Skip to main content
U.S. flag

An official website of the United States government

Multimedia

Multimedia products produced by Woods Hole Coastal and Marine Science Center staff

Images

ocean, beach, and blue sky with clouds
Puerto Rico beach
Puerto Rico beach
Puerto Rico beach

Scenic photo of Domes Beach in Rincon, Puerto Rico. Photo credit: Emily Himmelstoss.

DSAS v6.0 infographic
DSAS v6.0 Infographic
DSAS v6.0 Infographic
DSAS v6.0 Infographic

The Digital Shoreline Analysis System (DSAS) version 6 is a standalone application that calculates shoreline or boundary change over time. The GIS of a user’s choice is used to prepare the data for DSAS.  Like previous versions, DSAS v.6 enables a user to calculate rate-of-change statistics from multiple historical shoreline positions.

The Digital Shoreline Analysis System (DSAS) version 6 is a standalone application that calculates shoreline or boundary change over time. The GIS of a user’s choice is used to prepare the data for DSAS.  Like previous versions, DSAS v.6 enables a user to calculate rate-of-change statistics from multiple historical shoreline positions.

infographic showing transects signaling coastal change, onshore and offshore baselines
DSAS
DSAS
DSAS

DSAS generates transects that are cast perpendicular to the reference baseline to intersect shorelines at a user-specified spacing alongshore. Please note that the figure above illustrates the placement of both onshore and offshore baselines as examples. In DSAS v6.0 all baselines in a file must be placed either offshore or onshore, not combined.

DSAS generates transects that are cast perpendicular to the reference baseline to intersect shorelines at a user-specified spacing alongshore. Please note that the figure above illustrates the placement of both onshore and offshore baselines as examples. In DSAS v6.0 all baselines in a file must be placed either offshore or onshore, not combined.

DSAS interface
DSAS v6.0 Interface
DSAS v6.0 Interface
DSAS v6.0 Interface

The Digital Shoreline Analysis System (DSAS) version 6 is a standalone application that calculates shoreline or boundary change over time. The GIS of a user’s choice is used to prepare the data for DSAS.  Like previous versions, DSAS v.6 enables a user to calculate rate-of-change statistics from multiple historical shoreline positions.

The Digital Shoreline Analysis System (DSAS) version 6 is a standalone application that calculates shoreline or boundary change over time. The GIS of a user’s choice is used to prepare the data for DSAS.  Like previous versions, DSAS v.6 enables a user to calculate rate-of-change statistics from multiple historical shoreline positions.

DSAS v6.0 interface, sample data
DSAS v6.0 sample data
DSAS v6.0 sample data
DSAS v6.0 sample data

The Digital Shoreline Analysis System (DSAS) version 6 is a standalone application that calculates shoreline or boundary change over time. The GIS of a user’s choice is used to prepare the data for DSAS.  Like previous versions, DSAS v.6 enables a user to calculate rate-of-change statistics from multiple historical shoreline positions.

The Digital Shoreline Analysis System (DSAS) version 6 is a standalone application that calculates shoreline or boundary change over time. The GIS of a user’s choice is used to prepare the data for DSAS.  Like previous versions, DSAS v.6 enables a user to calculate rate-of-change statistics from multiple historical shoreline positions.

yellow and red vertical lines equally spaced with a green curved line going from the top left corner to almost bottom right
DSAS Software
DSAS Software
DSAS Software

The Digital Shoreline Analysis System (DSAS) version 6 is a standalone application that calculates shoreline or boundary change over time. The GIS of a user’s choice is used to prepare the data for DSAS.  Like previous versions, DSAS v.6 enables a user to calculate rate-of-change statistics from multiple historical shoreline positions.

The Digital Shoreline Analysis System (DSAS) version 6 is a standalone application that calculates shoreline or boundary change over time. The GIS of a user’s choice is used to prepare the data for DSAS.  Like previous versions, DSAS v.6 enables a user to calculate rate-of-change statistics from multiple historical shoreline positions.

Videos

Image of a group of technicians next to a river. Text: The USGS Northeast Region: Delivering Science for Better Decisions. The USGS Northeast Region: Delivering Science for Better Decisions
The USGS Northeast Region: Delivering Science for Better Decisions
Coastal Science Navigator home page Introduction to the USGS Coastal Science Navigator
Introduction to the USGS Coastal Science Navigator
Introduction to the USGS Coastal Science Navigator

The Coastal Science Navigator is intended to help users discover USGS Coastal Change Hazards information, products, and tools relevant to their scientific or decision-making needs.

Earth colored map of North America has the coastlines of the U.S. highlighted in bright blue Flyover of the U.S. Coastline
Flyover of the U.S. Coastline
Flyover of the U.S. Coastline

Our Nation’s coastlines are almost 100,000 miles long. These extensive coastal areas stretch from Maine’s Atlantic shores in the northeast, south along the shores of the Gulf of Mexico and insular areas in the Caribbean.

Our Nation’s coastlines are almost 100,000 miles long. These extensive coastal areas stretch from Maine’s Atlantic shores in the northeast, south along the shores of the Gulf of Mexico and insular areas in the Caribbean.

Group of smiling people on sandy beach with ocean in the background Assateague Island National Seashore
Assateague Island National Seashore
Assateague Island National Seashore

sUAS coastal Imagery collected by the Woods Hole Coastal and Marine Science Center Aerial Imaging and Mapping group (AIM) at Assateague Island National Seashore October 10-14th, 2022.

sUAS coastal Imagery collected by the Woods Hole Coastal and Marine Science Center Aerial Imaging and Mapping group (AIM) at Assateague Island National Seashore October 10-14th, 2022.

