|Range of values|
|BHM||Site at Bayou Heron Mouth.|
|MBN||Site at Middle Bay North.|
|MBS||Site at Middle Bay South.|
|MBW||Site at Middle Bay West.|
|GBE||Site at Grand Battures East.|
|BSI||Site at Bird Island.|
|SPAL||Site at North Jose Bay.|
|MET||Site at meterological station island.|
|PACN||Site at Point aux Chenes North.|
|PACM||Site at Point aux Chenes Middle.|
|PACS||Site at Point aux Chenes South.|
Acknowledgment of the U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, as a data source would be appreciated in products developed from these data, and such acknowledgment as is standard for citation and legal practices. Sharing of new data layers developed directly from these data would also be appreciated by the U.S. Geological Survey staff. Users should be aware that comparisons with other datasets for the same area from other time periods may be inaccurate due to inconsistencies resulting from changes in photointerpretation, mapping conventions, and digital processes over time. These data are not legal documents and are not to be used as such. For access and pricing of imagery please contact Maxar Technologies.
This dataset contains transects with linear regression rates of change for GPS, WorldView, and aerial image (AI) shorelines. The purpose of these data is for the calculation of shoreline change rates for marsh shorelines of the GBNERR from 2013-2020.
Are there legal restrictions on access or use of the data?
Use_Constraints:The U.S. Geological Survey requests to be acknowledged as originator of the data in future products or derivative research. This metadata record should be reviewed in its entirety to ensure specific data are suitable for other studies. WorldView imagery remains the property of Maxar Technologies and is not published in this data release. Aerial imagery was downloaded from the USGS Earth Explorer website and is not published in this data release. Shoreline change rates are influenced by availability and accuracy of shoreline data. Analyses of highly dynamic areas are particularly challenging, including 1) areas near inlets, where there are excessively dynamic depositional/erosional sand bars that may appear/disappear rapidly, and 2) tidal creek shorelines where the vegetation/water line is not easily distinguished. Transects were modified so they crossed the shorelines in a perpendicular direction, but some small peninsulas were difficult to determine a perpendicular direction. Users of this data should examine the variables and values closely to determine if the analyses are appropriate for their intended purpose.
This digital publication was prepared by an agency of the United States Government. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, nor shall the act of distribution imply any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and (or) contained herein. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Imagery remains the property of Maxar Technologies. For image pricing and downloads please contact Maxar.