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NCBN Coastal Topography Monitoring, 2026 Cumulative Data Package
Changes in coastal topography, whether caused by erosion or accretion, vary both spatially and temporally. Understanding these variations is key to early recognition of potential problems affecting natural resources and cultural resources in coastal parks. For managers, an understanding of the spatial and temporal patterns of geomorphologic change is basic to optimal management of any coastal park because the interface of marine and land systems: 1) is highly dynamic and driven by multiple forcing mechanisms; 2) results in alterations to resource patterns and dynamics at habitat and ecosystem levels; and 3) can eventually result in the loss of static resources. The establishment of local, long-term monitoring programs provides metrics to help understand the processes that are driving coastal change of beaches, dunes, and bluffs within the parks. Monitoring will be accomplished using survey-grade GNSS equipment that collects topographic data along pre-established, cross-shore transects spaced at regular intervals augmented by areas of special concern to the parks. A Spatial Monuments Network of high quality reference points will be established for each of the NCBN parks, providing a robust basis for long-term monitoring. Spring and fall surveys conducted in accordance with standard operating procedures will generate coastal topography datasets that will be organized and assembled by a data manager into a national database for subsequent retrieval and additional examination. Dimensional parameters will be measured to describe the beach-dune-bluff system, and attributes will be compared and analyzed in a cross-shore and alongshore perspective, providing information about the temporal and spatial changes on beach-dune-bluff morphologies in the parks. The overall goal is to create a replicable means of data gathering that is efficient, adheres to scientific principles, and meets the management needs of the coastal parks.
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NCBN Shoreline Monitoring, 2026 Cumulative Data Package
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The dynamic nature of coastal areas is a defining characteristic, influencing nearly every aspect of their ecology. Fundamentally disturbance driven systems, coastal shorelines and their endemic biota are continually shaped by physical forces on a time scale vastly accelerated in comparison to mainland systems. Because of the rapid pace and scope of change, long term monitoring is crucial towards understanding natural shoreline conditions as well as anthropogenic influences. These data represent a series of mean high-water shorelines collected at Assateague Island National Seashore (ASIS), Cape Cod National Seashore (CACO), Fire Island National Seashore (FIIS), Gateway National Recreation Area (GATE), George Washington Birthplace National Monument (GEWA), and Sagamore Hill National Historic Site (SAHI). The features have been assembled/collected in support of the Northeast Coastal & Barrier Inventory and Monitoring Network's Ocean Shoreline Position Monitoring Program. Surveys along the ocean shoreline were collected by driving a 4-wheel drive vehicle or walking at a relatively constant speed along the identified high tide swash line. For the purposes of this monitoring program, the actual ocean "shoreline" was defined as the average position of the most recent high tide, evidenced by the obvious wet/dry sand line or deposited wrack. The GPS/GNSS receiver was configured to record positions at a very short interval (at least 1 position every 10 meters) for the best representation of the shoreline position. Depending on the time of year and intended purpose, some surveys contain ocean, inlet and bay shorelines, while some surveys only contain ocean shorelines.
Cape Cod National Seashore (CACO) Shoreline Position Change Monitoring Data Package - 1994-2025
공공데이터포털
These data represent a series of mean high-water shorelines collected at Cape Cod National Seashore (CACO), appended into one spatial dataset. The features have been assembled / collected in support of the Northeast Coastal & Barrier Inventory and Monitoring Network's Ocean Shoreline Position Monitoring Program. Surveys along the ocean shoreline were collected by driving a 4-wheel drive vehicle or walking at a relatively constant speed along the identified high tide swash line. For the purposes of this monitoring program, the actual ocean "shoreline" was defined as the average position of the most recent high tide, evidenced by the obvious wet/dry sand line or deposited wrack. The GPS/GNSS receiver was configured to record positions at a very short interval (at least 1 position every 10 meters) for the best representation of the shoreline position. Depending on the time of year and intended purpose, some surveys contain ocean, inlet and bay shorelines, while some surveys only contain ocean shorelines. Additionally, some surveys collected prior to 2003 do not contain FGDC-compliant metadata records. This dataset contains shoreline features collect between Fall 1994 and Spring 2025.
