{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Shannon R. Fisher", "hasEmail": "mailto:srfisher@usgs.gov"}, "description": "This data release contains 22 horizontal-to-vertical spectral ratio (HVSR) seismic measurements at 21 sites in Franklin County, New York. The HVSR passive seismic method (Lane and others, 2008; Fairchild and others, 2013) is a non-invasive and cost-effective technique for estimating the thickness of unconsolidated sediments over bedrock. This technique uses a single broadband three-component (x, y, and z directions) seismometer to record ambient seismic noise. The ratio of the averaged horizontal (x, y) to vertical (z) frequency spectrum is used to produce a spectral ratio curve and determine a site\u2019s peak resonant frequency. This frequency can be empirically related to sediment thickness using average local sediment shear-wave velocity or using power-law regression analysis calibrated with local site of known depths to bedrock (Ibs-von Seht and Wohlenberg, 1999; Lane and others, 2008; Chandler and others, 2014; Johnson and Lane, 2016). Data were collected at each site for 30 minutes using a Tromino Model TEP-3C three-component seismometer. Raw and processed HVSR data for each HVSR measurement are presented in the attached files. The HVSR data-collection sites are designated by a county sequential numbering systems (FHVSR1, FHVSR2, FHVSR3, etc. where \u201cF\u201d indicates Franklin County).", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P946DA5G", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.642b19b5d34ee8d4add043fc.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_642b19b5d34ee8d4add043fc", "keyword": ["Aquifer", "Bangor", "Bellmont", "Burke", "Constable", "Duane", "Franklin", "Franklin County", "Geology", "Groundwater", "Hydrogeology", "Malone", "New York", "Salmon River", "Seismology", "Trout River", "USGS:642b19b5d34ee8d4add043fc", "United States", "Westville", "environment"], "modified": "2025-07-23T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-74.3870, 44.6231, -74.0742, 44.9348", "theme": ["geospatial"], "title": "Horizontal-to-Vertical Spectral Ratio (HVSR) Measurements and Depth to Bedrock Estimates along the Salmon River Corridor from the Adirondack Foothills to the St. Lawrence Lowlands, Franklin County, New York, 2018-2023"}