Flood characteristics and flood protection concepts in the Reuss catchment basin

The aim of the analysis involved in the article is to define the significance of separate factors affecting the natural process of retention in the catchment basin thus can assess the priorities in undertaking flood protection. The analysis was based on results achieved by using a new method how to determine water retention in the catchment basin. Resulting dependent variables of effective long-time retention, effective short-time retention, effective total retention and maximum specific runoff for single catchment basins of the Opava river, were evaluated statistically by means of linear regression and correlation analysis, stepwise regression and multiple regression. It is possible to say, that the results achieved may suggest to re-evaluate some established views concerning the role of separate factors influencing natural retention of the landscape. The results of the research testify the fact that in case of densely settled floodplain regions the combined flood protection measures, i.e. as technical and nature friendly ones should be applied. Due to relatively small collection of observations it is not possible to generalize all the conclusions absolutely, nevertheless they have a certain validity at least for the given area.

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Shortage and surplus of water in the socio-hydrological context

Proceedings of the International Association of Hydrological Sciences ◽

10.5194/piahs-364-292-2014 ◽

2014 ◽

Vol 364 ◽

pp. 292-298 ◽

Cited By ~ 2

Author(s):

A. Schumann ◽

d. Nijssen

Keyword(s):

Flood Damage ◽

Flood Protection ◽

Economic Changes ◽

Monitoring Model ◽

Planning Approach ◽

The Social ◽

Water Surplus ◽

Short Time ◽

Flood Characteristics

Abstract. Balancing the temporal variability of hydrological conditions in the long- and short-term is often essential for steady socio-economic conditions. However, this equilibrium is very fragile in many cases. Hydrological changes or socio-economic changes may destroy it in a short time. If we extend the bearing capacity of socio-hydrological systems we increase, in many cases, the harmful consequences of failures. Here, two case studies are discussed to illustrate these problems. The limited success at adapting water resources to increasing human requirements without consideration of the natural capacities will be discussed with the example of water use for irrigation in northeastern China. The demand for a new planning approach, which is based on a combination of monitoring, model-based impact assessments and spatial distributed planning, is demonstrated. The problems of water surplus, which becomes evident during floods, are discussed in a second case study. It is shown that flood protection depends strongly on expectations of flood characteristics. The gap between the social requirement for complete flood prevention and the remaining risk of flood damage becomes obvious. An increase of risk-awareness would be more sustainable than promises of flood protection, which are the basis for technical measures to affect floods and (or) to prevent flood damages.

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Novel solutions to a traditional method of property-level flood protection: technical insights into innovative door aperture guards

The Sustainable City IX ◽

10.2495/sc141052 ◽

2014 ◽

Author(s):

D. W. Beddoes ◽

C. A. Booth

Keyword(s):

Traditional Method ◽

Flood Protection

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Formation of water chemistry in the Modonkul river under the action of mine drainage effluent

MINING INFORMATIONAL AND ANALYTICAL BULLETIN ◽

10.25018/0236-1493-2020-6-0-56-66 ◽

2020 ◽

pp. 56-66

Author(s):

Z. I. Khazheeva ◽

S. S. Sanzhanova

Keyword(s):

Water Chemistry ◽

Mine Drainage ◽

High Concentration ◽

Catchment Basin ◽

Sulfate Anion ◽

Concentrated Flow ◽

Sodium Calcium ◽

Calcium Cation ◽

Calcium Magnesium ◽

The Town

The Dzhida ore field in the Zakamensk district of Buryatia features high concentration of mineralization within a small area. The Dzhida deposit is composed of complex ore. The ore field contains commercial-value primary deposits: Pervomai stockwork of molybdenum, Kholtoson tungsten lode and Inkur stockwork of tungsten. The Modonkul river catchment basin lies inside the Dzhida ore field. A real threat to the town of Zakamensk is created by manmade sand-bulk (old) tailings and slurry dump. By now, the concentrated flow of natural and man-made sand enters the low terrace and floodplain of the Modonkul river in the form of a talus train. This study is focused on the influence of the mine drainage effluent and the Inkur tributary on the water chemistry in the Modonkul river. 80 water samples were taken from the surface layer 0-0.5 m thick at five stations. Physicochemical indices of water were measured at the water sampling points, and the water chemistry was analyzed in a laboratory. In the background conditions, cations and anions in the Modonkul water chemistry range in decreasing order as follows: Са2+ > Mg2+ > Na++К+ и HCO - > SO 2- > Cl-. In the zone of mixture of natural and mine process water, the chemistry changes: from hydrocarbonate to sulfate (anion), from calcium-magnesium to sodium-calcium (cation). Downstream the natural chemistry changes to the hydrocabonate-sulfate composition, with prevailing content of calcium in cations. Iron content of water lowers 3-4 times after influx of mine effluents, while the contents of Mn, Zn, Co and Cd grow and then decrease downstream.

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Summary of basin and flood characteristics for unregulated basins in New Mexico

Open-File Report ◽

10.3133/ofr811071 ◽

1981 ◽

Author(s):

Richard P. Thomas ◽

April Dunne

Keyword(s):

New Mexico ◽

Flood Characteristics

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Effectiveness of Flood Protection Project Valuation Methods

Olsztyn Economic Journal ◽

10.31648/oej.3152 ◽

2015 ◽

Vol 10 (3) ◽

pp. 275-289

Author(s):

Tadeusz Liziński ◽

Marcin Bukowski ◽

Anna Wróblewska

Keyword(s):

Essential Element ◽

Weather Conditions ◽

Point Of View ◽

Flood Protection ◽

Costs And Benefits ◽

Protection Measures ◽

Investment Projects ◽

Market Values ◽

Project Valuation ◽

The Subject

Projects for flood protection are increasingly the subject of investment projects in the field of water management. This is related to the increasing frequency of worldwide threats caused by extreme weather conditions, including extremely high rainfall causing floods. Technical and nontechnical flood protection measures are also increasing in importance. In the decision-making process, it is necessary to take into account both the costs and benefits of avoiding losses, including an analysis of social benefits, whose valuation of non-market goods is an essential element. A comprehensive account of projects in the field of flood protection based on the estimated costs and benefits of the investment allows the economic efficiency from a general social point of view to be determined. Previous evaluations of the effectiveness of investment projects have mainly taken into account only categories and market values. The aim of the article is to identify the possibilities to expand the values of non-market assessments and categories formulated on the basis of the theoretical economics of the environment.

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Hydrological and hydrochemical research of the mouths of the small rivers flowing to the White sea in the winter low water season of 2019

Океанология ◽

10.31857/s0030-15745961089-1092 ◽

2019 ◽

Vol 59 (6) ◽

pp. 1089-1092

Author(s):

I. V. Miskevich ◽

A. V. Leshchev ◽

D. S. Moseev ◽

A. S. Lokhov

Keyword(s):

White Sea ◽

Small Rivers ◽

The White Sea ◽

Hydrochemical Parameters ◽

Catchment Basin ◽

Onega Bay ◽

Short Period ◽

Tidal Estuaries ◽

Hydrochemical Studies ◽

River Mouths

In the winter low water season in March and the first week of April 2019, complex hydrological and hydrochemical studies were carried out at the mouths of two small rivers of the White Sea catchment basin (the Mudyuga river, which flows into the Dvina Bay, and the Tamitsa river, which flows into the Onega Bay). The results indicate significant differences in the short-period variability of hydrological and hydrochemical parameters in the winter in the studied river mouths compared with the characteristics observed in the tidal estuaries of large and medium rivers, as well as in the mouths of small rivers of the southern seas.

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