"Deriving regional and point source nitrogen oxides emissions in China from TROPOMI using the directional derivative approach with nonlinear chemical lifetime fitting"

"Deriving regional and point source nitrogen oxides emissions in China from TROPOMI using the directional derivative approach with nonlinear chemical lifetime fitting" - Interactive discussion https://essd.copernicus.org/preprints/essd-2025-480/ "Deriving regional and point source nitrogen oxides emissions in China from TROPOMI using the directional derivative approach with nonlinear chemical lifetime fitting" - Interactive discussionAC2: 'Reply on RC2', Ling Chen, 09 Mar 2026https://essd.copernicus.org/preprints/essd-2025-480/essd-2025-480-AC2.pdfAC2: 'Reply on RC2', Ling Chen, 09 Mar 20262026-03-09T23:42:37+01:00AC1: 'Reply on RC1', Ling Chen, 09 Mar 2026https://essd.copernicus.org/preprints/essd-2025-480/essd-2025-480-AC1.pdfAC1: 'Reply on RC1', Ling Chen, 09 Mar 20262026-03-09T23:41:02+01:00RC2: 'Comment on essd-2025-480', Anonymous Referee #2, 09 Feb 2026https://essd.copernicus.org/preprints/essd-2025-480/essd-2025-480-RC2.pdfRC2: 'Comment on essd-2025-480', Anonymous Referee #2, 09 Feb 20262026-02-09T05:33:32+01:00RC1: 'Comment on essd-2025-480', Anonymous Referee #1, 22 Dec 2025https://essd.copernicus.org/preprints/essd-2025-480/essd-2025-480-RC1.pdfRC1: 'Comment on essd-2025-480', Anonymous Referee #1, 22 Dec 20252025-12-22T14:04:32+01:00