Description
This portion of the data release presents the locations of the temporary ground control points (GCPs) used for the structure-from-motion (SfM) processing of the imagery collected during the Unmanned Aerial System (UAS) survey on of the Liberty Island Conservation Bank Wildlands restoration site in the Sacramento-San Joaquin Delta on 2018-10-23. The GCPs were used to establish ground control for the survey and consisted of 24 small (80 x 80 centimeter) square tarps with black-and-white cross patterns placed on the ground surface throughout the mapping area during the survey. The GCP positions were measured using RTK GPS, with corrections from a GPS base station located approximately 3 kilometers south of the study area. The GCP positions are presented in a comma-delimited text file.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| Original Metadata | XML | The metadata original format | Open resource |
| Digital Data | XML | Landing page for access to the data | Open resource |
Tags
- aerial-photography
- altimetry
- bathymetry-and-elevation
- cache-slough
- chmrp
- coastal-and-marine-hazards-and-resources-program
- elevation
- fragile-ecosystems
- geomorphology
- geoscientificinformation
- geospatial-datasets
- image-mosaics
- liberty-island
- pacific-coastal-and-marine-science-center
- pcmsc
- photography
- remote-sensing
- sacramento-river
- sacramento-river-deep-water-ship-channel
- sacramento-san-joaquin-delta
- san-joaquin-river
- state-of-california
- structure-from-motion
- topographic-maps
- topography
- uas
- unmanned-aerial-system
- u-s-geological-survey
- usgs
- usgs-5f24b3e582cef313ed979696
- wetland-restoration