Acoustic-backscatter data from Floras Lake, Oregon, June 2018
This portion of the USGS data release presents acoustic-backscatter data collected during surveys performed in Floras Lake, Oregon in June 2018 (USGS Field Activity Number 2018-636-FA). Lake bed backscatter data were collected using a personal watercraft (PWC) equipped with a sidescan sonar system and global navigation satellite system (GNSS) receivers. The sonar system consisted of a Tritech Starfish 990F with a 1-MHz transducer and a 0.3-degree horizontal beam width. Output from the GNSS receivers and sonar system were combined in real time on the PWC by a computer running HYPACK hydrographic survey software. Navigation information was displayed on a video monitor, allowing PWC operators to navigate along survey lines at speeds of 2 to 3 m/s. Survey-grade positions of the PWCs were achieved with a single-base station and differential post-processing. Positioning data from the GNSS receivers were post-processed using Waypoint Grafnav to apply differential corrections from a GNSS base station with known horizontal and vertical coordinates relative to the North American Datum of 1983.
Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "PCMSC Science Data Coordinator",
"@type": "vcard:Contact",
"hasEmail": "mailto:pcmsc_data@usgs.gov"
}
|
| description | This portion of the USGS data release presents acoustic-backscatter data collected during surveys performed in Floras Lake, Oregon in June 2018 (USGS Field Activity Number 2018-636-FA). Lake bed backscatter data were collected using a personal watercraft (PWC) equipped with a sidescan sonar system and global navigation satellite system (GNSS) receivers. The sonar system consisted of a Tritech Starfish 990F with a 1-MHz transducer and a 0.3-degree horizontal beam width. Output from the GNSS receivers and sonar system were combined in real time on the PWC by a computer running HYPACK hydrographic survey software. Navigation information was displayed on a video monitor, allowing PWC operators to navigate along survey lines at speeds of 2 to 3 m/s. Survey-grade positions of the PWCs were achieved with a single-base station and differential post-processing. Positioning data from the GNSS receivers were post-processed using Waypoint Grafnav to apply differential corrections from a GNSS base station with known horizontal and vertical coordinates relative to the North American Datum of 1983. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Digital Data",
"format": "XML",
"accessURL": "https://doi.org/10.5066/P9FQQ5JN",
"mediaType": "application/http",
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{
"@type": "dcat:Distribution",
"title": "Original Metadata",
"format": "XML",
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"description": "The metadata original format",
"downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.5e8bcdb082cee42d13444321.xml"
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]
|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_5e8bcdb082cee42d13444321 |
| keyword |
[
"CMHRP",
"Cape Blanco",
"Coastal and Marine Hazards and Resources Program",
"Curry County",
"Echo Sounders",
"Floras Lake",
"GPS (Global Positioning System)",
"GPS measurement",
"Global Positioning System (GPS) observations",
"PCMSC",
"Pacific Coastal and Marine Science Center",
"State of Oregon",
"U.S. Geological Survey",
"USGS",
"USGS:5e8bcdb082cee42d13444321",
"geoscientificInformation",
"lake bed",
"lakebed acoustic reflectivity",
"lakebed characteristics",
"substrate"
]
|
| modified | 2023-02-13T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -124.5099660, 42.8841060, -124.4960940, 42.9029970 |
| theme |
[
"Geospatial"
]
|
| title | Acoustic-backscatter data from Floras Lake, Oregon, June 2018 |
