Sökning: "satellite imagery"

Visar resultat 1 - 5 av 38 avhandlingar innehållade orden satellite imagery.

1. 1. Earth satellites and air and ground-based activities

   Författare :Ulf Ekblad; KTH; []
   Nyckelord :Remote sensing; reconnaissance; sensor; information acquisition; satellite imagery; image processing; image analysis; change detection; pixel difference; neuron network; cortex model; PCNN; ICM; entanglement; Earth observation; nuclear explosion; SPO;

   Sammanfattning : This thesis, Earth satellites and detection of air andground based activities by Ulf Ekblad of the Physics departmentat the Royal Institute of Technology (KTH), addresses theproblem of detecting military activities in imagery. Examplesof various techniques are presented. LÄS MER

3. 2. Tree Species Classification : Analyzing Multitemporal Satellite Imagery and Multispectral Airborne Laser Scanning Data

   Författare :Arvid Axelsson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Sammanfattning : Tree species composition of forests affects the whole ecosystem and is part of the information needed for an efficient planning of forest management. This thesis explores how recent developments in remote sensing can provide more accurate tree species mapping. LÄS MER

4. 3. The use of a satellite-derived cloud climatology for studying cloud-aerosol processes and the performance of regional cloud climate simulations

   Författare :Karl-Göran Karlsson; Erland Källen; Jon-Egil Kristjansson; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Clouds and climate; satellite cloud climatology; validation of clouds; clouds and aerosols; Meteorology; Meteorologi;

   Sammanfattning : The entry of satellite-derived decadal cloud datasets with homogeneous coverage in time and space enables studies not possible before. This thesis presents two such applications. The first study deals with cloud-aerosol processes and the second with an evaluation of cloud simulations from a regional climate model. LÄS MER

5. 4. Landscape from space : geographical aspects on scale, regionalization and change detection

   Författare :Ola Hall; Risto Kalliola; Stockholms universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Regionalization; Scale; Change detection; Multiscale analysis; Objectspecific analysis; Watershed transformation; Landscape; Satellite data; Geography; Complex systems theory; Fuzzy set theory; Multicriteria-evaluation.; Human geography; Kulturgeografi; Human Geography; kulturgeografi;

   Sammanfattning : Landscapes are complex systems composed of multiscale hierarchically organized entities that interact within unique spatial and temporal scales. These interactions result in scaledependent spatial patterns that visually change depending upon the scale at which they are observed. LÄS MER

7. 5. Urban Origins in Southern Sri Lanka

   Författare :Raj Somadeva; Paul Sinclair; Sunil Gupta; Uppsala universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; Archaeology; Archaeology; Sri Lanka; Kirindi Oya; urbanism; ceramics; beads; historical archaeology; settlement archaeology; inscriptions; Land Unit classification; satellite image; Arkeologi; Archaeology subjects; Arkeologiämnen; arkeologi; Archaeology;

   Sammanfattning : This study focuses upon the development of urbanisation in southern Sri Lanka during the proto, early and late historical periods c. 900 BC onwards. The following research themes are addressed:(a). Why did the southern semi-arid zone become a focus of urbanism?(b). LÄS MER