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Stormwater Quality Characteristics and Reuse Analysis of Different underlying surfaces at Wanzhou North Station

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Journal of Environmental & Earth Sciences 2022年第2期4卷 45-53页

作者： Shaochun Yuan Ting Li Qingwei Yang Shun You Tao He Bo Lv Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education Chongqing Jiaotong UniversityChongqing400074China Chongqing Engineering Technology Research Center for Sponge City Construction Chongqing400020China Chongqing Academy of Science and Technology Chongqing401123China

In response to the water shortage in Wanzhou North Station(WNS),the authors investigated the stormwater quality characteristics with different underlying surfaces of WNS and carried out stormwater reuse analysis in conjunction with the InfoWorks ICM *** results show that during heavy,torrential,and moderate rainfall,the road stormwater runoff has the highest concentrations of pollutants,with an average EMC(event mean concentration)value of 206 mg/L for *** the square runoff,the average EMC values of COD,SS,TN,and TP are 108 mg/L,395 mg/L,2.113 mg/L,and 0.128 mg/L,in comparison,the average EMC values of the corresponding indexes for the roof runoff are 65 mg/L,212 mg/L,1.449 mg/L,and 0.086 mg/L,respectively,demonstrating their potential for *** R2(coefficient of determination)of SS and COD in both roof and square runoff are greater than 0.85,with a good correlation,indicating that SS removal is the key to stormwater *** ICM analysis shows that the recyclable volume of rainwater from WNS in 2018 is 29,410 m3,accounting for 61.8%of the total annual *** study is expected to provide an ideal reference for the stormwater management of public buildings in mountainous areas.

关键词： Stormwater quality underlying surface Recyclable rainfall Stormwater utilization

Physical simulation of urban rainfall infiltration

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Journal of China University of Mining and Technology 2008年第2期18卷 293-295,304页

作者： LI Jie ZENG Bing WANG Yan-xia SHEN Lei School of Resource and Earth Sciences China University of Mining ＆ Technology Xuzhou Jiangsu 221008 China

To meet the demand of urban rainwater integrated management,we designed and complemented a physical simulation experimental system of urban rainfall infiltration regulation *** discuss the feasibility of quantitative regulations of urban underlying surface rainfall infiltration conditions and a practical application of a simulated experimental *** a com- prehensive analysis of the composition of an effective rainwater harvesting system and selection of water storage material,we simulated the major parameters of an experimental area rainfall,soil moisture and water storage capacity by providing an effective regulation of the experimental area runoff coefficient,obtained from basic data.

关键词： urban rainwater integrated management infiltration condition underlying surface physical simulation

NUMERICAL EXPERIMENTS ON THE FORMATION OF THE EASTERN PACIFIC SUMMER MONSOON

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Acta meteorologica Sinica 1995年第3期9卷 257-266页

作者：高雷李维亮王斌 Beijing Meteorological Bereau Beijing 100081 Chinese Academy of Meteorological Sciences Beijing 100081 Department of Meteorology University of Hawaii at ManoaUSA

In this paper,we use a two-dimensional primary equation model which contains (1) heating of radiation,(2) heating of condensation,and (3) transfers of sensible and latent heat between air and the underlying *** investigate the causes for the formation of the eastern North Pacific sum- mer monsoon,the data at 110°W are obtained and winds at underlying surface and at 200 hPa are modified under the conditions (1) removing topography and (2) changing meridional sea surface tem- perature (SST) gradient. In the numerical modification,we find that by removing the topography,the center's location of the eastern North Pacific summer monsoon does not change,but the intensity of the summer monsoon is *** the onset of the summer monsoon is delayed to the end of *** tropical east- erly jet is weakened obviously,even changes to westerly *** the other hand,we find that the SST gradient along 110°W influences the eastern North Pacific summer monsoon *** the SST gradient is decreased,the center of the southwest wind near 12°N does not exist any *** intensity of the whole summer monsoon becomes very weak and the circulation pattern of the summer monsoon also changes a lot. Finally,we indicate that both topography and meridional SST gradient play important roles in the occurrence of the eastern North Pacific summer *** meridional SST gradient is the most important factor that triggers the summer monsoon and the topography along 110°W influences the intensity and the onset time of the summer monsoon there mostly.

关键词： summer monsoon sensitivity experiment intensity underlying surface

Climate change in the Sanjiang Plain disturbed by large-scale reclamation

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Journal of Geographical Sciences 2002年第4期12卷 405-412页

作者： YAN Minhua, DENG Wei, CHEN Panqin(Changchun Institute of Geography, CAS, Changchun 130021, China) CAS Changchun Institute of Geography Changchun China (GRID:grid.9227.e) (ISNI:***)

Up to 1949, wetlands stretched continuously and accounted for 80.17% of the total area of plain part of the Sanjiang Plain. However, wetlands in the plain have gone through 4 periods (1956–1960, 1960–1977, 1980–1986, 1986-the present) of large-scale reclamation from 1956 to the present. Over 50% wetlands had changed into agricultural fields. The underlying surface of the plain has changed tremendously. This study investigated the regional climate change by analyzing regional climatic variation and tendency and examining climate jumps over the last 45 years. Monthly records of 5 climatic factors (air temperature, precipitation, atmospheric pressure, sunshine time and wind speed) for 26 meteorological stations covering the period 1955–1999 were used. The annual mean temperature of the study region was tending to go up and increased by 1.2–2.3 °C during the last 45 years. The maximum of annual precipitation decrease in the region was 90 mm over the last 45 years. An abrupt warming of the annual mean temperature occurred in the mid-1980s, which had an increase amplitude of 0.9 °C. Of increase amplitudes of all the seasonal abrupt warming, the largest one was 1.8 °C in the winter since 1987. The plain used to be cold and humid with center of Heilongjiang province even till the late 1960s, for it had an underlying surface of wetlands in the main. However, based on the facts of the climate changes of the plain over the last 45 years, it is held that the plain had a larger warming amplitude than that of area around it in recent years probably resulted from the large-scale reclamation of various kinds of wetlands.

关键词： climate change climate jump underlying surface the Sanjiang Plain large-scale reclamation