High accuracy CO2 line intensities determined from theory and experiment
Joseph T. Hodges, Oleg L. Polyansky, Katarzyna E. Bielska, Melanie C. Ghysels, Lorenzo Lodi, N Zobov, Jonathan Tennyson
The atmospheric concentration of carbon dioxide (CO2), with its consequences for the greenhouse effect and climate change, is being closely monitored by a variety of space-borne and ground-based remote sensing experiments. These experiments require a relative uncertainty of 0.5 % or better for CO2 line absorption intensities. Here we report a joint experimental and theoretical study providing rotation-vibration line intensities with this precision. The ab initio quantum mechanical calculations are extendible to all atmospherically important bands of CO2 and to its isotopically substituted variants.
, Polyansky, O.
, Bielska, K.
, Ghysels, M.
, Lodi, L.
, Zobov, N.
and Tennyson, J.
High accuracy CO2 line intensities determined from theory and experiment, Science, [online], https://doi.org/10.1103/PhysRevLett.114.243001
(Accessed December 9, 2023)