Global catalog of alluvial fans and other fan-shaped features on Mars, with morphology characteristics

Alluvial fans on Mars record evidence of depositional environments that
represent the final era of potential habitability on the Martian surface.
Alluvial fan deposits can often look similar to deltaic or fluvial systems
in visible remote sensing images but are firmed in depositional and
climatic environments that are distinct from those that lead to other
radial depositional features. In order to better constrain the regional
and global depositional environments and further inform the analysis of
the sedimentary history of Mars, this study expands the global catalog of
alluvial fans on Mars by adding newly identified features and
characterizing all new and previously identified features based on
morphologic parameters. Based on how closely they fit the morphologic
definition of alluvial fans, as established by terrestrial sedimentology,
each feature is classified as either an alluvial fan or another
depositional feature. The .csv files made available here contain the full
global database of features investigated in the referenced paper (Mondro
et al., 2022). Five different .csv files are included, divided according
to feature classification category based on the morphological parameters
described in Mondro, et al. 2022.  The five classification
categories are: alluvial fan, possible alluvial fan, non-alluvial radial
feature (NARF), small feature, and non-fan. For each individual
depositional feature, the database contains the lat/long location of the
fan apex, a reference to the first publication to identify it, the results
of the characterization parameters, and the final morphologic
classifications. The characterization parameters are planform shape,
radius (meters), average radial slope (degrees), adjusted average radial
slope (degrees), and radial profile shape. When a parameter is listed as
NA, the morphologic categorization for that class of feature did not
include that specific parameter. See referenced paper for more detail on
methodology and discussion of results: Mondro, C.A., J.E. Moersch, C.M.
Fedo. An updated global survey of alluvial fans on Mars: Distinguishing
alluvia fans from other fan-shaped features through morphologic
characterization. Icarus, 398C. doi: 10.1016/j.icarus.2022.115238. Please
reference the above paper when using this dataset.