|0||OUT - pixels outside of analysis extent|
|1||WATER - pixels classified as water|
|4||WET MARSH - pixels classified as wet marsh land cover|
|6||MARSH - pixels classified as marsh land cover|
|7||FORESTED - pixels classified as forested land cover|
|9||MIXED VEGETATION - pixels classified as mixed vegetation land cover|
|10||VEGETATED BARE EARTH - pixels classified as vegetated bare earth land cover|
|11||BARE EARTH - pixels classified as bare earth|
|Range of values|
U.S. Geological Survey, Coastal and Marine Geology Program, St. Petersburg Coastal and Marine Science Center
This zip archive includes thematic raster data representing land-cover classes derived from two Landsat 5 Thematic Mapper (TM) and one Landsat 8 Operational Land Imager (OLI) image datasets from Assateague Island to Metompkin Island, Maryland and Virginia. For each image acquisition date, the Level 1 data products were stacked into composite 6-band (visible blue, green, and red; near infrared; and two short-wave infrared bands) image files and converted to at-sensor radiance and top-of-atmosphere reflectance. Adjacent scenes (Worldwide Reference System 2, path 14 row 33 and path 14 row 34) were mosaicked to a single image and then clipped to the study area extent. Seven land-cover classes (water, wet marsh, marsh, forested, mixed vegetation, vegetated bare earth, and bare earth) were derived for each image acquisition date using a hybrid classification approach to minimize misclassification of small interior water bodies and tidal channels with surrounding marsh environments.
Are there legal restrictions on access or use of the data?
Use_Constraints:The U.S. Geological Survey requests that it be acknowledged as the originator of this dataset in any future products or research derived from these data.
This 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, or for general or scientific purposes, 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.
These raster datasets were created using Esri ArcGIS version 10.2.2 and can be opened using Esri ArcGIS version 10.0 or higher; these data may also be viewed using the free GIS viewer ArcGIS Explorer.