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不同空間尺度臺(tái)風(fēng)風(fēng)暴潮災(zāi)害情景模擬與風(fēng)險(xiǎn)評(píng)估

發(fā)布時(shí)間:2018-05-09 15:07

  本文選題:臺(tái)風(fēng)風(fēng)暴潮 + 風(fēng)險(xiǎn)評(píng)估; 參考:《華東師范大學(xué)》2013年碩士論文


【摘要】:中國東部沿海地區(qū)位于太平洋風(fēng)暴盆地西北緣,臺(tái)風(fēng)風(fēng)暴潮災(zāi)害頻發(fā),造成的損失具有不斷增加的趨勢(shì),而上海作為全國經(jīng)濟(jì)、金融中心,一旦發(fā)生臺(tái)風(fēng)風(fēng)暴潮災(zāi)害將會(huì)造成巨大的經(jīng)濟(jì)和社會(huì)損失,F(xiàn)有臺(tái)風(fēng)風(fēng)暴潮風(fēng)險(xiǎn)研究多以歷史臺(tái)風(fēng)風(fēng)暴潮事件重現(xiàn)模擬為主,缺乏基于情景的完善的風(fēng)險(xiǎn)評(píng)估方法體系,對(duì)災(zāi)害空間尺度問題更是鮮有涉及。本文基于歷史臺(tái)風(fēng)風(fēng)暴潮災(zāi)害信息,利用概率統(tǒng)計(jì)方法和GIS空間建模方法,構(gòu)建基于情景的臺(tái)風(fēng)風(fēng)暴潮災(zāi)害風(fēng)險(xiǎn)評(píng)估方法體系,并就空間尺度效應(yīng)進(jìn)行探討,這對(duì)臺(tái)風(fēng)風(fēng)暴潮災(zāi)害風(fēng)險(xiǎn)研究具有一定的借鑒意義。 在國家自然科學(xué)基金重點(diǎn)項(xiàng)目“沿海城市自然災(zāi)害風(fēng)險(xiǎn)評(píng)估實(shí)證研究(40730526)”、上海市教育委員會(huì)科研創(chuàng)新項(xiàng)目“上海地區(qū)臺(tái)風(fēng)-風(fēng)暴潮-暴雨災(zāi)害鏈綜合風(fēng)險(xiǎn)防范研究(13ZZ035)”、上海市科技啟明星人才計(jì)劃“基于情景分析的上海市自然災(zāi)害風(fēng)險(xiǎn)評(píng)估與區(qū)劃研究(09QA1401800)”、華東師范大學(xué)科研創(chuàng)新基金項(xiàng)目“不同時(shí)空尺度災(zāi)害鏈綜合風(fēng)險(xiǎn)評(píng)估研究-以上海為例”的資助下,論文選取中國東部沿海和上海地區(qū)作為兩種空間尺度實(shí)證研究區(qū),基于情景思想,綜合運(yùn)用臺(tái)風(fēng)危險(xiǎn)性情景生成工具、水文數(shù)值模擬軟件DHI MIKE21以及ArcGIS工具,按照“風(fēng)險(xiǎn)辨識(shí)-情景構(gòu)建-危險(xiǎn)性評(píng)估-脆弱性評(píng)估-風(fēng)險(xiǎn)區(qū)劃及防范”的災(zāi)害風(fēng)險(xiǎn)研究體系,開展兩種空間尺度風(fēng)險(xiǎn)評(píng)估工作,并提出有針對(duì)性的風(fēng)險(xiǎn)防范措施,同時(shí)探討臺(tái)風(fēng)風(fēng)暴潮災(zāi)害風(fēng)險(xiǎn)研究的空間尺度效應(yīng)。本研究開展的工作及研究成果概況為: 1、基于情景思想,利用概率統(tǒng)計(jì)和GIS空間建模方法,構(gòu)建兩種空間尺度臺(tái)風(fēng)風(fēng)暴潮災(zāi)害危險(xiǎn)性模型,并提出了一套完整的臺(tái)風(fēng)風(fēng)暴潮災(zāi)害風(fēng)險(xiǎn)評(píng)估方法體系:(1)統(tǒng)計(jì)分析2118場(chǎng)臺(tái)風(fēng)數(shù)據(jù),開發(fā)建立臺(tái)風(fēng)危險(xiǎn)性情景生成工具,并生成W20、W50、W100、 WN20、WN50、WN100、S20、S50、S100共三類9場(chǎng)臺(tái)風(fēng)情景數(shù)據(jù)。以臺(tái)風(fēng)為驅(qū)動(dòng)力,在DHI MIKE21平臺(tái)下完成臺(tái)風(fēng)風(fēng)暴潮危險(xiǎn)性模型構(gòu)建。(2)從臺(tái)風(fēng)危險(xiǎn)性情景構(gòu)建、臺(tái)風(fēng)驅(qū)動(dòng)下風(fēng)暴潮災(zāi)害危險(xiǎn)性模擬、臺(tái)風(fēng)風(fēng)暴潮災(zāi)害風(fēng)險(xiǎn)評(píng)估三個(gè)方面構(gòu)建了基于情景的臺(tái)風(fēng)風(fēng)暴潮災(zāi)害風(fēng)險(xiǎn)評(píng)估方法體系。 2、以中國東部沿海地區(qū)為大尺度實(shí)證研究區(qū),開展臺(tái)風(fēng)風(fēng)暴潮災(zāi)害風(fēng)險(xiǎn)評(píng)估:(1)從9種情景臺(tái)風(fēng)風(fēng)暴潮災(zāi)危險(xiǎn)性評(píng)估結(jié)果上看,西移型情景臺(tái)風(fēng)風(fēng)暴潮主要影響廣東和海南兩省,西北移型主要影響福建和浙江兩個(gè)省份,轉(zhuǎn)向型主要影響區(qū)域?yàn)檎憬、上海、江蘇三個(gè)地區(qū);極端臺(tái)風(fēng)(100年一遇)情景下,西移型、西北移型、轉(zhuǎn)向型情景淹沒面積分別為10124、17915、23916km2。(2)選取3種極端危險(xiǎn)性情景,開展臺(tái)風(fēng)風(fēng)暴潮災(zāi)害脆弱性評(píng)估,從結(jié)果中可以看到,W100、WN100情景影響區(qū)域內(nèi),臺(tái)風(fēng)風(fēng)暴潮災(zāi)害脆弱性等級(jí)多為1或2,處于中低水平;S100情景影響下的地區(qū)脆弱性等級(jí)較高,上海地區(qū)脆弱性等級(jí)為4。(3)基于臺(tái)風(fēng)風(fēng)暴潮災(zāi)害危險(xiǎn)性和脆弱性評(píng)估,進(jìn)行風(fēng)險(xiǎn)區(qū)劃,廣東雷州半島、海南島沿海地區(qū)、浙江省東南部及杭州灣、江蘇省南部為中風(fēng)險(xiǎn)區(qū),上海市東部為中高風(fēng)險(xiǎn)區(qū)。(4)依據(jù)風(fēng)險(xiǎn)區(qū)劃結(jié)果,提出中國東部沿海地區(qū)臺(tái)風(fēng)風(fēng)暴潮災(zāi)害風(fēng)險(xiǎn)防范措施,即大尺度臺(tái)風(fēng)風(fēng)暴潮災(zāi)害風(fēng)險(xiǎn)防范工作應(yīng)把重點(diǎn)放在戰(zhàn)略和政策導(dǎo)向方面,如調(diào)整社會(huì)發(fā)展模式,促進(jìn)經(jīng)濟(jì)和自然協(xié)調(diào)與可持續(xù)發(fā)展。 