Underwater radiance distributions measured with miniaturized multispectral radiance cameras
Miniaturized radiance cameras measuring underwater multispectral radiances in all directions at high-radiometric accuracy (CE600) are presented. The camera design is described, as well as the main steps of its optical and radiometric characterization and calibration. The results show the excellent o...
| Main Authors: | , , , , , , , , , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
American Meteorological Society
2013
|
| Online Access: | http://hdl.handle.net/20.500.11937/32052 |
| _version_ | 1848753554883346432 |
|---|---|
| author | Antoine, David Morel, A. Leymarie, E. Houyou, A. Gentili, B. Victori, S. Buis, J. Buis, N. Meunier, S. Canini, M. Crozel, D. Fougnie, B. Henry, P. |
| author_facet | Antoine, David Morel, A. Leymarie, E. Houyou, A. Gentili, B. Victori, S. Buis, J. Buis, N. Meunier, S. Canini, M. Crozel, D. Fougnie, B. Henry, P. |
| author_sort | Antoine, David |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Miniaturized radiance cameras measuring underwater multispectral radiances in all directions at high-radiometric accuracy (CE600) are presented. The camera design is described, as well as the main steps of its optical and radiometric characterization and calibration. The results show the excellent optical quality of the specifically designed fish-eye objective. They also show the low noise and excellent linearity of the complementary metal oxide semiconductor (CMOS) detector array that is used. Initial results obtained in various oceanic environments demonstrate the potential of this instrument to provide new measurements of the underwater radiance distribution from the sea surface to dimly lit layers at depth. Excellent agreement is obtained between nadir radiances measured with the camera and commercial radiometers. Comparison of the upwelling radiance distributions measured with the CE600 and those obtained with another radiance camera also shows a very close agreement. The CE600 measurements allow all apparent optical properties (AOPs) to be determined from integration of the radiance distributions and inherent optical properties (IOPs) to be determined from inversion of the AOPs. This possibility represents a significant advance for marine optics by tying all optical properties to the radiometric standard and avoiding the deployment of complex instrument packages to collect AOPs and IOPs simultaneously (except when it comes to partitioning IOPs into their component parts). |
| first_indexed | 2025-11-14T08:26:22Z |
| format | Journal Article |
| id | curtin-20.500.11937-32052 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:26:22Z |
| publishDate | 2013 |
| publisher | American Meteorological Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-320522017-09-13T15:18:38Z Underwater radiance distributions measured with miniaturized multispectral radiance cameras Antoine, David Morel, A. Leymarie, E. Houyou, A. Gentili, B. Victori, S. Buis, J. Buis, N. Meunier, S. Canini, M. Crozel, D. Fougnie, B. Henry, P. Miniaturized radiance cameras measuring underwater multispectral radiances in all directions at high-radiometric accuracy (CE600) are presented. The camera design is described, as well as the main steps of its optical and radiometric characterization and calibration. The results show the excellent optical quality of the specifically designed fish-eye objective. They also show the low noise and excellent linearity of the complementary metal oxide semiconductor (CMOS) detector array that is used. Initial results obtained in various oceanic environments demonstrate the potential of this instrument to provide new measurements of the underwater radiance distribution from the sea surface to dimly lit layers at depth. Excellent agreement is obtained between nadir radiances measured with the camera and commercial radiometers. Comparison of the upwelling radiance distributions measured with the CE600 and those obtained with another radiance camera also shows a very close agreement. The CE600 measurements allow all apparent optical properties (AOPs) to be determined from integration of the radiance distributions and inherent optical properties (IOPs) to be determined from inversion of the AOPs. This possibility represents a significant advance for marine optics by tying all optical properties to the radiometric standard and avoiding the deployment of complex instrument packages to collect AOPs and IOPs simultaneously (except when it comes to partitioning IOPs into their component parts). 2013 Journal Article http://hdl.handle.net/20.500.11937/32052 10.1175/JTECH-D-11-00215.1 American Meteorological Society restricted |
| spellingShingle | Antoine, David Morel, A. Leymarie, E. Houyou, A. Gentili, B. Victori, S. Buis, J. Buis, N. Meunier, S. Canini, M. Crozel, D. Fougnie, B. Henry, P. Underwater radiance distributions measured with miniaturized multispectral radiance cameras |
| title | Underwater radiance distributions measured with miniaturized multispectral radiance cameras |
| title_full | Underwater radiance distributions measured with miniaturized multispectral radiance cameras |
| title_fullStr | Underwater radiance distributions measured with miniaturized multispectral radiance cameras |
| title_full_unstemmed | Underwater radiance distributions measured with miniaturized multispectral radiance cameras |
| title_short | Underwater radiance distributions measured with miniaturized multispectral radiance cameras |
| title_sort | underwater radiance distributions measured with miniaturized multispectral radiance cameras |
| url | http://hdl.handle.net/20.500.11937/32052 |