Assessment of uncertainty in the water-leaving reflectance determined by three satellite ocean color sensors (MERIS, SeaWiFS, MODIS-A) at an offshore site in the Mediterranean Sea (BOUSSOLE project)
The match-up of satellite-derived reflectances with in situ observations is crucial to evaluate their quality and temporal stability. To contribute to this effort, a project has been set up to collect a data set of in situ radiometric and bio-optical quantities, in support to satellite ocean color c...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
Wiley-Blackwell Publishing Inc.
2008
|
| Online Access: | http://hdl.handle.net/20.500.11937/17501 |
| _version_ | 1848749482934534144 |
|---|---|
| author | Antoine, David D’Ortenzio, F. Hooker, S. Becu, G. Gentili, B. Tailliez, D. Scott, A. |
| author_facet | Antoine, David D’Ortenzio, F. Hooker, S. Becu, G. Gentili, B. Tailliez, D. Scott, A. |
| author_sort | Antoine, David |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The match-up of satellite-derived reflectances with in situ observations is crucial to evaluate their quality and temporal stability. To contribute to this effort, a project has been set up to collect a data set of in situ radiometric and bio-optical quantities, in support to satellite ocean color calibration and validation. The project has been named ‘‘BOUSSOLE’’, and one of its key elements is a deep-sea optics mooring collecting data on a near-continuous basis since September 2003. This buoy is deployed in the deep clear waters of the northwestern Mediterranean Sea, and is visited on a monthly basis for servicing and acquisition of complementary data. The characteristics of the work area establish the site as a satisfactory location for validating satellite ocean color observations. A description of the data processing protocols is provided, followed by an analysis of the uncertainty of the buoy radiometry measurements. The results of a match-up analysis of the marine reflectances, diffuse attenuation coefficients, and chlorophyll concentrations for three major missions, i.e., MERIS, SeaWiFS, and MODIS-A, are then analyzed. They show poor performances for the bluest band (412 nm) of the three sensors, and performances within requirements at 443 and 490 nm for SeaWiFS and MODIS-A. These results suggest that a vicarious calibration should be introduced for the MERIS sensor. This analysis also demonstrates that a major effort is still required to improve atmospheric correction procedures whatever the mission. |
| first_indexed | 2025-11-14T07:21:39Z |
| format | Journal Article |
| id | curtin-20.500.11937-17501 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:21:39Z |
| publishDate | 2008 |
| publisher | Wiley-Blackwell Publishing Inc. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-175012023-02-22T06:24:20Z Assessment of uncertainty in the water-leaving reflectance determined by three satellite ocean color sensors (MERIS, SeaWiFS, MODIS-A) at an offshore site in the Mediterranean Sea (BOUSSOLE project) Antoine, David D’Ortenzio, F. Hooker, S. Becu, G. Gentili, B. Tailliez, D. Scott, A. The match-up of satellite-derived reflectances with in situ observations is crucial to evaluate their quality and temporal stability. To contribute to this effort, a project has been set up to collect a data set of in situ radiometric and bio-optical quantities, in support to satellite ocean color calibration and validation. The project has been named ‘‘BOUSSOLE’’, and one of its key elements is a deep-sea optics mooring collecting data on a near-continuous basis since September 2003. This buoy is deployed in the deep clear waters of the northwestern Mediterranean Sea, and is visited on a monthly basis for servicing and acquisition of complementary data. The characteristics of the work area establish the site as a satisfactory location for validating satellite ocean color observations. A description of the data processing protocols is provided, followed by an analysis of the uncertainty of the buoy radiometry measurements. The results of a match-up analysis of the marine reflectances, diffuse attenuation coefficients, and chlorophyll concentrations for three major missions, i.e., MERIS, SeaWiFS, and MODIS-A, are then analyzed. They show poor performances for the bluest band (412 nm) of the three sensors, and performances within requirements at 443 and 490 nm for SeaWiFS and MODIS-A. These results suggest that a vicarious calibration should be introduced for the MERIS sensor. This analysis also demonstrates that a major effort is still required to improve atmospheric correction procedures whatever the mission. 2008 Journal Article http://hdl.handle.net/20.500.11937/17501 10.1029/2007JC004472 Wiley-Blackwell Publishing Inc. unknown |
| spellingShingle | Antoine, David D’Ortenzio, F. Hooker, S. Becu, G. Gentili, B. Tailliez, D. Scott, A. Assessment of uncertainty in the water-leaving reflectance determined by three satellite ocean color sensors (MERIS, SeaWiFS, MODIS-A) at an offshore site in the Mediterranean Sea (BOUSSOLE project) |
| title | Assessment of uncertainty in the water-leaving reflectance determined by three satellite ocean color sensors (MERIS, SeaWiFS, MODIS-A) at an offshore site in the Mediterranean Sea (BOUSSOLE project) |
| title_full | Assessment of uncertainty in the water-leaving reflectance determined by three satellite ocean color sensors (MERIS, SeaWiFS, MODIS-A) at an offshore site in the Mediterranean Sea (BOUSSOLE project) |
| title_fullStr | Assessment of uncertainty in the water-leaving reflectance determined by three satellite ocean color sensors (MERIS, SeaWiFS, MODIS-A) at an offshore site in the Mediterranean Sea (BOUSSOLE project) |
| title_full_unstemmed | Assessment of uncertainty in the water-leaving reflectance determined by three satellite ocean color sensors (MERIS, SeaWiFS, MODIS-A) at an offshore site in the Mediterranean Sea (BOUSSOLE project) |
| title_short | Assessment of uncertainty in the water-leaving reflectance determined by three satellite ocean color sensors (MERIS, SeaWiFS, MODIS-A) at an offshore site in the Mediterranean Sea (BOUSSOLE project) |
| title_sort | assessment of uncertainty in the water-leaving reflectance determined by three satellite ocean color sensors (meris, seawifs, modis-a) at an offshore site in the mediterranean sea (boussole project) |
| url | http://hdl.handle.net/20.500.11937/17501 |