發(fā)布時(shí)間：2018-03-15 00:00

  本文選題：海州灣　切入點(diǎn)：海岸線　出處：《海洋科學(xué)》2016年06期 　論文類型：期刊論文

【摘要】：以Landsat影像為數(shù)據(jù)源,通過(guò)改進(jìn)歸一化水體指數(shù)、二值化、潮位校正模型提取海岸線,使用數(shù)字海岸線分析系統(tǒng)(Digital Shoreline Analysis System,DSAS),對(duì)1984~2012年海州灣海岸線的時(shí)空演變進(jìn)行了研究。結(jié)果表明,1984~2012年間海州灣海岸線整體以4.29 m/a向海洋推進(jìn),其中,48%的海岸出現(xiàn)侵蝕,侵蝕速率為22.83 m/a,侵蝕現(xiàn)象主要出現(xiàn)在大堤修建前的部分粉砂淤泥質(zhì)海岸。52%的海岸出現(xiàn)淤積,淤積速率為25.90 m/a,淤積現(xiàn)象主要出現(xiàn)在人工海岸、河口海岸和受大堤影響的粉砂淤泥質(zhì)海岸。海岸線時(shí)空演變研究有利于科學(xué)地規(guī)劃、開(kāi)發(fā)和管理海洋及其沿岸空間資源,并保證其環(huán)境及經(jīng)濟(jì)的可持續(xù)發(fā)展。
[Abstract]:Using Landsat image as data source, the shoreline was extracted by improving normalized water body index, binarization and tidal level correction model. The spatial and temporal evolution of Haizhou Bay coastline from 1984 to 2012 was studied by using Digital Shoreline Analysis system. The results show that the coastline of Haizhou Bay was pushed to sea by 4.29 m / a from 1984 to 2012, in which 48% of the coasts were eroded. The erosion rate is 22.83 m / a, and the erosion occurs mainly in the silt silt coasts before the construction of the embankment, and the deposition rate is 25.90 m / a, and the silt phenomenon mainly occurs on the artificial coast. The study on the temporal and spatial evolution of shoreline is beneficial to the scientific planning, development and management of the ocean and its coastal space resources, and to ensure the sustainable development of its environment and economy.
【作者單位】： 淮海工學(xué)院測(cè)繪工程學(xué)院;海島(礁)測(cè)繪技術(shù)國(guó)家測(cè)繪地理信息局重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家海洋公益性行業(yè)科研專項(xiàng)(201105004) 江蘇省海洋科學(xué)技術(shù)優(yōu)勢(shì)學(xué)科建設(shè)項(xiàng)目(2014137) 海島(礁)測(cè)繪技術(shù)國(guó)家測(cè)繪地理信息局重點(diǎn)實(shí)驗(yàn)室資助項(xiàng)目(2014B09) 國(guó)家自然科學(xué)基金項(xiàng)目(41506106)~~
【分類號(hào)】：P737.1

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