Data

Grand Falls Dune Field (GFDF) on the Navajo Nation (70 km NE of Flagstaff, AZ) is an active, bimodal dune system in both grain size and composition. Felsic grains derive from the Little Colorado River, while mafic (basaltic) grains are sourced locally from nearby cinder cones, making GFDF an excellent terrestrial analog for dune fields on Mars, Venus, and Titan. A long‑term...

Jupiter’s moon Europa and Saturn’s moon Enceladus have many commonalities; however, the surfaces of the two moons bear little resemblance to each other. Significantly, although both moons show ample evidence of lithospheric extension (e.g., rifting), only Enceladus has obvious features formed by lithospheric shortening. We hypothesize that this difference is primarily caused by the...

NASA’s lunar exploration objectives, which include both robotic and human missions to the surface, require data products with high spatial resolution and accuracy. Using rigorous photogrammetric methods, we have co-aligned thousands of high-resolution images from the Lunar Reconnaissance Orbiter Camera (LROC) Narrow Angle Camera (NAC) [Robbinson et al. 2010] of the lunar north and south...

The flood model GeoClaw, a program that simulates shallow surface flows by solving the 2D depth-averaged shallow water equations for flow, was used to assess potential downstream flooding risk post-asteroid-impact. The examined hypothetical impact scenarios were derived from the NASA PAIR 2025 Planetary Defense Conference (PDC) risk corridor during Epoch 1: impact energy averages between...

This dataset provides observations of meter-scale bright patches near the north and south poles of Mars in summertime images from the Mars Reconnaissance Orbiter High Resolution Imaging Science Experiment (HiRISE).

Grand Falls dune field (GFDF) is located on the Navajo Nation, ~70 km NE of Flagstaff, AZ. This active dune field displays a range of morphologies, including barchans, dome dunes, smaller dunes, and ripples, and is bimodal both in mineralogical composition and grain size distribution. The felsic component is likely derived from the Little Colorado River, and the mafic component (basaltic...

This dataset contains shapefiles that describe topographic long profiles of recent Martian gully flows recording various information about the flow and host gully. Each profile has some or all of the following: a profile of the active flow, a profile of the full gully, the location of the channel mouth, a profile recording different types of activity, a shapefile with locations of...

In order to support the landing and operations of NASA Mars 2020 Perseverance rover, the U.S. Geological Survey (USGS) previously generated Digital Elevation Model (DEM) and orthoimage mosaics of the floor of Jezero crater. Over four years of operations, Perseverance has collected numerous samples while climbing the western rim of Jezero and has travelled beyond the extent of the...

Metadata on this main landing page applies to all DTMs listed under Child Items, apart from USGS-made DTMs [HRSC DTM_75 (centered at -28.8N, 78.6E)_USGS and CTM DTM over "Crater L" (centered at -23.1N, 74.3E)_USGS]. Metadata associated with USGS-made DTMs are located with DTM files under their respective Child Item.

USGS is assessing the feasibility of map projections and grid systems for lunar surface operations. We propose developing a new Lunar Transverse Mercator (LTM), the Lunar Polar Stereographic (LPS), and the Lunar Grid Reference Systems (LGRS). We have also designed additional grids to meet NASA requirements for astronaut navigation, referred to as LGRS in Artemis Condensed Coordinates...

USGS is assessing the feasibility of map projections and grid systems for lunar surface operations. We propose developing a new Lunar Transverse Mercator (LTM), the Lunar Polar Stereographic (LPS), and the Lunar Grid Reference Systems (LGRS). We have also designed additional grids designed to NASA requirements for astronaut navigation, referred to as LGRS in Artemis Condensed Coordinates...

USGS is assessing the feasibility of map projections and grid systems for lunar surface operations. We propose developing a new Lunar Transverse Mercator (LTM), the Lunar Polar Stereographic (LPS), and the Lunar Grid Reference Systems (LGRS). We have also designed additional grids designed to NASA requirements for astronaut navigation, referred to as LGRS in Artemis Condensed Coordinates...