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 an unmanned aerial system (UAS) survey of the intertidal zone at West Whidbey Island, WA on 2019-06-04. Twenty-five temporary ground control points (GCPs) were distributed throughout the survey area to establish survey control. The GCPs consisted of a combination of small square tarps with black-and-white cross patterns and "X" marks placed on the ground using temporary chalk. The GCP positions were measured using post-processed kinematic (PPK) GPS, using corrections from a GPS base station located approximately 7 kilometers from 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-and-satellite-photography
- aerial-photography
- altimetry
- bathymetry-and-elevation
- chmrp
- coastal-and-marine-hazards-and-resources-program
- coastal-processes
- elevation
- geomorphology
- geoscientificinformation
- geospatial-datasets
- hastie-lake-county-park
- image-mosaics
- island-county
- orthophotography
- pacific-coastal-and-marine-science-center
- pcmsc
- photography
- remote-sensing
- salish-sea
- sfm
- state-of-washington
- strait-of-juan-de-fuca
- structure-from-motion
- topographic-maps
- topography
- uas
- unmanned-aerial-system
- u-s-geological-survey
- usgs
- usgs-5ef53f0c82ced62aaae6a0c2
- whidbey-island