SeaWiFS
SeaWiFS, Sea-viewing Wide Field-of-view Sensor, was the only scientific instrument on GeoEye's OrbView-2 (AKA SeaStar) satellite, and was a follow-on experiment to the Coastal Zone Color Scanner on Nimbus 7.
Launched August 1, 1997 on an Orbital Sciences Pegasus small air-launched rocket, SeaWiFS began scientific operations on September 18, 1997 and stopped collecting data on December 11, 2010.[1] The sensor resolution is 1.1 km (LAC), 4.5 km (GAC). The sensor recorded information in the following optical bands:
| Band | Wavelength |
|---|---|
| 1 | 402-422 nm |
| 2 | 433-453 nm |
| 3 | 480-500 nm |
| 4 | 500-520 nm |
| 5 | 545-565 nm |
| 6 | 660-680 nm |
| 7 | 745-785 nm |
| 8 | 845-885 nm |
The instrument was specifically designed to monitor ocean characteristics such as chlorophyll-a concentration and water clarity. It was able to tilt up to 20 degrees to avoid sunlight from the sea surface. This feature is important at equatorial latitudes where glint from sunlight often obscures water colour. SeaWiFS had used the Marine Optical Buoy for vicarious calibration.
The SeaWiFS Mission is an industry/government partnership, with NASA's Ocean Biology Processing Group at Goddard Space Flight Center having responsibility for the data collection, processing, calibration, validation, archive and distribution. The current SeaWiFS Project manager is Gene Carl Feldman.
References [edit]
- Cracknell, A. P., S. K. Newcombe, A. F. Black and N. E. Kirby (2001). The ABDMAP (Algal Bloom Detection, Monitoring and Prediction) Concerted Action. International Journal of Remote Sensing, 22: 205-247
- ^ NASA, Goddard Space Flight Center (February 14, 2011). "Ocean Color Browse". Retrieved February 14, 2011.
External links [edit]
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