A method for creating a heat map of a territory, comprising the following steps: - receiving a first thermal image of a first landscape encompassing the territory, which was recorded by a recording device of a first satellite, wherein the first thermal image comprises pixels that are spatially associated with the territory, and the thermal image, pixel by pixel, assigns a respective first measured value to the territory; - receiving a second thermal image of a second landscape encompassing the territory, which was recorded by a recording device of a second satellite, wherein the second thermal image comprises pixels that are spatially associated with the territory, and the thermal image, pixel by pixel, assigns a respective second measured value to the territory; - wherein a temporal offset exists between the time at which the first thermal image is recorded and the time at which the second thermal image is recorded, the temporal offset being below an established threshold; and a radiometric precision of the first thermal image is higher than a radiometric precision of the second thermal image; and a spatial resolution of the second thermal image is higher than a spatial resolution of the first thermal image; - determining, for a first pixel group of the second thermal image, the first pixel group being spatially associated with the territory, the first pixel group comprising a plurality of pixels, a measured value offset of the first pixel group by way of a comparison of relative measured values of the pixels of the first pixel group of the second thermal image to the first measured value of the at least one pixel of the first thermal image, which is at least partially spatially associated with the first pixel group of the second thermal image; - determining corrected absolute measured values of the pixels of the first pixel group which are associated with the territory, based on the second measured values of the pixels of the first pixel group as well as the measured value offset; and - creating the precise heat map of the territory based on the corrected absolute measured values. - receiving a first thermal image of a first landscape encompassing the territory, which was recorded by a recording device of a first satellite, wherein the first thermal image comprises pixels that are spatially associated with the territory, and the thermal image, pixel by pixel, assigns a respective first measured value to the territory; - receiving a second thermal image of a second landscape encompassing the territory, which was recorded by a recording device of a second satellite, wherein the second thermal image comprises pixels that are spatially associated with the territory, and the thermal image, pixel by pixel, assigns a respective second measured value to the territory; - wherein a temporal offset exists between the time at which the first thermal image is recorded and the time at which the second thermal image is recorded, the temporal offset being below an established threshold; and a radiometric precision of the first thermal image is higher than a radiometric precision of the second thermal image; and a spatial resolution of the second thermal image is higher than a spatial resolution of the first thermal image; - determining, for a first pixel group of the second thermal image, the first pixel group being spatially associated with the territory, the first pixel group comprising a plurality of pixels, a measured value offset of the first pixel group by way of a comparison of relative measured values of the pixels of the first pixel group of the second thermal image to the first measured value of the at least one pixel of the first thermal image, which is at least partially spatially associated with the first pixel group of the second thermal image; - determining corrected absolute measured values of the pixels of the first pixel group which are associated with the territory, based on the second measured values of the pixels of the first pixel group as well as the measured value offset; and - creating the precise heat map of the territory based on the corrected absolute measured values.