scholarly journals The influence of flood discharge on the migration and transformation of typical organic pollutants: A case study on the Danjiangkou Reservoir

2022 ◽  
Vol 34 (1) ◽  
pp. 108-117
Author(s):  
Zhang Sheng ◽  
◽  
Su Ziying ◽  
Lin Li ◽  
Tao Jingxiang ◽  
...  
Keyword(s):  
Organic Pollutants ◽  
Danjiangkou Reservoir ◽  
Flood Discharge

scholarly journals Analysis of urban flood using synthetic unit hydrograph (SUH) and flood mitigation strategies along way Halim River: a case study on Seroja street, Tanjung Senang District

2021 ◽  
Vol 331 ◽  
pp. 07015
Author(s):  
Dian Pratiwi ◽  
Arniza Fitri ◽  
Arlina Phelia ◽  
Nabila Annisa Amara Adma ◽  
Kastamto
Keyword(s):  
Mitigation Strategies ◽  
Flood Mitigation ◽  
Trigger Factor ◽  
Urban Flooding ◽  
Unit Hydrograph ◽  
Urban Flood ◽  
Flood Discharge ◽  
Absorption Area ◽  
Synthetic Unit Hydrograph

In the urban area, flooding becomes the most common disaster that has not been resolved until today. The utilization of river border area into housing and lack of absorption area becomes the trigger factor of urban flooding, as what is happening around Way Halim River on Seroja street. In this area, floods often happen during the rainy season, with the latest events recorded on January 21st, 2021. Analysis of flood intensities and discharges can be parameters for the decision-making of flood mitigation strategies. This study aims to analyze the flood discharges along Way Halim River, Seroja street by comparing the flood discharges resulting from three analysis methods of Synthetic Unit Hydrograph (SUH) including Gama I SUH, Nakayasu SUH, and Snyder SUH. Finally, suitable flood mitigation strategies were also proposed in this study based on the flood discharges and rain intensities. The results showed that Nakayasu SUH had the highest peak flood discharge than Snyder SUH and Gama I SUH. Based on the results of the investigation of land suitability; and analysis of rainfall intensities and flood discharges, the proposed flood mitigation in Seroja street is by installing biopore infiltration holes along Seroja street for storing water and reducing the risk of flooding in the area.

Levels and Spatial Distribution of Persistent Organic Pollutants in the Environment: A Case Study of German Forest Soils

2013 ◽  
Vol 47 (22) ◽  
pp. 12703-12714 ◽  
Author(s):  
Bernhard Aichner ◽  
Bernd Bussian ◽  
Petra Lehnik-Habrink ◽  
Sebastian Hein
Keyword(s):  
Spatial Distribution ◽  
Organic Pollutants ◽  
Persistent Organic Pollutants ◽  
Forest Soils

scholarly journals Deriving Design Flood Hydrograph Based on Conditional Distribution: A Case Study of Danjiangkou Reservoir in Hanjiang Basin

2016 ◽  
Vol 2016 ◽  
pp. 1-16 ◽  
Author(s):  
Changjiang Xu ◽  
Jiabo Yin ◽  
Shenglian Guo ◽  
Zhangjun Liu ◽  
Xingjun Hong
Keyword(s):  
Joint Probability ◽  
Flood Frequency ◽  
Peak Discharge ◽  
Flood Frequency Analysis ◽  
Design Flood ◽  
Copula Functions ◽  
Danjiangkou Reservoir ◽  
Flood Peak ◽  
Flood Hydrograph

Design flood hydrograph (DFH) for a dam is the flood of suitable probability and magnitude adopted to ensure safety of the dam in accordance with appropriate design standards. Estimated quantiles of peak discharge and flood volumes are necessary for deriving the DFH, which are mutually correlated and need to be described by multivariate analysis methods. The joint probability distributions of peak discharge and flood volumes were established using copula functions. Then the general formulae of conditional most likely composition (CMLC) and conditional expectation composition (CEC) methods that consider the inherent relationship between flood peak and volumes were derived for estimating DFH. The Danjiangkou reservoir in Hanjiang basin was selected as a case study. The design values of flood volumes and 90% confidence intervals with different peak discharges were estimated by the proposed methods. The performance of CMLC and CEC methods was also compared with conventional flood frequency analysis, and the results show that CMLC method performs best for both bivariate and trivariate distributions which has the smallest relative error and root mean square error. The proposed CMLC method has strong statistical basis with unique design flood composition scheme and provides an alternative way for deriving DFH.

Solid waste containing persistent organic pollutants in Serbia: From precautionary measures to the final treatment (case study)

2016 ◽  
Vol 34 (7) ◽  
pp. 677-685 ◽  
Author(s):  
Hristina Stevanovic-Carapina ◽  
Jelena Milic ◽  
Marijana Curcic ◽  
Jasminka Randjelovic ◽  
Katarina Krinulovic ◽  
...  
Keyword(s):  
Solid Waste ◽  
Organic Pollutants ◽  
Persistent Organic Pollutants ◽  
Final Treatment ◽  
Precautionary Measures

scholarly journals Optimization of Flood Protection by Semi-Natural Means and Retention in the Catchment Area: A Case Study of Litavka River (Czech Republic)

2013 ◽  
Vol 21 (1) ◽  
pp. 51-66 ◽  
Author(s):  
Radek Roub ◽  
Pavel Novák ◽  
Tomáš Hejduk
Keyword(s):  
Czech Republic ◽  
Catchment Area ◽  
Natural Transformation ◽  
Entire Surface ◽  
The Czech Republic ◽  
Flood Discharge ◽  
Water Courses ◽  
Technical Measures ◽  
Natural Means

Abstract Of all natural disasters, floods represent the most serious threat to the territory of the Czech Republic. This is given by the situation of the Czech Republic at the continental as well as the worldwide scale. At present, the design of anti-flood measures is mostly based on technical measures, without considering improvements in the hydromorphological status according to the Framework Directive on Water Management and without considering the natural transformation of flood discharge in the alluvial plains of water courses. This report presents a design for the optimization of anti-flood measures in the pilot catchment of the Litavka River, in which we propose particular measures for the catchment for its entire surface while providing a good hydromorphological status. We also wanted to quantify the proposed measures leading to the increased retention and accumulation capacities of the catchment area.

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