黃河口泥沙輸運(yùn)與岸線演變預(yù)測(cè)模型研究
[Abstract]:The Yellow River Delta region is rich in land and oil and gas resources. About 85% of the output of Shengli Oilfield in China comes from this region. Rapid deposition of land plays an important role in the exploration and development of oil and gas in the Yellow River estuary area, which makes offshore mining become land mining and greatly reduces the mining cost. Estuarine region is the gate of human exploration, exploitation and utilization of marine resources. At the same time, it is also the most intensive human activities and coastal residents production and living an important place. In this paper, the Yellow River Delta is used as the experimental area. Using the Landsat-8 remote sensing image data of the experimental area on November 25, 2013, 22 groups of measured suspended sediment concentration (Suspended Sediment Concentration,SSC) data and spectral reflectance data are obtained. First, the spectral curve is analyzed and the sensitive band is determined, then the remote sensing inversion model of suspended sediment concentration is established, and then the suspended sediment concentration distribution map in the experimental area is obtained by cutting the remote sensing image data and preprocessing the atmospheric correction. The sediment distribution in the estuary area is analyzed. At the same time, based on the Landsat-7 image data of 2007 / 2009 and October 2011, using cellular automata model (Cellular Automata,CA) and Monte Carlo method (Monte Carlo Method,MCM), this paper analyzes the main influencing factors of shoreline scouring and silting evolution, and focuses on the study of cellular transformation rules. A prediction system of coastal zone erosion and siltation evolution based on Yellow River Delta has been developed by determining the parameters to be simulated. The coastal distribution in 2013 has been successfully predicted. The main contents of this thesis are as follows: 1. This paper summarizes the changes of the Yellow River flow path and the shoreline evolution in the Yellow River Delta since the founding of the people's Republic of China, and analyzes the main influencing factors of the shoreline evolution: sediment content, river channel location, submarine topography, ocean dynamics, human activities, climate, etc. A remote sensing inversion model of suspended sediment concentration is constructed by analyzing the measured spectral curves. The inversion results are summarized and analyzed. By studying the cellular automata model and Monte Carlo method, the cellular transformation rules are determined, and a prediction model of shoreline erosion and siltation evolution based on the Yellow River Delta region is constructed. Combined with sediment remote sensing inversion results and remote sensing image data over the years, the evolution of shoreline and its influencing factors were analyzed.
【學(xué)位授予單位】:中國(guó)石油大學(xué)(華東)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類(lèi)號(hào)】:TV148;P737.1
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