3、以上海地區(qū)為中尺度實(shí)證研究區(qū),開展臺(tái)風(fēng)風(fēng)暴潮災(zāi)害風(fēng)險(xiǎn)評(píng)估:(1)從3種情景(W100、WN100、S100)臺(tái)風(fēng)風(fēng)暴潮災(zāi)害危險(xiǎn)性評(píng)估結(jié)果上看,上海主要淹沒區(qū)域集中在崇明島南部、長興島沿岸、橫沙島西側(cè)、寶山區(qū)、浦東新區(qū)以及奉賢、金山沿海地區(qū);極端臺(tái)風(fēng)情景(S100)下,淹沒面積為351km2。(2)在脆弱性評(píng)估方面,上海高等級(jí)脆弱性主要存在于上海市崇明島南岸、長興島南岸、寶山沿海地區(qū)、浦東濱海以及金山南部沿海。上述區(qū)域多為公共管理與公共服務(wù)用地及交通運(yùn)輸用地。(3)風(fēng)險(xiǎn)區(qū)劃顯示,上海地區(qū)極高危險(xiǎn)區(qū)主要是崇明島南端、寶山及浦東港口用地、金山南端。(4)依據(jù)風(fēng)險(xiǎn)區(qū)劃結(jié)果,上海中尺度上,針對(duì)高風(fēng)險(xiǎn)區(qū),風(fēng)險(xiǎn)防范應(yīng)以風(fēng)險(xiǎn)管理和城市規(guī)劃為導(dǎo)向,開展工程和生物防范工作,如在寶山、浦東、金山等極高風(fēng)險(xiǎn)區(qū)加固海塘,構(gòu)建梯級(jí)防御工事等。 4、基于中國東部沿海和上海地區(qū)實(shí)證研究,探討臺(tái)風(fēng)風(fēng)暴潮災(zāi)害風(fēng)險(xiǎn)的空間尺度效應(yīng):(1)危險(xiǎn)性空間尺度效應(yīng)主要體現(xiàn)在情景構(gòu)建方法上,即大尺度選用全部9種臺(tái)風(fēng)情景,中尺度僅選擇顯著影響該區(qū)域的3種,此外,大尺度模型開邊界遠(yuǎn)大于中尺度,而在模擬結(jié)果精度上,中尺度明顯好于大尺度。(2)脆弱性上具有評(píng)估方法和結(jié)果精度兩方面的空間尺度效應(yīng),大尺度脆弱性評(píng)估將一級(jí)用地類型作為承災(zāi)體,中尺度脆弱性評(píng)估則選用二級(jí)用地類型為承災(zāi)體,因此中尺度臺(tái)風(fēng)風(fēng)暴潮災(zāi)害脆弱性評(píng)估結(jié)果較大尺度更為精確。(3)臺(tái)風(fēng)風(fēng)暴潮災(zāi)害風(fēng)險(xiǎn)區(qū)劃的空間尺度效應(yīng)表現(xiàn)為,在區(qū)劃方法一致的前提下,由于數(shù)據(jù)精度的差別導(dǎo)致區(qū)劃結(jié)果不同,即大尺度風(fēng)險(xiǎn)區(qū)劃中,上海地區(qū)中高風(fēng)險(xiǎn)區(qū)僅出現(xiàn)在東北部黃浦江入?诟浇,其余地方以低風(fēng)險(xiǎn)區(qū)為主;中尺度風(fēng)險(xiǎn)區(qū)劃則更為細(xì)化,崇明島沿岸多為中低風(fēng)險(xiǎn)區(qū),寶山區(qū)沿海多為中高風(fēng)險(xiǎn)區(qū),浦東沿海地區(qū)、南匯、奉賢基本為中低風(fēng)險(xiǎn)區(qū),極高風(fēng)險(xiǎn)區(qū)分布在崇明島南部沿岸、長興島南端、寶山、浦東港口用地處以及金山最南端。(4)在分析空間尺度效應(yīng)基礎(chǔ)上,利用空間降尺度方法構(gòu)建了不同空間尺度耦合模式,包括數(shù)據(jù)耦合、方法耦合以及區(qū)劃耦合。 論文特色與創(chuàng)新:(1)強(qiáng)調(diào)災(zāi)害危險(xiǎn)性情景的科學(xué)性和合理性:本研究在對(duì)中國東部沿海近50年臺(tái)風(fēng)資料進(jìn)行分析基礎(chǔ)上,利用概率統(tǒng)計(jì)學(xué)方法,對(duì)臺(tái)風(fēng)災(zāi)害的危險(xiǎn)性進(jìn)行統(tǒng)計(jì)分析,從而建立科學(xué)的危險(xiǎn)性情景。(2)重視臺(tái)風(fēng)風(fēng)暴潮災(zāi)害風(fēng)險(xiǎn)研究的工具與方法研究:本文從臺(tái)風(fēng)危險(xiǎn)性情景構(gòu)建、臺(tái)風(fēng)驅(qū)動(dòng)下風(fēng)暴潮災(zāi)害危險(xiǎn)性模擬、臺(tái)風(fēng)風(fēng)暴潮災(zāi)害風(fēng)險(xiǎn)評(píng)估三個(gè)方面建立科學(xué)的研究方法體系,并成功開發(fā)臺(tái)風(fēng)情景生成工具。(3)對(duì)空間尺度這一地理學(xué)難點(diǎn)問題進(jìn)行探索性研究。在空間耦合模式的構(gòu)建中,嘗試?yán)么蟪叨饶M結(jié)果作為中尺度模擬所需的邊界條件,以此體現(xiàn)兩種空間尺度臺(tái)風(fēng)風(fēng)暴潮災(zāi)害風(fēng)險(xiǎn)研究的聯(lián)系。
[Abstract]:The coastal areas of eastern China are located in the northwest margin of the Pacific storm basin. Typhoon storm tide disasters are frequent, and the losses caused by the typhoon are increasing. As the national economic and financial center, Shanghai will cause huge economic and social loss once the typhoon storm tide occurs. In this paper, based on the historical typhoon storm tide disaster information, this paper uses the probability statistics method and the GIS spatial modeling method to construct the scenario based typhoon storm tide hazard risk assessment method system, and constructs the typhoon storm tide hazard assessment method system based on the situation. The spatial scale effect is also discussed, which has some reference significance for typhoon storm surge disaster risk research.
