Essays about: "Digital Elevation Modelling"

Showing result 1 - 5 of 28 essays containing the words Digital Elevation Modelling.

1. 1. GIS and remote sensing based mapping of microtopography and vegetation composition in a boreal mire complex

   University essay from SLU/Dept. of Forest Ecology and Management

   Author : Nils Helge Havertz; [2023]
   Keywords : Microtopography modelling; Remote sensing; Boreal mixed mires; Object Based Image Analysis OBIA ; random forest RF ;

   Abstract : Small scale variations in mire surface elevation referred to as microtopography are fundamental characteristics of mire ecosystems especially in the boreal region. Microtopography commonly classified into hummocks and hollows play a major role in several ecological, hydrological and biogeochemical processes including vegetation composition and carbon and methane dynamics. READ MORE

3. 2. Sediment Transport and Erosion in Viskan River, South Sweden

   University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

   Author : Siyuan Wang; [2022]
   Keywords : HEC-RAS; cross section; erosion; sediment transport; deposition; Technology and Engineering;

   Abstract : This master thesis study presents the results of sediment transport analysis along Viskan, located in south Sweden. The main processes cover building a hydrodynamic model, studying parameters that define sediment transport, modelling sediment transport within the river, mapping out erosive stretches and comparing to observed eroded locations, and finally comparison of different transport functions how they influence the results. READ MORE

4. 3. Effects of modified river cross-section geometry on hydraulic modelling performance: the slope break method

   University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

   Author : Feixiong Qu; [2021]
   Keywords : ;

   Abstract : Remote sensing data has been widely used for large scale hydraulic modelling in the world. One of the most common ways to collect remote sensing data is by satellite. The digital elevation data observed from space is publicly accessible and covers almost all areas of the earth. However, the satellite cannot observe the river bathymetry. READ MORE

5. 4. Urban infrastructure inundation risk from permanent sea-level rise scenarios in London (UK), Bangkok (Thailand) and Mumbai (India): A comparative analysis

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Shawn Pace; [2021]
   Keywords : Geography; GIS; Climate Change; Sea-Level Rise; Urban Infrastructure; DEM; London; Mumbai; Bangkok; Earth and Environmental Sciences;

   Abstract : Due to anthropogenically created climate change, global cities are facing inundation by rising sea levels. This study aimed to fill knowledge gaps in understanding the exposure of urban infrastructure such as roads, railways, buildings and parks to sea-level rise (SLR) scenarios, and how this would affect local populations. READ MORE

6. 5. The hydrodynamic impacts of Estuarine Oyster reefs, and the application of drone technology to this study

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Oskar Evert Johansson; [2021]
   Keywords : Geography; Geographical Information Systems; GIS; Physical Geography; Oyster Reef; Drone; UAV; Hydrodynamics; Earth and Environmental Sciences;

   Abstract : The impacts of climate change are being seen within the estuarine environment through erosion and shoreline retreat, associated with sea-level rise and changes in storm activity. Restoration oyster reefs have been identified as a working-with-nature strategy to protect and restore these shoreline environments, stabilising sediment, and reducing erosion. READ MORE