700kHz Bathymetric Slope of select Rock Outcrops of the St. Croix River, May 2021
This dataset is a digital surface model of the slope for six sites where known rock structures exist in the St. Croix River. Slope is the gradient, or rate of maximum change in elevation, and is derived from the DEM. Slope measures will be used for investigating the use of hydroacoustic technologies for quantifying habitat for imperiled mussels Spectaclecase (Margaritifera monodonta) and Salamander (Simpsonaias ambigua) typically associated with rock structures (e.g., wing dams, revetment) in rivers. Slope is a driver of energy below the water and influences biotic diversity, distribution, and the functional traits of those biota. Slope is expressed in degrees; it calculates the maximum rate of change in value from one cell to its neighbors. The lower the slope value, the flatter the terrain; the higher the slope value, the steeper the terrain. Multibeam sonar data were collected using a Norbit integrated wide band multibeam system compact (iWBMSc) sonar unit. All hydroacoustic data were collected in early May of 2021, and the slope rasters are provided in GeoTiff format.
Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "Jenny L Hanson",
"@type": "vcard:Contact",
"hasEmail": "mailto:jhanson@usgs.gov"
}
|
| description | This dataset is a digital surface model of the slope for six sites where known rock structures exist in the St. Croix River. Slope is the gradient, or rate of maximum change in elevation, and is derived from the DEM. Slope measures will be used for investigating the use of hydroacoustic technologies for quantifying habitat for imperiled mussels Spectaclecase (Margaritifera monodonta) and Salamander (Simpsonaias ambigua) typically associated with rock structures (e.g., wing dams, revetment) in rivers. Slope is a driver of energy below the water and influences biotic diversity, distribution, and the functional traits of those biota. Slope is expressed in degrees; it calculates the maximum rate of change in value from one cell to its neighbors. The lower the slope value, the flatter the terrain; the higher the slope value, the steeper the terrain. Multibeam sonar data were collected using a Norbit integrated wide band multibeam system compact (iWBMSc) sonar unit. All hydroacoustic data were collected in early May of 2021, and the slope rasters are provided in GeoTiff format. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Digital Data",
"format": "XML",
"accessURL": "https://doi.org/10.5066/P9EUMCSF",
"mediaType": "application/http",
"description": "Landing page for access to the data"
},
{
"@type": "dcat:Distribution",
"title": "Original Metadata",
"format": "XML",
"mediaType": "text/xml",
"description": "The metadata original format",
"downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.6359ae67d34ebe442503ebcd.xml"
}
]
|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_6359ae67d34ebe442503ebcd |
| keyword |
[
"Minnesota",
"Rock Outcrop",
"Rock Substrate",
"St. Croix River",
"USGS-EMA-LOW-SB SMC: Freshwater mussels",
"USGS:6359ae67d34ebe442503ebcd",
"Wisconsin",
"acoustic doppler current profiling",
"bathymetry measurement",
"benthic ecosystems",
"endangered species",
"image mosaics",
"rivers",
"sea-floor acoustic reflectivity",
"sidescan sonar"
]
|
| modified | 2025-02-27T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -92.76360, 45.21660, -92.68307, 45.36807 |
| theme |
[
"Geospatial"
]
|
| title | 700kHz Bathymetric Slope of select Rock Outcrops of the St. Croix River, May 2021 |
