This investigation focuses on the circulation of major Martian volatiles, carbon dioxide and water, and characterizes their role on the Martian environment. In the spatial and temporal scale the atmospheric phenomena ranging from local and diurnal effects to global and seasonal variation will be explored. The observations by the currently ongoing Mars Science Laboratory mission as well as other in situ and remote data sets will offer an ample selection of study material. Thorough analysis and validation of the the MSL meteorological data is the first major task of this project. Thereafter major individual science objectives are a) the investigation of the Martian global atmospheric pressure anomaly detected by MSL, b) study of the previously unknown local pressure oscillations detected by MSL and c)
analysis of the first-ever in situ atmospheric humidity data measured by MSL. Scientific support for the DREAMS/Exomars-2016, Mars-2020 and Metnet missions will give a mission impact.