrangian disks and spheres. We enable the transfer of physi-cal quantities such as ash, moisture, temperature, and wind velocity between these submodels. Volumetric animations are generated through procedural upsampling using noise functions, specifically tuned to the physical processes in play, to create a complete volcanic skyscape. Our model depicts most of the relevant facets arising from plume and atmosphere interactions, such as ash rain, embedded bell, cap, and skirt clouds, shockwave effects, and volcanic lightning. DA - 2025 DB - OpenUCT DP - University of Cape Town KW - Masters LK - https://open.uct.ac.za PB - Universiy of Cape Town PY - 2025 T1 - Volcanic skyscapes TI - Volcanic skyscapes UR - http://hdl.handle.net/11427/42003 ER - | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/11427/42003 | |
| dc.identifier.vancouvercitation | Pretorius PC. Volcanic skyscapes. []. Universiy of Cape Town ,Faculty of Science ,Department of Computer Science, 2025 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/42003 | en_ZA |
| dc.language.iso | en | |
| dc.language.rfc3066 | eng | |
| dc.publisher.department | Department of Computer Science | |
| dc.publisher.faculty | Faculty of Science | |
| dc.publisher.institution | Universiy of Cape Town | |
| dc.subject | Masters | |
| dc.title | Volcanic skyscapes | |
| dc.type | Thesis / Dissertation | |
| dc.type.qualificationlevel | Masters | |
| dc.type.qualificationlevel | MSc |