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Digital Shoreline Analysis System version 4.3 transects and short-term (1970-2009) end point shoreline change statistics within the Martha's Vineyard coastal region including the Vineyard Sound-, Nantucket Sound- and Atlantic Ocean- facing coasts of Martha's Vineyard and Nomans Land (MarthasVineyard_transects_rates_STepr.shp)

Organization: Department of the Interior
Updated: 20211116 | Harvested: July 18, 2025 at 10:18 AM

Due to continued coastal population growth and increased threats of erosion, current data on trends and rates of shoreline movement are required to inform shoreline and floodplain management. The...

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Boomer Seismic Survey Tracklines - Lake Mead 2001

Organization: Department of the Interior
Updated: 20240318 | Harvested: July 16, 2025 at 06:21 AM

Lake Mead is a large interstate reservoir located in the Mojave Desert of southeastern Nevada and northwestern Arizona. It was impounded in 1935 by the construction of Hoover Dam and is one of a...

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Digital Shoreline Analysis System version 4.3 transects and long-term linear regression shoreline change statistics for all data available in the Buzzards Bay coastal region from Nobska Point in Woods Hole to Westport at the Rhode Island border (BuzzardsBay_transects_rates_LTw.shp)

Organization: Department of the Interior
Updated: 20211116 | Harvested: July 16, 2025 at 06:18 AM

Due to continued coastal population growth and increased threats of erosion, current data on trends and rates of shoreline movement are required to inform shoreline and floodplain management. The...

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Long-term and short-term shoreline change rates for the Outer Cape Cod, Massachusetts, calculated with and without the proxy-datum bias using the Digital Shoreline Analysis System version 5.1

Organization: Department of the Interior
Updated: 20240319 | Harvested: July 16, 2025 at 02:04 AM

The Massachusetts Office of Coastal Zone Management launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast and support local land-use decisions. Trends of...

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Long-term and short-term shoreline change rates for the region north of Boston, Massachusetts, calculated with and without the proxy-datum bias using the Digital Shoreline Analysis System version 5.1

Organization: Department of the Interior
Updated: 20240319 | Harvested: July 16, 2025 at 02:05 AM

The Massachusetts Office of Coastal Zone Management launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast and support local land-use decisions. Trends of...

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Digital Shoreline Analysis System version 4.3 transects and long-term linear regression shoreline change statistics for all data available within the South Cape Cod coastal region from Stage Harbor Light in Chatham to Nobska Point in Woods Hole (SouthCapeCod_transects_rates_LTw.shp)

Organization: Department of the Interior
Updated: 20211116 | Harvested: July 16, 2025 at 06:19 AM

Due to continued coastal population growth and increased threats of erosion, current data on trends and rates of shoreline movement are required to inform shoreline and floodplain management. The...

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Long-term and short-term shoreline change rates for the region of Nantucket, Massachusetts, calculated with and without the proxy-datum bias using the Digital Shoreline Analysis System version 5.1

Organization: Department of the Interior
Updated: 20240319 | Harvested: July 16, 2025 at 02:03 AM

The Massachusetts Office of Coastal Zone Management launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast and support local land-use decisions. Trends of...

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Long-term and short-term shoreline change rates for the region of the Elizabeth Islands, Massachusetts, calculated with and without the proxy-datum bias using the Digital Shoreline Analysis System version 5.1

Organization: Department of the Interior
Updated: 20240319 | Harvested: July 16, 2025 at 02:05 AM

The Massachusetts Office of Coastal Zone Management launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast and support local land-use decisions. Trends of...

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Video transects of the sea floor on Stellwagen Bank during U.S. Geological Survey field activity 2014-070-FA, aboard the R/V Auk, December 12, 2014

Organization: Department of the Interior
Updated: 20240318 | Harvested: July 16, 2025 at 06:17 AM

This field activity is part of the effort to map geologic substrates of the Stellwagen Bank National Marine Sanctuary region off Boston, Massachusetts. The overall goal is to develop...

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1-m interval contours of smoothed multibeam bathymetry in western Massachusetts Bay map Quadrangles 1-3 (WMB_1MCTR.SHP)

Organization: Department of the Interior
Updated: 20240318 | Harvested: July 16, 2025 at 06:14 AM

The U.S. Geological Survey has conducted geologic mapping to characterize the sea floor offshore of Massachusetts. The mapping was carried out using a Simrad Subsea EM 1000 Multibeam Echo Sounder...

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Ship Tracklines for Seismic-Reflection Data Collected in Western Rhode Island Sound (N80_1LINES.SHP)

Organization: Department of the Interior
Updated: 20211116 | Harvested: July 16, 2025 at 06:17 AM

During 1980, a seismic-reflection survey utilizing Uniboom seismics was conducted by the U.S. Geological Survey (USGS) in western Rhode Island Sound aboard the Research Vessel Neecho. This cruise...

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CENCAL_BIASVALUES - Central California Shoreline Bias Values

Organization: Department of the Interior
Updated: 20211025 | Harvested: July 16, 2025 at 06:14 AM

The USGS has produced a comprehensive database of digital vector shorelines by compiling shoreline positions from pre-existing historical shoreline databases and by generating historical and...

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Shot-point calibrated trackline navigation for chirp seismic data collected in Indian River Bay, Delaware, on April 13, 2010, on U.S. Geological Survey Field Activity 2010-006-FA (IR_ROUTES_CALIB.SHP, Geographic, WGS 84)

Organization: Department of the Interior
Updated: 20240318 | Harvested: July 16, 2025 at 06:12 AM

A geophysical survey to delineate the fresh-saline groundwater interface and associated sub-bottom sedimentary structures beneath Indian River Bay, Delaware, was carried out in April 2010. This...

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Long-term and short-term shoreline change rates for the region of Cape Cod Bay, Massachusetts, calculated with and without the proxy-datum bias using the Digital Shoreline Analysis System version 5.1

Organization: Department of the Interior
Updated: 20240319 | Harvested: July 16, 2025 at 03:49 AM

The Massachusetts Office of Coastal Zone Management launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast and support local land-use decisions. Trends of...

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Long-term and short-term shoreline change rates for the region of Buzzards Bay, Massachusetts, calculated with and without the proxy-datum bias using the Digital Shoreline Analysis System version 5.1

Organization: Department of the Interior
Updated: 20240319 | Harvested: July 16, 2025 at 02:04 AM

The Massachusetts Office of Coastal Zone Management launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast and support local land-use decisions. Trends of...

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Seismic Trackline Navigation: USF navigation of seismic data collected in the Pulley Ridge area in 1996 and 2001

Organization: Department of the Interior
Updated: 20240318 | Harvested: July 16, 2025 at 06:02 AM

These seismic data were collected to infer the paleodepositional environment of Pulley Ridge through seismic facies analysis. Without actual rock cores, remote sensing is the next best tool. It...

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