Sökning: "Digital Elevation Models DEMs"

Visar resultat 1 - 5 av 15 uppsatser innehållade orden Digital Elevation Models DEMs.

  1. 1. Jämförelseanalys av höjdmodeller skapade med LiDAR-data från UAV och flygplan för projektering av kraftledningsgator

    Kandidat-uppsats, Karlstads universitet

    Författare :Hanna Edlund; [2023]
    Nyckelord :LiDAR; UAV; Airborne laser-scanning; Digital Elevation Model DEM ; Powerline; LiDAR; UAV; Flygburen laser-skanning; Höjdmodell; Kraftledning;

    Sammanfattning : I dagsläget står det svenska kraftnätet inför en stor utmaning om det ska kunna klara av att tillgodose Sveriges växande elbehov. Stora delar av kraftnätet måste förnyas samtidigt som det byggs ut. LÄS MER

  3. 2. Remote Sensing of Cryospheric Surfaces : Small Scale Surface Roughness Signatures in Satellite Altimetry Data

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Petter Ideström; [2023]
    Nyckelord :Remote sensing; Altimetry; Arctic; Cryosphere; ICESat-2; Cryosat-2; Svalbard;

    Sammanfattning : The Arctic cryosphere is experiencing a higher rate of warming compared to the rest of the world due to Arctic amplification. As glacier elevation change provide reliable evidence of climate change it is routinely measured by satellite altimeters. LÄS MER

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

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

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

    Sammanfattning : 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. LÄS MER

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

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

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

    Sammanfattning : 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. LÄS MER

  7. 5. Methods for assessing the consistency of the New National Height Model

    Master-uppsats, KTH/Fastigheter och byggande

    Författare :Sandra Rangelova; [2021]
    Nyckelord :DEM; LiDAR; Air-borne LiDAR; strip adjustment; quality control; DEM; LiDAR; Luftburna LiDAR; bandjustering; kvalitetskontroll;

    Sammanfattning : Digital Elevation Models (DEM) are a simple representation of the Earth’s surface. DEMs play an important role in the field of remote sensing and GIS and are used as basis for mapping and analysis for a vest majority of scientific applications. LÄS MER