The ddeq Python library for point source quantification from remote sensing images (Version 1.0)

Kuhlmann, Gerrit; Koene, Erik F. M.; Meier, Sandro; Santaren, Diego; Broquet, Grégoire; Chevallier, Frédéric; Hakkarainen, Janne; Nurmela, Janne; Amorós, Laia; Tamminen, Johanna; Brunner, Dominik

Anthropogenic emissions from “hotspots”, i.e. cites, power plants and industrial facilities, can be determined from remote sensing images obtained from airborne and space-based imaging spectrometers. In this paper, we present a Python library for data-driven emission quantification ( ddeq) that implements various computationally light methods such as Gaussian plume inversion, cross sectional flux method, integrated mass enhancement method and divergence method. The library provides a shared interface for data input and output as well as tools for pre- and post-processing of data. The shared interface makes it possible to easily compare and benchmark the different methods. The paper describes the theoretical basis of the different emission quantification methods and their implementation in the ddeq library. The application of the methods is demonstrated using Jupyter Notebooks included in the library, for example, for NO 2 images from the Sentinel-5P/TROPOMI satellite and for synthetic CO 2 and NO 2 images from the Copernicus CO 2 Monitoring (CO2M) satellite constellation. The library can be easily extended for new datasets and methods, providing a powerful community tool for users and developers interested in emission monitoring using remote sensing images.

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Kuhlmann, Gerrit / Koene, Erik F. M. / Meier, Sandro / et al: The ddeq Python library for point source quantification from remote sensing images (Version 1.0). 2024. Copernicus Publications.

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