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Filters Date Range Past year (1) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts David J Dean Timothy N Titus Astrogeology Science Center Glen Cushing Amber L Gullikson More... Categories Data (1) Tag Types Theme (4) Place (4) USGS Scientific Topic Keyword (1) Harvest Set (1) Tag Schemes USGS Thesaurus (2) None (1) Geographic Names Information System (GNIS) (1) Geographic Names Information System (2) ISO 19115 Topic Category (3) The National Map Collection Thesaurus (2) The National Map Product Format Thesaurus (2) More... View Results as: JSON ATOM CSV

USGS 1:24000-scale Quadrangle for Grand Falls, AZ 1969 USGS Historical Quadrangle in GeoPDF. Tags: 7.5 x 7.5 minute, AZ, Downloadable Data, GeoPDF, GeoTIFF, All tags... Grand Falls, Historical Topographic Maps, Historical Topographic Maps 7.5 x 7.5 Minute Map Series, Map, imageryBaseMapsEarthCover, Fewer tags Imagery, photogrammetry, and meteorological data from December 2021 to December 2022, Grand Falls Dune Field, Arizona 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, smaller dunes, and ripples, and is bimodal in composition. The felsic component is likely derived from the Little Colorado River, and the mafic component (basaltic grains) is locally sourced from nearby cinder cones [1]. GFDF is an excellent analog site for both active dunes on Mars and other planetary bodies that have dune-like features (e.g., Venus and Titan). We have set up a meteorological station within the dune field that records temperature, barometric pressure, relative humidity, wind direction, wind speed, solar radiation, and precipitation... Categories: Data; Tags: Arizona, Climatology, Grand Falls, Navajo Indian Reservation, Planetary Sciences, All tags... Sedimentology, USGS Science Data Catalog (SDC), atmospheric and climatic processes, atmospheric properties, climatologyMeteorologyAtmosphere, digital elevation models, dunes, field inventory and monitoring, geoscientificInformation, Fewer tags USGS 1:24000-scale Quadrangle for Grand Falls, AZ 1969 USGS Historical Quadrangle in GeoPDF. Tags: 7.5 x 7.5 minute, AZ, Downloadable Data, GeoPDF, GeoTIFF, All tags... Grand Falls, Historical Topographic Maps, Historical Topographic Maps 7.5 x 7.5 Minute Map Series, Map, imageryBaseMapsEarthCover, Fewer tags Geomorphic Change Data for the Little Colorado River, Arizona, USA These data include geospatial files (shapefiles and orthorectified raster images) and an input hydrograph (csv) for a 1-dimensional unsteady hydrologic model. Shapefiles consist of active channel boundarys and channel centerlines of six reaches of the LCR beginning ~4.5 km above Grand Falls, AZ, and ending ~12.8 km downstream from Cameron, AZ. These reaches are (1) the ~4.5 km above Grand Falls reach, (2) the 1.5km below Grand Falls reach, (3) the ~18.8 km Black Falls reach, (4) the ~16.5 km above Cameron reach, (5) the ~4.7 km Cameron to Moenkopi reach, and (6) the ~8.1 km below Moenkopi reach. Raster images consist of orthorectified aerial photograph mosaics between 1933/34 and 1992. Scans of the images were acquired... Tags: Arizona, Black Falls, Cameron, Grand Falls, Little Colorado River, All tags... Little Colorado River Basin, Northern Arizona, biogeomorphic feedbacks, channel narrowing, dryland rivers, floods, geomorphology, geoscientificInformation, hydrology, imageryBaseMapsEarthCover, inlandWaters, riparian ecosystems, riparian vegetation, river systems, vegetation, Fewer tags