Remote Measurements of Industrial CO2 Emissions Using a Ground-Based Differential Absorption Lidar in the 2 µm Wavelength Region

• DOI: 10.3390/rs15225403
• Publication Date: 2023-11-17T14:23:43Z
• Authors: Neil Howes; Fabrizio Innocenti; Andrew Finlayson; Chris Dimopoulos; Rod Robinson; Tom Gardiner
• Keywords: Dial; Fugitive emissions

Carbon dioxide (CO2) is a known greenhouse gas and one of the largest contributors to global warming in Earth’s atmosphere. The remote detection measurement CO2 from industrial emissions are not routinely carried out typically calculated fuel combusted or measured directly within ducted vents. However, these methods applicable for quantification fugitive CO2. This work presents results using differential absorption lidar (DIAL) technique at wavelength ~2 µm. DIAL measurements compare well with simultaneous in-stack measurements, datasets were plotted against each other can be described by linear regression y (t/h) = 1.04 x − 0.02, suggesting any bias data likely small. Moreover, definition outlined EN 15267-3 lower limit 0.12 t/h was estimated 2 µm data, this three orders magnitude than corresponding NPL 1.5 region. Thus, paper demonstrates feasibility high-resolution, ground-based quantifying emissions.