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Fuzzy classification of ocean color satellite data for bio-optical algorithm constituent retrievals
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Campbell, Janet W. |
| Copyright Year | 1998 |
| Description | The ocean has been traditionally viewed as a 2 class system. Morel and Prieur (1977) classified ocean water according to the dominant absorbent particle suspended in the water column. Case 1 is described as having a high concentration of phytoplankton (and detritus) relative to other particles. Conversely, case 2 is described as having inorganic particles such as suspended sediments in high concentrations. Little work has gone into the problem of mixing bio-optical models for these different water types. An approach is put forth here to blend bio-optical algorithms based on a fuzzy classification scheme. This scheme involves two procedures. First, a clustering procedure identifies classes and builds class statistics from in-situ optical measurements. Next, a classification procedure assigns satellite pixels partial memberships to these classes based on their ocean color reflectance signature. These membership assignments can be used as the basis for a weighting retrievals from class-specific bio-optical algorithms. This technique is demonstrated with in-situ optical measurements and an image from the SeaWiFS ocean color satellite. |
| File Size | 992629 |
| Page Count | 28 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19980039332 |
| Archival Resource Key | ark:/13960/t5jb13d12 |
| Language | English |
| Publisher Date | 1998-04-15 |
| Access Restriction | Open |
| Subject Keyword | Oceanography Cluster Analysis In Situ Measurement Oceans Satellite Observation Ocean Color Scanner Ocean Data Acquisitions Systems Remote Sensing Chlorophylls Pixels Satellite Imagery Optical Measurement Algorithms Water Color Water Quality Models Reflectance Image Classification Fuzzy Systems Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
