Costal Zone Monitoring and Assessment

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Project title

Code/計畫編號

NSC101-2625-M006-008

Translated Name/計畫中文名

氣候變遷調適科技整合研究計畫-海岸監測與分析計畫

Project Coordinator/計畫主持人

Tai-Wen Hsu

Funding Organization/主管機關

National Science and Technology Center for Disaster Reduction

Co-Investigator(s)/共同執行人

錢樺

Department/Unit

Department of Hydraulic and Ocean Engineering,NCKU

Website

https://www.grb.gov.tw/search/planDetail?id=2696611

Year

2012

Start date/計畫起

01-11-2012

Expected Completion/計畫迄

31-10-2013

Bugetid/研究經費

1239千元

ResearchField/研究領域

土木水利工程
大氣科學

台灣海岸地區承載著日益增加社會經濟壓力，與所有居民的生活息息相關。海岸地區是陸地和海洋空間交界地區，受到人類活動和自然過程的影響而處於一種動態變化的狀態，對全球暖化回應非常顯著且敏感。隨全球氣候變遷引致的極端天氣事件頻發及強度增強，突發性天氣事件對所經過海域的海洋水動力、海洋水文、化學及生物等過程將產生脈衝式擾動，改變介面之間的物質和能量交換，從而對於海岸產生物理性質與生態性質的衝擊。各項衝擊之綜合效應對海岸系統產生持久的變化，對於社會產生重大影響。為理解台灣海岸變化趨勢，作為氣候變遷調適政策擬定依據，俾進行生態、環境、人文等重要海岸敏感區之管理，本計畫目的在於蒐集整理既有研究成果提供作為科學證據，同時為補充現有成果較欠缺處：針對台灣海岸監測指標，就海岸溢淹、海岸線變遷、海水溫度異常與跨越海峽污物質輸送等災害威脅，探討其與氣候變遷直接或間接關係。最後依據國內外已有之氣候變遷情境預測資料，及其對應之台灣周邊海域天氣形態變化，包括極端事件發生強度與頻率變化，評估台灣海岸監測指標受氣候變遷影響方式及程度，以掌握其變遷趨勢。 Recent studies have been summarized to the consensus that the occurrence frequency and intensity of extreme events triggered by global climate change are increasing. The coastal zones, which are the habitat for high density population, are extremely sensitive to the extreme conditions as they are affected by both the nature and human activities synchronally. The pulse-like extreme events will bring direct impacts to the social-economic stability in coastal zone as they disrupt the balance of coastline as well as the ecosystem by altering the processes involved in the fluxes between atmospheric-ocean, land-sea interfaces. Some studies have shown that the combined effects eventually contribute to the more severe coastal hazards, including coastal inundation, harmful algal bloom and coastal hypoxia. In order to provide the knowledge and insights to the decision makers in Taiwan concerning the mitigation of global climate change related coastal hazards, it is the aim of present project to clarify the dependency of the coastal hazards to the global climate change indexes. We focus on the ever threatening coastal hazards in Taiwan, i.e. coastline erosion, degradation of coastal ecosystem due to extreme sea temperature events and cross Taiwan Strait Transport of pollutant, respectively. The investigation of hydro-dynamic and sediment transport on inner-shelf and estuaries are the keys. In the first phase, we will survey relevant literatures of global climate variation, including basin scale and the local effects in Taiwan. Then we carry out data analysis using the observed data of Air-sea boundary layer flux measurement, microwave radar satellites and ocean-borne instrumentations to resolve the hydrodynamic processes of momentum balance on the inner shelf and associated sediment transportation. The results will demonstrate the dependency of coastline change to the And discuss about the coast profile and coast line changes through these hydrodynamic mechanism. These result can be provided to determine the Coastal Vulnerability Index. The third year, we will utilize the satellite observation, coastal weather buoy, tidal stations, and high frequency Coastal RADAR, and results from numerical prediction systems, i.e. ATOP to investigate the onset of cross strait transport of pollutant in the Taiwan Strait.

Keyword(s)

氣候變遷
近岸海洋
海岸災害
climate change
coastal disaste

DSpace CRIS

Costal Zone Monitoring and Assessment

Details

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