Fan and Blotch Catalogs in the Martian South Pole

Abstract

This dataset comprises comprehensive catalogs of CO₂ jet deposit features—fans and blotches—captured at the Martian South Pole. Derived from High-Resolution Imaging Science Experiment (HiRISE) imagery onboard the Mars Reconnaissance Orbiter (MRO), the catalogs were developed as part of a thesis exploring seasonal sublimation-driven processes and their implications for Martian surface-atmosphere interactions. The data was created through an extensive workflow, including contributions from the citizen science project Planet Four, advanced density-based clustering (DBSCAN), and ground-projection techniques to generate geographic coordinates. Each entry includes detailed metadata such as location, morphology, orientation, and classification into either fan or blotch types. Additionally, we also provide multiple catalogs including more metadata. The dataset serves as a vital resource for planetary scientists, atmospheric modelers, and researchers studying Martian polar dynamics. It provides foundational data for investigating surface-atmosphere coupling, wind patterns, and the spatial-temporal behavior of seasonal CO₂ jet deposits.