Abstract: An image processing method includes receiving satellite imagery corresponding to an area of the Earth and to a plurality of waveband channels having a first waveband. The satellite imagery includes a first top of atmosphere spectral reflectance image corresponding to the first waveband. The method further includes receiving methane plume data is received having a concentration corresponding to each pixel of the satellite images. A first synthetic transmittance image is calculated corresponding to the first waveband, based on the methane plume data, an absorbance of methane in the first waveband and a spectral response function of the satellite in the first waveband. A first output synthetic image is generated by combining the first synthetic transmittance image with the first top of atmosphere spectral reflectance image. The first output synthetic image is subsequently output or stored.

Abstract: A method for measuring thermal conductivity of a material contains the now described steps. A heat pulse is applied to a front side of the material. The resulting time-dependent two-dimensional temperature field of the front side of the material is detected using an infrared detector. An isotherm is identified in the temperature field. First and second thermal conductivities of the material in first and second directions of the material are calculated on the basis of the shape of the isotherm and on the basis of first and second temperatures detected at one point of the front side of the material at two points in time.