scholarly journals Will There Be Enough Water? A System Dynamics Model to Investigate the Effective Use of Limited Resources for Emergency Water Supply

Systems ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 2
Author(s):  
Lisa Bross ◽  
Steffen Krause
Keyword(s):  
Water Supply ◽  
System Dynamics ◽  
System Analysis ◽  
Water Supply Systems ◽  
System Dynamics Model ◽  
Dynamics Model ◽  
Emergency Situations ◽  
Preparedness Planning ◽  
Emergency Water Supply ◽  
Supply Systems

The increased probability of occurrence of various hazards to water supply systems due to climate change requires the strengthening of their resilience through effective emergency preparedness planning. This paper introduces a method for the assessment of the resilience of water supply systems, including emergency supply measures. With 20 uniquely defined emergency situations, the technical constellations for possible impairments of the water supply are documented. The system analysis developed for each emergency situation is then used to determine and prioritise all suitable supply measures to reduce the supply deficit. Based on the data of a water utility close to Frankfurt, Germany, the developed system dynamics model was used to examine the resource utilisation for the respective emergency situations and to estimate the amount of water provided. The model allows us to scrutinize and compare emergency water supply measures as well as to identify required resources. Furthermore, the method helps us to prioritize measures as well as to make decisions when planning and providing emergency water supply (EWS).

Identification of opportunities to improve efficiency by water consumption assessment

2007 ◽  
Vol 7 (4) ◽  
pp. 57-63
Author(s):  
S.L. Diás ◽  
H. Lucas ◽  
M.do Céu Almeida ◽  
H. Alegre ◽  
M. Vriato ◽  
...  
Keyword(s):  
Water Supply ◽  
Water Consumption ◽  
Demand Management ◽  
Water Supply Systems ◽  
Management Options ◽  
Emergency Situations ◽  
Usage Patterns ◽  
Supply Systems ◽  
Water Uses

Characterization of water demand can be of large value for the management of water supply systems. Especially when water resources are limited, permanently or seasonally, the identification of the types of consumers and its characteristics are essential to identify opportunities to promote efficiency and demand management options. For each customer category, information to be obtained includes individual uses, typical daily usage patterns (average and dispersion), specific characteristics and magnitude. Knowledge and systematization of water uses also provides data to improve water balance and thus allows reducing uncertainty in losses estimation. In this paper, a study carried out in Algarve, a region where stress on water supply resources has been increasing, is presented aiming at better characterise water consumption in the region to improve response both to normal and in emergency situations.

System Dynamics Model Simulation of Sea Battlefield Situation Assessment

2013 ◽  
Vol 811 ◽  
pp. 710-715 ◽  
Author(s):  
Yong Tao Yu ◽  
Ying Ding ◽  
Yong Xin Yu
Keyword(s):  
System Dynamics ◽  
System Analysis ◽  
Model Simulation ◽  
Objective Assessment ◽  
Flow Diagram ◽  
Initial Parameter ◽  
Causality Analysis ◽  
System Dynamics Model ◽  
Dynamics Model ◽  
The Relationship

The fundamental basis of Navy operational command decision support system is efficient to make an objective assessment of the complex dynamic sea battlefield situation. According to the study proposes the sea battlefield situation based on a system dynamics model evaluate simulation. First sea battlefield situation system analysis; second system causality analysis, to establish a causal loop diagram; again is based on the sea battlefield situation to assess the relationship between flow diagram, build SD simulation model; enter the initial parameter; finally, based on the events of the battlefield to enter the initial parameter, assessment simulation sea battlefield situation, analysis simulation conclusion, put forward suggestions.

System Dynamics Model for Designing Optimal Water Strategy for Shandong Province of China

2013 ◽  
Vol 864-867 ◽  
pp. 2232-2235 ◽  
Author(s):  
Lei Wang
Keyword(s):  
Population Growth ◽  
Water Supply ◽  
System Dynamics ◽  
Growth Model ◽  
Water Demand ◽  
Water Cycle ◽  
Shandong Province ◽  
System Dynamics Model ◽  
Dynamics Model ◽  
Cycle System

In order to meet the projected water needs of Shandong Province in the future, the system dynamics model of water cycle system is designed. The system dynamics model of water cycle system consists of three sub-models: population growth model, water demand model and water supply model. We use the logistic growth model to forecast the population in population growth model, use the water price elasticity of water demand to show how water usage responds to price change, and analyze the desalinization rate and the purification rate of water to meet water supply. In addition, by using System Dynamics modeling software, various types of models for water cycle analysis can be simulated. The model output shows this effect clearly..

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