Group of smiling people on sandy beach with ocean in the background Assateague Island National Seashore
Assateague Island National Seashore
Assateague Island National Seashore

sUAS coastal Imagery collected by the Woods Hole Coastal and Marine Science Center Aerial Imaging and Mapping group (AIM) at Assateague Island National Seashore October 10-14th, 2022.

sUAS coastal Imagery collected by the Woods Hole Coastal and Marine Science Center Aerial Imaging and Mapping group (AIM) at Assateague Island National Seashore October 10-14th, 2022.

Group of smiling people on sandy beach with ocean in the background Assateague Island National Seashore
Assateague Island National Seashore
Assateague Island National Seashore

sUAS coastal Imagery collected by the Woods Hole Coastal and Marine Science Center Aerial Imaging and Mapping group (AIM) at Assateague Island National Seashore October 10-14th, 2022.

sUAS coastal Imagery collected by the Woods Hole Coastal and Marine Science Center Aerial Imaging and Mapping group (AIM) at Assateague Island National Seashore October 10-14th, 2022.

Webcams

Pea Island video camera 1 snapshot
Pea Island video camera 1 snapshot
Pea Island video camera 1 snapshot

Two video cameras are temporarily mounted on a dune at Pea Island National Wildlife Refuge on the Outer Banks of North Carolina. The cameras are imaging the southern DUNEX (DUring Nearshore Event eXperiment) experiment site, and are designed to have a stereo view of the beach and potential overwash path until late October. Instruments from the U.S.

Two video cameras are temporarily mounted on a dune at Pea Island National Wildlife Refuge on the Outer Banks of North Carolina. The cameras are imaging the southern DUNEX (DUring Nearshore Event eXperiment) experiment site, and are designed to have a stereo view of the beach and potential overwash path until late October. Instruments from the U.S.

Pea Island video camera 2 snapshot
Pea Island video camera 2 snapshot
Pea Island video camera 2 snapshot

Two video cameras are temporarily mounted on a dune at Pea Island National Wildlife Refuge on the Outer Banks of North Carolina. The cameras are imaging the southern DUNEX (DUring Nearshore Event eXperiment) experiment site, and are designed to have a stereo view of the beach and potential overwash path until late October. Instruments from the U.S.

Two video cameras are temporarily mounted on a dune at Pea Island National Wildlife Refuge on the Outer Banks of North Carolina. The cameras are imaging the southern DUNEX (DUring Nearshore Event eXperiment) experiment site, and are designed to have a stereo view of the beach and potential overwash path until late October. Instruments from the U.S.

View of a sandy beach with gentle waves.
Marconi Beach video camera 1 dark image
Marconi Beach video camera 1 dark image
Marconi Beach video camera 1 dark image

Two video cameras are mounted on a bluff above Marconi Beach, Cape Cod National Seashore, Wellfleet, MA. Every half hour, the video cameras collect imagery for 10 minutes. This is the “dark” image, the darkest pixel values throughout the video, useful for tracking sediment plumes, tracking floating debris, and filtering out breaking waves.

Two video cameras are mounted on a bluff above Marconi Beach, Cape Cod National Seashore, Wellfleet, MA. Every half hour, the video cameras collect imagery for 10 minutes. This is the “dark” image, the darkest pixel values throughout the video, useful for tracking sediment plumes, tracking floating debris, and filtering out breaking waves.

View of a sandy beach with gentle waves.
Marconi Beach video camera 2 dark image
Marconi Beach video camera 2 dark image
Marconi Beach video camera 2 dark image

Two video cameras are mounted on a bluff above Marconi Beach, Cape Cod National Seashore, Wellfleet, MA. Every half hour, the video cameras collect imagery for 10 minutes. This is the “dark” image, the darkest pixel values throughout the video, useful for tracking sediment plumes, tracking floating debris, and filtering out breaking waves.

Two video cameras are mounted on a bluff above Marconi Beach, Cape Cod National Seashore, Wellfleet, MA. Every half hour, the video cameras collect imagery for 10 minutes. This is the “dark” image, the darkest pixel values throughout the video, useful for tracking sediment plumes, tracking floating debris, and filtering out breaking waves.

View of a sandy beach with gentle waves.
Marconi Beach video camera 1 variance image
Marconi Beach video camera 1 variance image
Marconi Beach video camera 1 variance image

Two video cameras are mounted on a bluff above Marconi Beach, Cape Cod National Seashore, Wellfleet, MA. Every half hour, the video cameras collect imagery for 10 minutes.

Two video cameras are mounted on a bluff above Marconi Beach, Cape Cod National Seashore, Wellfleet, MA. Every half hour, the video cameras collect imagery for 10 minutes.

View of a sandy beach with gentle waves.
Marconi Beach video camera 2 variance image
Marconi Beach video camera 2 variance image
Marconi Beach video camera 2 variance image

Two video cameras are mounted on a bluff above Marconi Beach, Cape Cod National Seashore, Wellfleet, MA. Every half hour, the video cameras collect imagery for 10 minutes.

Two video cameras are mounted on a bluff above Marconi Beach, Cape Cod National Seashore, Wellfleet, MA. Every half hour, the video cameras collect imagery for 10 minutes.