Cape Cod National Seashore (CACO) Shoreline Position Change Monitoring Data Package - 1994-2025
공공데이터포털
These data represent a series of mean high-water shorelines collected at Cape Cod National Seashore (CACO), appended into one spatial dataset. The features have been assembled / collected in support of the Northeast Coastal & Barrier Inventory and Monitoring Network's Ocean Shoreline Position Monitoring Program. Surveys along the ocean shoreline were collected by driving a 4-wheel drive vehicle or walking at a relatively constant speed along the identified high tide swash line. For the purposes of this monitoring program, the actual ocean "shoreline" was defined as the average position of the most recent high tide, evidenced by the obvious wet/dry sand line or deposited wrack. The GPS/GNSS receiver was configured to record positions at a very short interval (at least 1 position every 10 meters) for the best representation of the shoreline position. Depending on the time of year and intended purpose, some surveys contain ocean, inlet and bay shorelines, while some surveys only contain ocean shorelines. Additionally, some surveys collected prior to 2003 do not contain FGDC-compliant metadata records. This dataset contains shoreline features collect between Fall 1994 and Spring 2025.
Coastal Topography Monitoring Data for Assateague Island National Seashore (ASIS) through 2025
공공데이터포털
These files contain topographic profiles collected at ASIS through the Spring 2025 field season
Coastal Topography Monitoring Data for Assateague Island National Seashore (ASIS) through 2025
공공데이터포털
These files contain topographic profiles collected at ASIS through the Spring 2025 field season
Cape Cod National Seashore (CACO) Shoreline Position Change Monitoring Data Package - 1998-2021
공공데이터포털
These data represent a series of mean high water shorelines collected at Cape Cod National Seashore (CACO), appended into one spatial dataset. The features have been assembled / collected in support of the Northeast Coastal & Barrier Inventory and Monitoring Network's Ocean Shoreline Position Monitoring Program. Surveys along the ocean shoreline were collected by driving a 4-wheel drive vehicle or walking at a relatively constant speed along the identified high tide swash line. For the purposes of this monitoring program, the actual ocean "shoreline" was defined as the average position of the most recent high tide, evidenced by the obvious wet/dry sand line or deposited wrack. The GPS/GNSS receiver was configured to record positions at a very short interval (at least 1 position every 10 meters) for the best representation of the shoreline position. Depending on the time of year and intended purpose, some surveys contain ocean, inlet and bay shorelines, while some surveys only contain ocean shorelines. Additionally, some surveys collected prior to 2003 do not contain FGDC-compliant metadata records. This dataset contains shoreline features collect between Spring 1998 and Spring 2021.
Shorelines of the northern North Carolina (NCnorth) coastal region used in shoreline change analysis
공공데이터포털
Sandy ocean beaches are a popular recreational destination, often surrounded by communities containing valuable real estate. Development is on the rise despite the fact that coastal infrastructure is subjected to flooding and erosion. As a result, there is an increased demand for accurate information regarding past and present shoreline changes. To meet these national needs, the Coastal and Marine Geology Program of the U.S. Geological Survey (USGS) is compiling existing reliable historical shoreline data along open-ocean sandy shores of the conterminous United States and parts of Alaska and Hawaii under the National Assessment of Shoreline Change project. There is no widely accepted standard for analyzing shoreline change. Existing shoreline data measurements and rate calculation methods vary from study to study and prevent combining results into state-wide or regional assessments. The impetus behind the National Assessment project was to develop a standardized method of measuring changes in shoreline position that is consistent from coast to coast. The goal was to facilitate the process of periodically and systematically updating the results in an internally consistent manner.
Shorelines of the northern North Carolina (NCnorth) coastal region used in shoreline change analysis
공공데이터포털
Sandy ocean beaches are a popular recreational destination, often surrounded by communities containing valuable real estate. Development is on the rise despite the fact that coastal infrastructure is subjected to flooding and erosion. As a result, there is an increased demand for accurate information regarding past and present shoreline changes. To meet these national needs, the Coastal and Marine Geology Program of the U.S. Geological Survey (USGS) is compiling existing reliable historical shoreline data along open-ocean sandy shores of the conterminous United States and parts of Alaska and Hawaii under the National Assessment of Shoreline Change project. There is no widely accepted standard for analyzing shoreline change. Existing shoreline data measurements and rate calculation methods vary from study to study and prevent combining results into state-wide or regional assessments. The impetus behind the National Assessment project was to develop a standardized method of measuring changes in shoreline position that is consistent from coast to coast. The goal was to facilitate the process of periodically and systematically updating the results in an internally consistent manner.
Coastal Topography Monitoring Data for Assateague Island National Seashore (ASIS) through 2022
공공데이터포털
These files contain topographic profiles collected at ASIS through the 2022 field season
Coastal Topography Monitoring Data for Cape Cod National Seashore (CACO) through 2025
공공데이터포털
These files contain topographic profiles collected at CACO between Spring 2024 and Spring 2025