Marsh habitat change analysis for the Point Aux Chenes and Grand Bay Estuaries in Mississippi and Alabama from 1848 to 2022
Over time, as sea levels rise and land subsides, marsh transgression can occur. As shorelines erode and the marsh slowly transgresses landward into the upland, valuable coastal habitat simultaneously is lost and gained. If the shoreline erosion is faster than the rate of upland transgression, the result is a net loss in coastal wetlands. This dataset represents a marsh area change analysis for the Point Aux Chenes and Grand Bay estuaries in Mississippi and Alabama from 1848-1957/1958, 1848-2019/2022, and 1957/1958-2019/2022. Classified habitats are also included for 1848, 1957/1958 and 2022. Shoreline and upland boundary positional data were obtained from multiple data sources, including National Oceanic and Atmospheric Administration (NOAA) topographic sheets (t-sheets) and WorldView 2 high resolution satellite imagery. Two dates were chosen for the 1957/1958 (henceforth referred to as 1957), and 2019/2022 (henceforth be referred to as 2022) to provide complete coverage. Shorelines and upland lines were converted into raster data (.tif) to calculate marsh habitat area change over time. This data release contains a raster data for 1848, 1957, and 2022, as well as change rasters for 1848-1957, 1957-2022, and 1848-2022.
Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "Joseph F. Terrano",
"@type": "vcard:Contact",
"hasEmail": "mailto:jterrano@usgs.gov"
}
|
| description | Over time, as sea levels rise and land subsides, marsh transgression can occur. As shorelines erode and the marsh slowly transgresses landward into the upland, valuable coastal habitat simultaneously is lost and gained. If the shoreline erosion is faster than the rate of upland transgression, the result is a net loss in coastal wetlands. This dataset represents a marsh area change analysis for the Point Aux Chenes and Grand Bay estuaries in Mississippi and Alabama from 1848-1957/1958, 1848-2019/2022, and 1957/1958-2019/2022. Classified habitats are also included for 1848, 1957/1958 and 2022. Shoreline and upland boundary positional data were obtained from multiple data sources, including National Oceanic and Atmospheric Administration (NOAA) topographic sheets (t-sheets) and WorldView 2 high resolution satellite imagery. Two dates were chosen for the 1957/1958 (henceforth referred to as 1957), and 2019/2022 (henceforth be referred to as 2022) to provide complete coverage. Shorelines and upland lines were converted into raster data (.tif) to calculate marsh habitat area change over time. This data release contains a raster data for 1848, 1957, and 2022, as well as change rasters for 1848-1957, 1957-2022, and 1848-2022. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Digital Data",
"format": "XML",
"accessURL": "https://doi.org/10.5066/P1HZES2R",
"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.498d4a5e-2b70-48f3-9c71-f07e9952aaa8.xml"
}
]
|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_498d4a5e-2b70-48f3-9c71-f07e9952aaa8 |
| keyword |
[
"Grand Bay",
"Grande Batture Islands",
"Gulf of Mexico",
"North Rigolets Island",
"Pascagoula",
"Point Aux Chenes Bay",
"State of Alabama",
"State of Mississippi",
"USGS:498d4a5e-2b70-48f3-9c71-f07e9952aaa8",
"West Petit Bois Island",
"boundaries",
"coastal",
"coastal processes",
"environment",
"geographic information systems",
"geomorphology",
"geoscientificInformation",
"geospatial datasets",
"inlandWaters",
"marsh transgression",
"oceans",
"shoreline data",
"shoreline map",
"topographic maps",
"upland data",
"upland map"
]
|
| modified | 2024-11-13T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -88.495430, 30.313484, -88.307108, 30.427302 |
| theme |
[
"Geospatial"
]
|
| title | Marsh habitat change analysis for the Point Aux Chenes and Grand Bay Estuaries in Mississippi and Alabama from 1848 to 2022 |
