*3.1. Datasets*

In the experiment, the paired data consists of spectral remote sensing images of earth background and condition information data including earth surface type data and cloud type data. For paired data of spectral images, the earth coordinates corresponding to each pixel need to be aligned since the task aims to achieve spectral translation at the pixel level of the image. The model establishes the mapping relationship between spectra by learning the intensity mapping relationship originating from the same location and time of the sampled images.
