Now showing items 1-9 of 9

    • Application of multifractal analysis to the study of SAR features and oil spills on the ocean surface 

      Tarquis Alfonso, Ana Maria; Platonov, A.; Matulka, Anna Magdalena; Grau, J.; Sekula, Emil; Diez, M.; Redondo Apraiz, José Manuel (University of Thechnology and Agriculture Nicholas Copernicus University, 2014-01-01)
      Article
      Open Access
      The use of synthetic aperture radar (SAR) to investigate the ocean surface provides a wealth of useful information that is very seldom used to its full potential. Here we will discuss the application of multifractal ...
    • Multifractal analysis of SAR of the ocean surface, currents, eddy structure, oil slicks and diffusivity analysis 

      Redondo Apraiz, José Manuel; Grau, J.; Matulka, Anna Magdalena; Platónov, Alexéi Konstantínovich (2010)
      Conference lecture
      Restricted access - publisher's policy
    • Multifractal observations of eddies, oil spills and natural slicks in the ocean surface 

      Platónov, Alexéi Konstantínovich; Carrillo Cortés, José Alejandro; Matulka, Anna Magdalena; Sekula, Emil; Grau Barceló, Joan; Redondo Apraiz, José Manuel; Tarquis, Ana Maria (2009-06-11)
      Article
      Restricted access - publisher's policy
      Natural and man-made distributions of tensioactive substance concentrations in the sea surface features exhibit self-similarity at all radar reflectivity levels when illuminated by SAR. This allows the investigation of the ...
    • Multiscale analysis of SAR from the earth surface 

      Redondo Apraiz, José Manuel; Tarquis, Ana Maria; Matulka, Anna Magdalena; Platónov, Alexéi Konstantínovich (Universidad Complutense de Madrid (UCM), 2010)
      Conference lecture
      Open Access
      The use of Synthetic Aperture Radar (SAR) to investigate the earth’s surface provides a wealth of useful information. Here we will discuss some recent fractal and multi-fractal techniques used to identify oil spills and ...
    • Multiscaling properties on sequences of turbulent plumes images 

      Lopez Gonzalez-Nieto, Pilar; Tarquis Alfonso, Ana Maria; Matulka, Anna Magdalena; Skadden, Benjamin; Redondo Apraiz, José Manuel (2017-12-01)
      Article
      Open Access
      A multifractal analysis on a finite-range-scale of the plume concentration images at different experimental conditions (the height of the source Ho), where the measure is the grey value of the image (from 0 to 255), was ...
    • On the entrainment coefficient in a forced plume: quantitative effects of source parameter 

      Matulka, Anna Magdalena; Lopez Gonzalez-Nieto, Pilar; Redondo Apraiz, José Manuel; Tarquis Alfonso, Ana Maria (University of Thechnology and Agriculture Nicholas Copernicus University, 2014-02-24)
      Article
      Open Access
      The behavior of a forced plume is mainly controlled by the source buoyancy and momentum fluxes and the efficiency of turbulent mixing between the plume and the ambient fluid (stratified or not). The interaction between the ...
    • ROFI structure in the gulf of Lions and the NW Mediterranean Sea: field and remote sensing observations of surface coherent structures 

      Fraunie, Philippe; Redondo Apraiz, José Manuel; Platónov, Alexéi Konstantínovich; Díez Rilova, Margarita; Matulka, Anna Magdalena (Universidad Complutense de Madrid (UCM), 2010)
      Conference lecture
      Open Access
      The advances in radar sensors may be applied to study the flow in the region of fresh water influence (ROFI) region of the ocean. The Synthetic Aperture Radar (SAR) is a useful tool that may be used to study both marine ...
    • Turbulent structure in environmental flows: effects of stratification and rotation 

      Matulka, Anna Magdalena (Universitat Politècnica de Catalunya, 2010-03-19)
      Doctoral thesis
      Open Access
      Several series of experiments in stratified and in rotating/stratified decaying flows after a grid is used to stir the two layer stable fluid brine and fresh water set up. We measure by comparing the gained potential ...
    • Vortex decay in stratified flows 

      Redondo Apraiz, José Manuel; Matulka, Anna Magdalena; Carrillo Cortés, José Alejandro (2010)
      Conference report
      Restricted access - publisher's policy