In the key project of National Natural Science Foundation, "empirical study on risk assessment of coastal urban natural disasters" (40730526), Shanghai education committee research and innovation project "Shanghai region typhoon storm tide rainstorm disaster chain comprehensive risk prevention research (13ZZ035)", Shanghai city science and technology star talent program "based on situational analysis of Shanghai City The study of natural disaster risk assessment and zoning (09QA1401800), the research and innovation fund of East China Normal University, funded by Shanghai as an example, selected the eastern coastal and Shanghai regions of China as two spatial scale empirical research areas, based on situational ideas and integrated transportation. Using the typhoon hazard scenario generating tool, the hydrologic numerical simulation software DHI MIKE21 and the ArcGIS tool, two kinds of space scale risk assessment work are carried out according to the disaster risk research system of "risk identification - risk assessment - vulnerability assessment - risk zoning and prevention", and the targeted risk prevention measures are put forward. The spatial scale effect of typhoon storm surge disaster risk research is discussed.
1, based on the scenario thought, using probability statistics and GIS space modeling method, we construct two kinds of hazard model of typhoon storm surge disaster in space scale, and put forward a complete set of risk assessment method system of typhoon storm tide disaster: (1) statistics and analysis of 2118 typhoons data, developing and establishing typhoon hazard scenario generating tool, and generating W20, W50, W 100, WN20, WN50, WN100, S20, S50, S100, a total of three types of typhoon scenario data. Take typhoon as the driving force, complete the typhoon storm surge hazard model under the DHI MIKE21 platform. (2) construction of typhoon risk scenario, typhoon driven Storm Surge Hazard simulation, Typhoon Storm Surge Hazard assessment based on the scenario based on the scenario based on the scenario. The risk assessment method system of typhoon storm surge disaster.
2, taking the coastal areas of eastern China as a large scale empirical research area, the risk assessment of typhoon storm surge disaster is carried out: (1) from the results of 9 scenarios of typhoon storm flood hazard assessment, the westward shifting scenario typhoon storm surge mainly affects two provinces of Guangdong and Hainan, and the Northwest migration mainly affects two provinces in Fujian and Zhejiang, and the main influence of the steering type The area is three regions in Zhejiang, Shanghai and Jiangsu; under the extreme typhoon (100 year encounter) scenario, the area of westward migration, northwest migration and steering type is 101241791523916km2. (2), respectively, to select 3 extreme risk scenarios, and to carry out the vulnerability assessment of typhoon storm surge disaster. From the results, we