John W Fulton

Surface velocity data acquired from QCam (drone-based Doppler velocity radar) for the Arkansas and South Platte Rivers in Colorado and the Salcha and Tanana Rivers in Alaska

This dataset contains data collected during science flights using the drone-based QCam, which is a Doppler (velocity) radar designed to measure surface velocity and compute river discharge when channel bathymetry is known. Five science flights were conducted on four rivers including the Arkansas and South Platte Rivers in Colorado and the Salcha and Tanana Rivers in Alaska. Data are presented in a comma separated values (CSV) file.

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alaska, Colorado, North America, United States, depth, All tags... drone, remote sensing, river discharge, sUAS, small, unmanned aircraft system, velocity, Fewer tags

Water-surface elevations derived from submersible pressure transducers deployed along the Salcha River, Alaska, July-October 2018

The U.S. Geological Survey deployed seven submersible pressure transducers on the bottom of the Salcha River in July 2018. An additional transducer was left out of the water to correct for barometric pressure fluctuations. At the time of deployment, the bank position near each transducer and the water-surface elevation were measured with Global Navigation Satellite System (GNSS) equipment. The transducers recorded a depth measurement every 15-min until the recovery of five of the seven in October. We adjusted the water elevation measured at deployment by the difference between the depth measured at deployment and each subsequent depth measurement to derive the water-surface elevation at 15-min intervals. The data...

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alaska, USGS Science Data Catalog (SDC), water surface elevation

This data release consists of three child items distinguishing the following types of data: light detection and ranging (lidar) point clouds (LPCs), digital elevation models (DEMs), and snow depth raster maps. These three data types are all derived from lidar data collected on small, uncrewed aircraft systems (sUAS) at study areas in the Upper Colorado River Basin, Colorado, from 2020 to 2022. These data were collected and generated as part of the U.S. Geological Survey's (USGS) Next Generation Water Observing Systems (NGWOS) Upper Colorado River Basin project.

Tags: Bare Earth, Berthoud Pass, Cameron Pass, Colorado, Colorado River, All tags... Devils Thumb, Digital Elevation Model, Fraser, Point Cloud, Ranch Creek Meadow, Snow, Snow Depth, Snow Water Equivalent, USGS Science Data Catalog (SDC), Water Resources, Winter Park, lidar, sUAS, Fewer tags

The U.S. Geological Survey (USGS) is actively investigating the use of innovative remote-sensing techniques to estimate surface velocity and discharge of rivers in ungaged basins and river reaches that lack the infrastructure to install conventional streamgaging equipment. By coupling discharge algorithms and sensors capable of measuring surface velocity, streamgage networks can be established in regions where data collection was previously impractical or impossible. One of the remote-sensing techniques uses a Doppler (velocity) radar (QCam) mounted and integrated on a small unmanned aircraft system (sUAS or drone). QCam measures the along-track surface velocity by spot dwelling in a river cross section at a vertical...

Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alaska, Colorado, North America, USGS Science Data Catalog (SDC), United States, All tags... depth, drone, inlandWaters, remote sensing, river discharge, sUAS, small, unmanned aircraft system, velocity, Fewer tags

Digital Elevation Models (DEMs) Derived from Lidar Point Clouds (LPCs) Collected by Small, Uncrewed Aircraft Systems (sUAS) at Three Study Areas in Colorado, 2020-22

These digital elevation models (DEMs) were generated from light detection and ranging (lidar) point clouds (LPCs) derived from lidar data collected during multiple field campaigns at three study areas near Winter Park, Colorado. Small, uncrewed aircraft systems (sUAS) were used to collect lidar datasets to represent snow-covered and snow-free periods.

Tags: Bare Earth, Berthoud Pass, Colorado, Colorado River, Digital Elevation Model, All tags... Fraser, Snow, Snow Depth, Snow Water Equivalent, Winter Park, lidar, sUAS, Fewer tags