INFRARED CROSS-SECTIONS AND GLOBAL WARMING POTENTIALS OF 10 ALTERNATIVE HYDROHALOCARBONS

Absorption cross sections have been obtained in the infrared atmospheric window, between 600 and 1500 cm-1, for 10 alternative hydrohalocarbons: HCFC22, HCFC123, HCFC124, HCFC141b, HCFC142b, HCFC225ca, HCFC225cb, HFC125, HFC134a and HFC152a. The measurements were made at three temperatures (287 K, 270 K and 253 K) with a Fourier transform spectrometer operating at 0.03 cm-1 apodized resolution. Integrated cross sections have been introduced into a two-dimensional radiative-chemical-dynamical model in order to calculate the global warming potential (GWP) of each gas.