can see that the W100, WN100 situation affects the region, The vulnerability level of wind storm surge is 1 or 2, at the middle and low level; the vulnerability level of the region under the influence of S100 is high, the vulnerability grade of Shanghai region is 4. (3) based on the risk and vulnerability assessment of typhoon storm tide, and the risk zoning, the Leizhou Peninsula in Guangdong, the coastal area of Hainan Island, the Southeast Zhejiang province and the Hangzhou Bay, The southern part of Jiangsu province is the middle risk area and the east of Shanghai is the middle and high risk area. (4) according to the result of the risk zoning, the risk prevention measures of typhoon storm surge in the eastern coastal areas of China are put forward. That is, the risk prevention of large scale typhoon storm disaster should focus on the strategy and policy orientation, such as adjusting the social development model and promoting the economic development model. Economic and natural coordination and sustainable development.
3, taking the Shanghai area as the mesoscale empirical research area to carry out the risk assessment of typhoon storm surge disaster: (1) from the 3 scenarios (W100, WN100, S100) typhoon storm surge hazard assessment results, the main submergence areas in Shanghai are concentrated in southern Chongming Island, Changxing Island coast, west side of cross sand island, Baoshan District, Pudong New Area and Fengxian, the coast of Jinshan. Area; extreme typhoon scenario (S100), the submergence area of 351km2. (2) in vulnerability assessment, Shanghai high grade vulnerability mainly exists in Shanghai Chongming Island south bank, Changxing Island south bank, Baoshan coastal area, Pudong coastal area and southern Jinshan coast. The above area is mostly public management and public service land and transportation land. (3) The risk zoning shows that the most dangerous areas in Shanghai are the southern end of Chongming Island, the port land of Baoshan and Pudong and the southern end of the Jinshan. (4) according to the result of the risk zoning, the risk prevention should be directed by the risk management and the urban planning for the high-risk area, and the risk prevention should be based on the risk management and the urban planning as the guidance, the exhibition project and the biological prevention work, such as in Baoshan, Pudong, Jinshan and so on. Reinforcement of seawall and construction of stepped fortifications in high-risk areas.
4, based on the empirical study of the eastern coastal and Shanghai regions of China, the spatial scale effects of typhoon storm surge hazard risk are discussed: (1) the spatial scale effect of danger is mainly reflected in the scenario construction method, that is, the large scale selection of all 9 typhoon scenarios, the mesoscale only select 3 types that significantly affect the region, in addition, the large scale model opens the boundary. The mesoscale is much better than the mesoscale, and the mesoscale is better than the large scale in