Essays about: "Envisat"

Found 5 essays containing the word Envisat.

  1. 1. Satellite derived data to support flood modelling : An application to the Po River

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Victor Alejandro Ortiz Peña; Milos Dinic; [2018]
    Keywords : Hydraulic Modelling; Flood Modelling; HEC-RAS; Mannings Coefficient; DEM; LiDAR; SRTM; Virtual Stations;

    Abstract : Satellite derived data has become an essential input in hydraulic modelling. Digital ElevationModels (DEMs) derived from different sources through remote sensing techniques have become a powerful tool for poorly gauged regions. READ MORE

  3. 2. Measuring coastal erosion along the coast of Ystad municipality using PSInSAR and SBAS

    University essay from Stockholms universitet/Institutionen för naturgeografi

    Author : Tom Halldén Halldén; [2017]
    Keywords : GIS; PSInSAR; SBAS; erosion; coastal; radar; interferometry; ENVISAT; ERS-2;

    Abstract : In this study the use of two radar interferometry methods, PSInSAR and SBAS, were tested as tools for measuring coastal erosion. If successful it would have allowed for measuring coastal erosion as a function of material lost. The study area used was Ystad municipality, in southern Sweden. READ MORE

  4. 3. Attitude and Orbit Control During Deorbit of Tethered Space Debris

    University essay from KTH/Farkost och flyg

    Author : Linus Flodin; [2015]
    Keywords : space debris mitigation; deorbit; tethered satellites; mathematical modeling; attitude and orbit control system; LQG control; PID control; switched control;

    Abstract : Due to the unsustainable space debris environment in Low Earth Orbit, debris objects must be removed to ensure future safe satellite operations. One proposed concept for deorbiting larger space debris objects, such as decommissioned satellites or spent upper rocket stages, is to use a chaser spacecraft connected to the debris object by an elastic tether, but the required technology is immature and there is a lack of flight experience. READ MORE

  5. 4. Unsupervised Change Detection Using Multi-Temporal SAR Data : A Case Study of Arctic Sea Ice

    University essay from KTH/Geodesi och geoinformatik

    Author : Linda Fröjse; [2014]
    Keywords : sea ice; the Arctic; Kittler-Illingworth; generalized Gaussian distribution; log-normal distribution; ERS; ENVISAT; SAR; ASAR; havsis; Arktis; Kittler-Illingworth; generaliserad normaldistribution; lognormal distribtion; ERS; ENVISAT; SAR; ASAR;

    Abstract : The extent of Arctic sea ice has decreased over the years and the importance of sea ice monitoring is expected to increase. Remote sensing change detection compares images acquired over the same geographic area at different times in order to identify changes that might have occurred in the area of interest. READ MORE

  6. 5. ENVISAT ASAR for Land Cover Mappingand Change Detection

    University essay from KTH/Geodesi och satellitpositionering

    Author : Kazi Iashtiak Ahmed; [2006]
    Keywords : ;

    Abstract : The principal objective of this research is to investigate the capability of multi-temporal,multi-incidence angle, dual polarization ENVISAT ASAR imagery for extractinglanduse/land cover information in the rural-urban fringe of the Greater Toronto Area (GTA)using different image processing techniques and classification algorithms. An attempt todetermine the temporal change of landuse is also made. READ MORE