Imagery, photogrammetry, and meteorological data from December 2022 to April 2023, Grand Falls Dune Field, Arizona

Our goal for this work is to place better constraints on aeolian atmospheric-surface interactions through long-term monitoring of an active, bi-modal dune field located near Grand Falls, Arizona. Grand Falls dune field (GFDF) is located on the Navajo Nation, ~70 km NE of Flagstaff, AZ. This dune field has been monitored since 2013 by the U.S. Geological Survey, and data from each collection year are released as USGS Data Release products. Data described here was collected between December 2022 and April 2023.
Our instruments are set up near an active ripple field in the GFDF. The instrument array includes a meteorological weather station that records temperature, barometric pressure, relative humidity, wind direction, wind speed, solar radiation, and precipitation every 15 minutes, and seven BlazeVideo cameras situated surrounding the ripple field that take images every 10 minutes to capture ripple migration. In addition to the deployed instruments, each time we visit the field site we also image the ripple field using a Nikon D750 (35 mm) camera. This data is processed using the software Agisoft Metashape Professional to create digital elevation models of the ripple field.  

Fieldwork on the Navajo Nation was conducted under a permit from the Navajo Nation Minerals Department. Any persons wishing to conduct geologic investigations on the Navajo Nation must first apply for and receive a permit from the Navajo Nation Minerals Department, P.O. Box 1910, Window Rock, Arizona 86515, and telephone # (928) 871-6587.