the accuracy of the simulation results. (2) the vulnerability has the spatial scale effect of the evaluation method and the result precision in two aspects. The large scale vulnerability assessment takes the first grade land type as the disaster bearing body, and the mesoscale vulnerability assessment selects the two grade land type as the disaster bearing body, so the mesoscale scale is the mesoscale. The result of typhoon storm surge vulnerability assessment is more accurate. (3) the spatial scale effect of Typhoon Storm Surge Hazard Zoning is manifested by the difference of data accuracy caused by the difference of data accuracy, that is, in large scale risk zoning, the middle and high risk areas in Shanghai region only appear in the Northeast yellow. In the vicinity of Pujiang entrance to the sea, the other places are mainly low risk areas, and the mesoscale risk zoning is more refined, the Chongming Island coast is mostly middle and low risk areas, the coastal areas of Baoshan District are mostly middle and high risk areas, the coastal areas of Pudong, Nanhui and Fengxian are basically middle and low risk areas, and the high risk areas are distributed in the southern coast of Chongming Island, the southern end of Changxing Island, Baoshan, PU. The east port land use and the south end of the Jinshan. (4) on the basis of the spatial scale effect analysis, the spatial scale coupling modes are constructed by spatial scaling method, including data coupling, method coupling and zoning coupling.
The characteristics and innovation of the paper: (1) emphasizing the scientificity and rationality of the disaster risk scenario: Based on the analysis of the typhoon data in the east of China for the last 50 years, this study makes a statistical analysis of the risk of typhoon disaster by using probability statistics method, thus establishing the dangerous situation of the sciences. (2) pay attention to the typhoon storm surge disaster. Research tools and methods of risk research: This paper builds a scientific research method system from three aspects of typhoon risk scenarios, typhoon driven storm surge hazard risk simulation, typhoon storm tide hazard risk assessment, and successful development of typhoon scenario generating tools. (3) exploring the difficult problems of spatial scale geography. In the construction of the spatial coupling model, we try to use the large scale simulation results as the boundary conditions for the mesoscale simulation, in order to reflect the relationship between the risk of typhoon storm disaster risk in the two spatial scales.

【學(xué)位授予單位】:華東師范大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2013
【分類號(hào)】:P731.23

【引證文獻(xiàn)】

相關(guān)博士學(xué)位論文 前2條

1 閆白洋;海平面上升疊加風(fēng)暴潮影響下上海市社會(huì)經(jīng)濟(jì)脆弱性評(píng)價(jià)[D];華東師范大學(xué);2016年

2 葉金玉;基于多維矩陣的臺(tái)風(fēng)災(zāi)害鏈綜合風(fēng)險(xiǎn)評(píng)估模型及其信息圖譜表達(dá)[D];福建師范大學(xué);2015年

相關(guān)碩士學(xué)位論文 前1條

1 林琛琛;不同海平面上升情景模擬下海岸帶災(zāi)害損失評(píng)估[D];廈門大學(xué);2014年

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