Monitoring of marine primary production in the marginal seas

研究了东北亚太平洋边缘海域生物光学原位传感器和海洋颜色遥感技术在初级生产中的应用。通过对自然荧光的连续测量进行现场监测，改进的算法使碳吸收率达到了令人满意的水平。利用1999年至2000年在日本海和东海进行的巡航期间获得的生物光学参数，对利用遥感信息估计初级产量的区域算法进行了检验。Pbopt和叶绿素a是两个区域最关键的参数。虽然Kameda-Ishizaka算法在验证中获得了最好的性能，但估计值平均相差2倍，存在进一步改进的需求。利用OCTS和Sea WiFS数据对1996 - 2002年的叶绿素a和初级产量进行了时间序列观测，揭示了日本海春季华的时间和幅度的逐年变化。与日本海不同的是，案例2的水问题在东海全年都很明显。

Bio-optical monitoring of primary production using in situ sensors and ocean color remote sensing was examined for Northeast Asian marginal seas of the Pacific Ocean. In situ monitoring was conducted by the continuous measurement of natural fluorescence with which improved algorithm resulted in a satisfactory accordance with carbon uptake. Regional algorithms for estimating primary production from remotely sensed information were examined with published algorithms using bio-optical parameters obtained during cruised conducted between 1999 and 2000 in Japan Sea and the East China Sea. Pbopt and chlorophyll a were found to be most critical parameters in both areas. While Kameda-Ishizaka algorithm yielded best performance in the validation, estimates varied in the factor of 2, on average, posing requirement of further improvement. Time series observations of chlorophyll a and primary production from 1996 to 2002 using data obtained by both OCTS and Sea WiFS revealed year-to-year variations in both timing and magnitude of spring bloom in Japan Sea. In contrast to Japan Sea, case 2 water issue was distinct throughout the year in the East China Sea.