Mission and instrument concept of EarthCARE FTS

An FTS instrument is proposed for a part of active and passive sensor combination of the EarthCARE mission, jointly proposed to the 2nd ESA earth explorer selection. The FTS will be a compact 4-ports dual pendulum design with 0.5 cm -1 spectral resolution to cover 400-2000 cm -1 region. The IFOV is 10 by 10 km square to coincide with other passive instruments, and the observation is contiguous which is required for the EarthCARE.