AKA: Whiskeytown reservoir
Other ID: none
Status: Completed
Organization(s): USGS, Pacific Coastal and Marine Science Center
Funding Program(s): Sediment Transport in Coastal Environments (ZP00FDB)
Principal Investigator(s): Amy East
Affiliate Investigator(s):
Information Specialist(s): Peter Dartnell
Data Type(s): Imagery: Photo, Location-Elevation: Navigation, Sampling: Geology, Sonar: Interferometric
Scientific Purpose/Goals: Map bathymetry and sediment thickness of Whiskeytown reservoir to assess post-fire runoff after Carr Fire, major disaster of summer 2018
Vehicle(s): F350 G43-2783H
Start Port/Location: Whiskeytown National Recreation Area
End Port/Location: Whiskeytown National Recreation Area
Start Date: 2020-09-13
End Date: 2020-09-19
Equipment Used: camera, POS MV, Van Veen, SWATH plus-M
Information to be Derived: Bathymetric surface map of reservoir; sediment samples to characterize surface material (0-10 cm deep)
Summary of Activity and Data Gathered: Bathymetry data successfully collected, sediment samples processed by PCMSC sediment lab.
Staff: Peter Dal Ferro, Peter Dartnell, Rachel Marcuson
Affiliate Staff:
Notes: Entries for this field activity are based on entries from Field Activity 2018-686-FA
Location:
Whiskeytown reservoir, northern California
| Boundaries | |||
|---|---|---|---|
| North: 40.65396202 | South: 40.59500793 | West: -122.60499716 | East: -122.51648694 |
Platform(s):
15-ft Whaler |
Logan, J.B., Dartnell, P., East, A.E., and Ritchie, A.C., 2020, Bathymetry, topography and orthomosaic imagery for Whiskeytown Lake, northern California (ver. 2.0, July 2021): U.S. Geological Survey data release, https://doi.org/10.5066/P9HEDYNT.
| Survey Equipment | Survey Info | Data Type(s) | Data Collected |
|---|---|---|---|
| camera | --- | Photo | Topographic digital surface model (DSM) for Whiskeytown Lake and surrounding area, 2020-11-10 (This portion of the data release presents a digital surface model (DSM) and hillshade of Whiskeytown Lake and the surrounding area derived from Structure from Motion (SfM) processing of aerial imagery acquired on 2020-11-10. Unlike a digital elevation model (DEM), the DSM represents the elevation of the highest object within the bounds of a cell. Vegetation, buildings and other objects have not been removed from the data. In addition, data artifacts resulting from noise and vegetation in the original imagery have not been removed. However, in unvegetated areas such as reservoir shorelines and deltas, the DSM is equivalent to a DEM because it represents the ground surface elevation. The raw imagery used to create this DSM was acquired from a manned aircraft on 2020-11-10. The acquisition flight was conducted by The 111th Group Aerial Photography, using a Hasselblad A6D-100c camera. The imagery was acquired from an approximate altitude of 880 meters (2,900 feet) above ground level, to produce a nominal ground sample distance (pixel size) of 5 centimeters (2 inches). An onboard dual-frequency GPS receiver was used to record the precise time and position of each image. Coordinates for ground control points consisting of photo-identifiable objects were measured independently using survey-grade post-processed kinematic (PPK) GPS.) Orthomosaic imagery for Whiskeytown Lake and surrounding area, northern California, 2020-11-10 (This portion of the data release presents an RGB orthomosaic image of Whiskeytown Lake and the surrounding area derived from Structure from Motion (SfM) processing of aerial imagery acquired on 2020-11-10. The orthomosaic is available in a high-resolution 5-centimeter (cm) version, as well as a medium-resolution 25 cm version. The high-resolution version is divided into two tiles (east and west) to reduce file download sizes. All imagery is provided in a three-band cloud optimized GeoTIFF format, with 8-bit unsigned integer values compressed using high-quality JPEG compression. The raw imagery used to create the orthomosaic image was acquired from a manned aircraft on 2020-11-10. The acquisition flight was conducted by The 111th Group Aerial Photography, using a Hasselblad A6D-100c camera. The imagery was acquired from an approximate altitude of 880 meters (2,900 feet) above ground level, to produce a nominal ground sample distance (pixel size) of 5 centimeters (2 inches). An onboard dual-frequency GPS receiver was used to record the precise time and position of each image. Coordinates for ground control points consisting of photo-identifiable objects were measured independently using survey-grade post-processed kinematic (PPK) GPS.) |
| POS MV | --- | Navigation | |
| Van Veen | --- | Biology Geology | |
| SWATH plus-M | --- | Interferometric | Bathymetric data for Whiskeytown Lake, September 2020 (These metadata describe bathymetric data collected during a September 2021 SWATHPlus survey of Whiskeytown Lake, California. Data were collected and processed by the U.S. Geological Survey (USGS), Pacific Coastal and Marine Science Center (PCMSC) during fieldwork activity number 2018-686-FA. The bathymetric data are provided as a GeoTIFF image.) |
