Global Mapping of Lunar Mare Boundaries (65N and 65S)
Polygon vector map of lunar mare. Three image basemaps were used as reference to generate the file. 1) A monochromatic (643nm) LROC WAC image mosaic, optimized for geomorphology, at a resolution of 100 meters/pixel. 2) A second LROC WAC-derived mosaic, generated from a ratio of bands 1 (321nm) and 3 (415nm), in order to isolate surface compositions high in titanium. 3) A Clementine UVVIS color ratio product (Red: 750nm/415nm, Green: 750nm/950nm, Blue: 415nm/750nm) resampled to 1 km/pixel that is used to distinguish between old highlands and younger mare materials. Polygons we digitized at a scale of 1:200,000 and 1:500,000.
Nelson, D. M., Koeber, S. D., Daud, K., Robinson, M. S., Watters, T. R., Banks, M. E., & Williams, N. R. (2014, March). Mapping lunar maria extents and lobate scarps using LROC image products. In Lunar and Planetary Science Conference (Vol. 45, p. 2861).
Polygon shapefiles are available in the IAU Moon 2000 Geographic Coordinate System in both the -180 to 180 and 0 to 360 longitude domains.
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Shapefile Field Descriptions: