Hydraulic Numerical Simulations of La Sabana River Floodplain, Mexico, as a Tool for a Flood Terrain Response Analysis

The floodplain of La Sabana River, Guerrero State, Mexico, was subject to disastrous floods due to the passage of extreme weather phenomena. This is a situation facing many ungauged rivers in Mexico, as well as in other developing countries, where increased urbanization and a lack of monitoring systems make many inhabited areas more vulnerable to flooding. The purpose of this work is to provide a tool for determining the flood terrain response to flooding based on a hydraulic study. This methodology combines a hydrological analysis of the river basin with the floodplain hydraulic study for the precise identification of overflow points and the resulting flood levels. Results show that, for an ungauged river, hydraulic analysis is an essential tool for determining the main potential flood points and establishing whether the river has the capacity to contain floods. Specifically, it is shown that La Sabana River is predisposed to overflow long before the river reaches its maximum flow, even in correspondence with more frequent flood scenarios. This study shows a further application that a hydraulic model can have to improve flood risk preparedness for ungauged rivers of regions where other types of monitoring tools cannot be used.

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Raising risk preparedness by flood risk communication

Natural Hazards and Earth System Science ◽

10.5194/nhess-15-1577-2015 ◽

2015 ◽

Vol 15 (7) ◽

pp. 1577-1595 ◽

Cited By ~ 34

Author(s):

E. Maidl ◽

M. Buchecker

Keyword(s):

Risk Communication ◽

Flood Risk ◽

Information Needs ◽

Flood Hazard ◽

Flood Damage ◽

Communication Strategy ◽

Special Focus ◽

Risk Awareness ◽

Local Authorities ◽

Risk Preparedness

Abstract. During the last decade, most European countries have produced hazard maps of natural hazards, but little is known about how to communicate these maps most efficiently to the public. In October 2011, Zurich's local authorities informed owners of buildings located in the urban flood hazard zone about potential flood damage, the probability of flood events and protection measures. The campaign was based on the assumptions that informing citizens increases their risk awareness and that citizens who are aware of risks are more likely to undertake actions to protect themselves and their property. This study is intended as a contribution to better understand the factors that influence flood risk preparedness, with a special focus on the effects of such a one-way risk communication strategy. We conducted a standardized mail survey of 1500 property owners in the hazard zones in Zurich (response rate main survey: 34 %). The questionnaire included items to measure respondents' risk awareness, risk preparedness, flood experience, information-seeking behaviour, knowledge about flood risk, evaluation of the information material, risk acceptance, attachment to the property and trust in local authorities. Data about the type of property and socio-demographic variables were also collected. Multivariate data analysis revealed that the average level of risk awareness and preparedness was low, but the results confirmed that the campaign had a statistically significant effect on the level of preparedness. The main influencing factors on the intention to prepare for a flood were the extent to which respondents evaluated the information material positively as well as their risk awareness. Respondents who had never taken any previous interest in floods were less likely to read the material. For future campaigns, we therefore recommend repeated communication that is tailored to the information needs of the target population.

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Mathematical modeling and optimal control of corruption dynamics

Asian-European Journal of Mathematics ◽

10.1142/s1793557118500900 ◽

2018 ◽

Vol 11 (06) ◽

pp. 1850090 ◽

Cited By ~ 6

Author(s):

S. Athithan ◽

Mini Ghosh ◽

Xue-Zhi Li

Keyword(s):

Mathematical Modeling ◽

Optimal Control ◽

Developing Countries ◽

Numerical Simulations ◽

Equilibrium Point ◽

Present Model ◽

Control Model ◽

Asymptotically Stable ◽

Epidemiological Modeling ◽

Control Of Corruption

The problem of corruption is of serious concern in all the nations, more so in the developing countries. This paper presents the formulation of a corruption control model and its analysis using the theory of differential equations. We found the equilibria of the model and stability of these equilibria are discussed in detail. The threshold quantity [Formula: see text] which has a similar implication here as in the epidemiological modeling is obtained for the present model. The corruption free equilibrium is found to be stable when [Formula: see text] is less than [Formula: see text] and unstable for [Formula: see text]. The endemic equilibrium which signifies the presence of corrupted individuals in the society exists only when [Formula: see text]. This equilibrium point is locally asymptotically stable whenever it exists. We perform extensive numerical simulations to support the analytical findings. Furthermore, we extend the model to include optimal control and the optimal control profile is obtained to get the maximum control within a stipulated period of time. Our presented results show that the level of corruption in the society can be reduced if corruption control efforts through media/punishments etc. are increased and put in place.

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Life Cycle Cost and Return on Investment as complementary decision variables for urban flood risk management in developing countries

International Journal of Disaster Risk Reduction ◽

10.1016/j.ijdrr.2018.02.026 ◽

2018 ◽

Vol 28 ◽

pp. 88-106 ◽

Cited By ~ 16

Author(s):

Raffaele De Risi ◽

Francesco De Paola ◽

Jane Turpie ◽

Timm Kroeger

Keyword(s):

Risk Management ◽

Developing Countries ◽

Life Cycle ◽

Flood Risk ◽

Return On Investment ◽

Life Cycle Cost ◽

Flood Risk Management ◽

Urban Flood ◽

Decision Variables ◽

Urban Flood Risk

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Exploring the Inadequacy of Pertinent Capacities for Urban Flood Risk Management in the Developing Countries

Journal of Social Sciences ◽

10.3844/jssp.2016.136.151 ◽

2016 ◽

Vol 12 (3) ◽

pp. 136-151

Author(s):

Nkwunonwo Ugonna Chimnonyerem ◽

Chiemelu Emmanuel Ndukwe ◽

Nkwunonwo Ugochi Adannaya

Keyword(s):

Risk Management ◽

Developing Countries ◽

Flood Risk ◽

Flood Risk Management ◽

Urban Flood ◽

Urban Flood Risk

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The Economics of Investment in Flood Risk Reduction in Developing Countries: An Application to the Rocha River Basin of Bolivia

10.18235/0002019 ◽

2019 ◽

Author(s):

David Corderi Novoa ◽

Hori Tsuneki ◽

Luis E. Yamin

Keyword(s):

Developing Countries ◽

Risk Reduction ◽

River Basin ◽

Flood Risk ◽

Flood Risk Reduction

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Uncertainty Estimation During the Process of Flood Risk Assessment in Developing Countries – Case Study in the Pampanga River Basin –

Journal of Disaster Research ◽

10.20965/jdr.2014.p0069 ◽

2014 ◽

Vol 9 (1) ◽

pp. 69-77 ◽

Cited By ~ 5

Author(s):

Toshio Okazumi ◽

◽

Mamoru Miyamoto ◽

Badri Bhakta Shrestha ◽

Maksym Gusyev

Keyword(s):

Risk Assessment ◽

Developing Countries ◽

Data Collection ◽

Flood Risk ◽

Poor Quality ◽

Quality Data ◽

Flood Risk Assessment ◽

Assessment Task ◽

Damage Data ◽

Assessment Results

Flood risk assessment should be one of the basic methods for disaster damage mitigation to identify and estimate potential damage before disasters and to provide appropriate information for countermeasures. Existing methods usually do not account for uncertainty in risk assessment results. The concept of uncertainty is especially important for developing countries where risk assessment results may often be unreliable due to inadequate and poor quality data. We focus on three questions concerning risk assessment results in this study: a) How much does lack of data in developing countries influence flood risk assessment results? b) Which datamost influence the results? and c) Which data should be prioritized in data collection to improve risk assessment effectiveness? We found the largest uncertainty in the damage data among observation, model, and agricultural damage calculations. We conclude that reliable disaster damage data collection must be emphasized to obtain reliable flood risk assessment results and prevent uncertainty where possible. We propose actions to improve assessment task efficiency and investment effectiveness for developing countries.

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MoFlus: An Open-Source Android Software for Fluorescence-Based Point of Care

Journal of Biomedical Science and Bioengineering ◽

10.14710/jbiomes.2021.v1i2.39-48 ◽

2022 ◽

Vol 1 (2) ◽

pp. 39-48

Author(s):

Panji Wisnu Wirawan ◽

Adi Wibowo

Keyword(s):

Developing Countries ◽

Open Source ◽

Rural Areas ◽

Point Of Care ◽

Region Of Interest ◽

High Sensitivity ◽

Science Research ◽

Dynamic Selection ◽

Monitoring Tools ◽

Color Data

High-sensitivity fluorescence-based tests are utilized to monitor various activities in life science research. These tests are specifically used as health monitoring tools to detect diseases. Fluorescence-based test facilities in rural areas and developing countries, however, remain limited. Point-of-care (POC) tests based on fluorescence detection have become a solution to the limitations of fluorescence-based tools in developing countries. POC software for smartphone cameras was generally developed for specific devices and tools, and it ability to select the desired region of interest (ROI) is limited. In this work, we developed Mobile Fluorescence Spectroscopy (MoFlus), an open-source Android software for camera-based POC. We mainly aimed to develop camera-based POC software that can be used for the dynamic selection of ROI; the number of samples; and the types of detection, color, data, and for communication with servers. MoFlus facilitated the use of touch screens and data given that it was developed on the basis of the SurfaceView library in Android and Javascript object notation applications. Moreover, the function and endurance of the app when used multiple times and with different numbers of images were tested.

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Monitoring regional market-building in Africa: a critical perspective

Critical Perspectives on International Business ◽

10.1108/cpoib-12-2016-0069 ◽

2018 ◽

Vol 14 (1) ◽

pp. 49-65

Author(s):

Philippe De Lombaerde

Keyword(s):

Regional Integration ◽

Design Methodology ◽

Socioeconomic Development ◽

Business Strategies ◽

Monitoring Systems ◽

Critical Perspective ◽

Content Type ◽

Regional Market ◽

Monitoring Tools ◽

Development Goals

Purpose African regional integration and market-building processes have not lived up to their expectations in terms of the development of intra-regional international business and the contribution to reaching broader socioeconomic development goals. The purpose of this paper is to critically reflect on the indicator-based monitoring tools that have been designed and used to assess these processes. Design/methodology/approach The assessment is based on a comparative analysis of all relevant cases for which information is publicly available. Complementary expert opinion has also been taken into account. Findings This study finds that there is room for improvement of the existing monitoring systems, both with respect to their governance and technical aspects, so that they can have more impact on the respective integration processes and can better guide the business strategies. Originality/value This is the first systematic comparative assessment of indicator-based monitoring systems for African regional integration.

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