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Ocean observations with eos/modis: algorithm development and post launch studies (Document No: 19970026014)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Gordon, Howard R. |
| Copyright Year | 1997 |
| Description | Significant accomplishments made during the present reporting period are as follows: (1) We developed a new method for identifying the presence of absorbing aerosols and, simultaneously, performing atmospheric correction. The algorithm consists of optimizing the match between the top-of-atmosphere radiance spectrum and the result of models of both the ocean and aerosol optical properties; (2) We developed an algorithm for providing an accurate computation of the diffuse transmittance of the atmosphere given an aerosol model. A module for inclusion into the MODIS atmospheric-correction algorithm was completed; (3) We acquired reflectance data for oceanic whitecaps during a cruise on the RV Ka'imimoana in the Tropical Pacific (Manzanillo, Mexico to Honolulu, Hawaii). The reflectance spectrum of whitecaps was found to be similar to that for breaking waves in the surf zone measured by Frouin, Schwindling and Deschamps, however, the drop in augmented reflectance from 670 to 860 nm was not as great, and the magnitude of the augmented reflectance was significantly less than expected; and (4) We developed a method for the approximate correction for the effects of the MODIS polarization sensitivity. The correction, however, requires adequate characterization of the polarization sensitivity of MODIS prior to launch. |
| File Size | 7256669 |
| Page Count | 205 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19970026014 |
| Archival Resource Key | ark:/13960/t5k98475s |
| Language | English |
| Publisher Date | 1997-01-15 |
| Access Restriction | Open |
| Subject Keyword | Earth Resources And Remote Sensing Ocean Models Earth Observing System Eos Algorithms Oceans Atmospheric Correction Polarization Characteristics Radiance Atmospheric Models Optical Properties Aerosols Spectra Reflectance 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 |
