The vertical distribution of dust in the Martian atmosphere during northern spring and summer: Observations by the Mars Climate Sounder and analysis of zonal average vertical dust profiles

摘要: [1] The vertical distribution of dust in Mars's atmosphere is a critical and poorly known input atmospheric physical chemical models source insight into the lifting transport general mixing atmosphere. We investigate profiles opacity retrieved from limb observations by Mars Climate Sounder during relatively dust-clear Martian northern summer 2006–2007 (Ls = 111°–177°of year (MY) 28) spring 2007–2008 0°–180° MY 29). To represent local maxima inferred mass ratio these profiles, we develop an empirical alternative to classic “Conrath profile” for representing then assess magnitude variability loading, depth penetration seasons, impact observed on radiative forcing circulation. During most summer, tropics has maximum at 15–25 km above surface (the high-altitude tropical (HATDM)). The HATDM appears have increased significantly altitude middle late 29. gradually decayed 28. Interannual may be connected with interannual storm activity.