Presentation #113.04 in the session Martian Atmospheric Models, Local to Global.
Large regional and global dust events are associated with dramatic alterations in the Martian atmosphere, including widespread temperature and circulation changes; therefore, documenting dust storm evolution necessitates defining the full spatial extent of dust coverage on each sol. Currently, the Mars Dust Activity Database (MDAD, v1.0) includes the centroids and identification for approximately 15,000 dust storm instances from Mars Year (MY) 24 to 32 and is organized into dust storm members—the multi-sol progression of a single instance—and dust storm sequences—collections of many members that follow a similar trajectory over many sols. However, the boundaries of each dust storm instance in the MDAD have not yet been published. Here, we present publication of the full dust storm boundaries as MDAD (v1.1) and document best practices for its use. To demonstrate the versatility of the dataset, we explore several specific use cases. Specifically, dust activity is compared to extratropical cyclone evolution from the Ensemble Mars Atmospheric Reanalysis System to examine a case of dust storms flushing across the equator.