Sökning: "RADARSAT"

Hittade 3 uppsatser innehållade ordet RADARSAT.

  1. 1. Mapping wetland areas on forested landsacpes using Radarasat-2 and Landsat-5 TM data

    Master-uppsats, SLU/Dept. of Forest Resource Management

    Författare :Jennifer Martin; [2012]
    Nyckelord :Radarsat; Landsat; wetlands; classification; land cover; multi-soruce data; remote sensing; Random Forests; Maximum Likelihood Classifier;

    Sammanfattning : Wetlands are an important ecosystem for many vital functions such as groundwater recharge, flood control, water quality improvement, and to mitigate erosion. Monitoring and mapping wetlands on a large scale is becoming increasingly more important, and satellite remote sensing provides a practical approach. LÄS MER

  2. 2. Comparison and Fusion of space borne L-, C- and X- Band SAR Images for Damage Identification in the 2008 Sichuan Earthquake

    Master-uppsats, KTH/Geoinformatik och Geodesi

    Författare :SIN WAI LAU; [2011]
    Nyckelord :Remote sensing; SAR; image fusion; Sichuan earthquake; PALSAR; RADARSAT-1; TerraSAR-X;

    Sammanfattning : Remote sensing has been widely used in disaster management. However, application of optical imageries in damage detection is not always feasible for immediate damage assessment. In the case of the Sichuan earthquake in 2008, the damaged areas were covered by cloud and fog for most of the time. LÄS MER

  3. 3. Analysis of polarimetric signatures of Arctic lead ice using data from AIRSAR and RADARSAT

    H-uppsats, Chalmers tekniska högskola/Institutionen för radio- och rymdvetenskap

    Författare :Daniel Bäck; [2008]
    Nyckelord :AIRSAR; RADARSAT; polarimetry; Arctic; Beaufort Sea; sea-ice; thin ice; young ice; lead ice; multi-year ice; sea ice thickness; polarimetric signatures; backscatter; co-polarized phase; classification;

    Sammanfattning : In December 2004 the JPL airborne synthetic aperture radar (AIRSAR) flown on the NASA DC-8 acquiredfully polarimetric data in the Beaufort Sea at C, L and P-band. This work presents the backscattercoefficients (σHH, σVV, σHV), copolarized ratios (σHH/σVV) and copolarized phase differences (ϕHH-VV) at thethree frequencies from various sea ice types and in particular different young sea-ice types formed inrecently frozen leads. LÄS MER