Abstract
Taiwan's first scientific experimental satellite, ROCSAT-1, is scheduled to be launch in January 1999. It will carry three scientific payloads. One of them is an instrument named Ocean Color Imager (OCI) to monitor ocean colors. There are two major working groups for the scientific purpose of OCI, the Science Team (ST) and the Science Data Distribution Center (SDDC). The OCI-ST was formed for sensor calibration, atmospheric correction, algorithm development, and data validation. The OCI algorithms developed were tested by Sea-viewing Wide Field-of-view Sensor (SeaWiFS) data. The results show that the relative error of water-leaving radiance from OCI atmospheric correction algorithms is higher than that derived from SeaWiFS algorithms. However, the relative error of chlorophyll a concentration derived from OCI bio-optical algorithm using the water-leaving radiance derived from OCI atmospheric correction algorithms is smaller than that for SeaWiFS products. Data from OCI will be processed and then distributed by the OCI-SDDC. The OCI-SDDC is also a day-to-day operations center. Anyone who is interested in OCI products can request them via the OCI-SDDC web site at http://www.oci.ntou.edu.tw/.
Highlights
After the launch of the first orbiting satellite in the early 1960s, it became clear that ocean color could be viewed from space in cloud free conditions
N where x fi is the value of field measurements and xmi is the result derived from Ocean Color Imager (OCI) algorithms or Sea-viewing Wide Field-of-view Sensor (SeaWiFS) algorithms, and n is the total number of testing samples
The OCI-Science Team (ST) and OCI-Science Data Distribution Center (SDDC) are responsible for preparing quality OCI data and making them available
Summary
After the launch of the first orbiting satellite in the early 1960s, it became clear that ocean color could be viewed from space in cloud free conditions. The distribution and variability of ocean color can help the scientific community to study the dynamics of the oceans, the evolution of eddies, coastal currents and the physics of mixing. Taiwan is scheduled to launch her first experimental satellite, ROCSAT-1, in early 1999. It weights a 400 kg, and is a three-axis stabilized, low-earth orbit satellite with a 35° inclination. OCI has seven bands that span 443 nm to 865 nm, and these are for mapping chlorophyll a concentration distribution. In order to have successful operation of OCI, there are two scientific groups under the OCI project, the Science Team (ST) and the Science Data Distribution Center (SDDC). The SDDC at National Taiwan Ocean University (NTOU) is responsible for processing OCI data and distributing it to users
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