Intensity Calculations of CO2 Molecule using Schwenke PES

Due to its strong opacity in the IR region, CO$_{2}$ has a major impact of the Earth's atmosphere and the climate. Spectroscopic investigation of CO$_{2}$ will enable scientists develop an understanding of the impact of human induced and natural changes on the Earth's atmosphere. Results will aid the prediction of weather and climate changes and help inhibit the development of Greenhouse effect. Computations of line intensity of CO$_{2}$ were carried out using the Schwenke potential energy surface$^{1}$ and dipole moment surface$^{2}$. Computations were done using the SCF$^{3}$ and the CCSDT$^{4}$ models. Results were compared with the data listed in Hitran96$^{5}$.