摘要
I. BRIEF INTRODUCTIONOn May 1 5, 2002, China successfully launched its home-made HY-1A satellite into sun-synchronous orbit. Since May 29, 2002, the HY-1A has sent back the data obtained by Ocean Color Sensors (COCTS) and CCD to the Earth, as a result of which the ground stations of National Satellite Ocean Appli-
