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首页> 外文会议>Asian conference on remote sensing;ACRS >GEOSPATIAL TECHNIQUES ON HARMFUL ALGAL BLOOM DETECTION IN THE PHILIPPINE WATERS
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GEOSPATIAL TECHNIQUES ON HARMFUL ALGAL BLOOM DETECTION IN THE PHILIPPINE WATERS

机译：菲律宾水域有害藻华的地理空间技术

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Occurrence of harmful algal bloom (HAB) or red tide in the Philippines increased from 1980s to present. Since then the Bureau of Fisheries and Aquatic Resources releases bulletin on shellfish bans on areas that are commonly stricken by paralytic shellfish poisoning which is related to occurrence of harmful algal blooms or red tide. The said effort is a response to the increasing prevalence of the issue in the Philippines during the 80s and 90s. However, the bulletin only covers areas with active monitoring activities by the Bureau. Remote sensing can provide enhancement or augmentation to the said effort. In the past years, several bloom detection techniques were studied and applied in different parts of the world. Most of these techniques were based on ocean color data and derived products. Some of these techniques are the chlorophyll concentration anomaly, Red Tide index, Fluorescence Line Height (FLH), particulate backscattering and combination of these techniques. In this study, a modified chlorophyll concentration anomaly and FLH techniques were explored for bloom detection in the Philippine waters. MODIS aqua ocean color from 2002 to 2012 was used in the study. The results of these bloom detection techniques were correlated with shellfish ban database from the BFAR Shellfish Bulletin. Based on the correlation, it was found out that there is higher potential for nFLH bloom detection model than the chlorophyll a concentration anomaly model for detecting occurrence of shellfish toxicity.
机译：从1980年代到现在，菲律宾的有害藻华（HAB）或赤潮的发生率增加了。从那以后，渔业和水生资源局发布了关于贝类禁令的公告，该禁令是在通常因麻痹性贝类中毒而遭受破坏的地区，这与有害藻华或赤潮的发生有关。上述努力是对80年代和90年代菲律宾这一问题日益普遍的反应。但是，该公告仅涵盖无线电通信局开展积极监测活动的区域。遥感可以为所述工作提供增强或增强。在过去的几年中，研究了多种花粉检测技术，并将其应用到世界各地。这些技术大多数基于海洋颜色数据和衍生产品。这些技术中的一些是叶绿素浓度异常，赤潮指数，荧光线高度（FLH），颗粒反向散射以及这些技术的组合。在这项研究中，探索了修改后的叶绿素浓度异常和FLH技术，以检测菲律宾水域的水华。研究使用了2002年至2012年的MODIS水色。这些开花检测技术的结果与BFAR贝类公告中的贝类禁令数据库相关联。基于该相关性，发现用于检测贝类毒性发生的nFLH水华检测模型比叶绿素a浓度异常模型具有更高的潜力。

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