Mars exospheric thermal and non-thermal components: Seasonal and local variations

► We developed a 3D martian exospheric model based on LMD-MGCM. ► Seasonal and local variations of exosphere are discussed. ► The density of thermal oxygen varies by about one order of magnitude with seasons. ► Escaping flux of non-thermal oxygen varies from 2.9 to 5.3 × 1025 s−1.