@Article{essd-18-2749-2026,
AUTHOR = {Chen, L. and Cai, Z. and Sun, K. and Liu, Y. and Yang, D. and Li, M. and Zhu, L.},
TITLE = {Deriving regional and point source nitrogen oxides emissions in China from
TROPOMI using the directional derivative approach with nonlinear chemical
lifetime fitting},
JOURNAL = {Earth System Science Data},
VOLUME = {18},
YEAR = {2026},
NUMBER = {4},
PAGES = {2749--2767},
URL = {https://essd.copernicus.org/articles/18/2749/2026/},
DOI = {10.5194/essd-18-2749-2026}
}