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Unsupervised classification and areal measurement of land and water coastal features on the texas coast
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Reeves, C. A. Hixon, S. B. Flores, L. M. Paris, J. F. |
| Copyright Year | 1973 |
| Description | Multispectral scanner (MSS) digital data from ERTS-1 was used to delineate coastal land, vegetative, and water features in two portions of the Texas Coastal Zone. Data (Scene ID's 1037-16244 and 1037-16251) acquired on August 29, 1972, were analyzed on NASA Johnson Space Center systems through the use of two clustering algorithms. Seventeen to 30 spectrally homogeneous classes were so defined. Many classes were identified as being pure features such as water masses, salt marsh, beaches, pine, hardwoods, and exposed soil or construction materials. Most classes were identified to be mixtures of the pure class types. Using an objective technique for measuring the percentage of wetland along salt marsh boundaries, an analysis was made of the accuracy of areal measurement of salt marshes. Accuracies ranged from 89 to 99 percent. Aircraft photography was used as the basis for determining the true areal size of salt marshes in the study sites. |
| File Size | 1687802 |
| Page Count | 7 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19730019651 |
| Archival Resource Key | ark:/13960/t3wt3fm6f |
| Language | English |
| Publisher Date | 1973-01-01 |
| Access Restriction | Open |
| Subject Keyword | Geophysics Classifications Multispectral Band Scanners Earth Resources Program Beaches Soils Algorithms Marine Environments Texas Vegetation Coastal Water Marshlands Landsat 1 Water Resources Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
