scholarly journals Identification and representation of water pathways from production areas to urban catchment outlets: a case study in France

2014 ◽  
Author(s):  
F. Seveno ◽  
F. Rodriguez ◽  
K. de Bondt ◽  
C. Joannis
Keyword(s):  
Urban Catchment ◽  
Production Areas

scholarly journals Quantifying the Uncertainty Related to Climate Change in the Assessment of Urban Flooding—A Case Study

Water ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 2072
Author(s):  
Liuzzo ◽  
Freni
Keyword(s):  
Climate Change ◽  
Flood Risk ◽  
Southern Italy ◽  
Water Cycle ◽  
Climate Change Scenarios ◽  
Urban Catchment ◽  
Flood Susceptibility ◽  
Rainfall Variations ◽  
Flooding Events

Recent studies have pointed out that climate change is likely to have important implications on the extent and frequency of flooding events. Indeed, the intensification of the water cycle occurring in different areas of the world can dramatically affect the incidence of extreme events and, consequently, the flow in rivers or artificial channels, increasing the probability of disastrous floods. In this context, the criteria for the assessment of flood risk need to be improved to take into account the variability of rainfall due to climate change. In this study, a Bayesian procedure was used to update the parameters of the depth–duration–frequency (DDF) curves and quantify the uncertainty related to their assessment in some climate change scenarios. The critical storm obtained from these updated DDF curves was used as input for the FLO-2D hydraulic model, in order to investigate the effects of climate change on flood risk. The area of study was an urban catchment in Piazza Armerina, a small town located in Southern Italy. Results showed that rainfall variations remarkably affect not only the magnitude of flood events, but also the flood susceptibility of the study area.

Impacts of urbanization on flooding of a coastal urban catchment: a case study of Mumbai City, India

2014 ◽  
Vol 75 (1) ◽  
pp. 887-908 ◽  
Author(s):  
P. E. Zope ◽  
T. I. Eldho ◽  
V. Jothiprakash
Keyword(s):  
Urban Catchment ◽  
Mumbai City

Assessing the potential of using telecommunication microwave links in urban drainage modelling

2013 ◽  
Vol 68 (8) ◽  
pp. 1810-1818 ◽  
Author(s):  
M. Fencl ◽  
J. Rieckermann ◽  
M. Schleiss ◽  
D. Stránský ◽  
V. Bareš
Keyword(s):  
Urban Areas ◽  
Rainfall Variability ◽  
Rain Gauge ◽  
Urban Drainage ◽  
Rainfall Runoff ◽  
Urban Catchment ◽  
Flow Prediction ◽  
Spatial Coverage ◽  
Spatio Temporal

The ability to predict the runoff response of an urban catchment to rainfall is crucial for managing drainage systems effectively and controlling discharges from urban areas. In this paper we assess the potential of commercial microwave links (MWL) to capture the spatio-temporal rainfall dynamics and thus improve urban rainfall-runoff modelling. Specifically, we perform numerical experiments with virtual rainfall fields and compare the results of MWL rainfall reconstructions to those of rain gauge (RG) observations. In a case study, we are able to show that MWL networks in urban areas are sufficiently dense to provide good information on spatio-temporal rainfall variability and can thus considerably improve pipe flow prediction, even in small subcatchments. In addition, the better spatial coverage also improves the control of discharges from urban areas. This is especially beneficial for heavy rainfall, which usually has a high spatial variability that cannot be accurately captured by RG point measurements.

scholarly journals Impact of COVID-19 on Cashew Price and Cashew Producers’ Income in Côte d’Ivoire: A Case Study in Five Departments

2020 ◽  
Vol 12 (8) ◽  
pp. 117
Author(s):  
N’Banan Ouattara ◽  
Clékaman Maïmouna Koné ◽  
Xueping Xiong
Keyword(s):  
Price Index ◽  
Producer Price ◽  
Long Run ◽  
Lack Of Control ◽  
Short Run ◽  
Set Up ◽  
Important Cash Crop ◽  
Production Areas ◽  
The Impact

In Côte d’Ivoire, cashew has become an important cash crop. Nevertheless, Côte d’Ivoire’s cashew relies on the international market, with more than 90% of the production exported as raw nuts. The 2020 commercialization campaign started a few days after the outbreak of COVID-19 in China, which spread worldwide. This work assesses the impact of this pandemic on the cashew price and cashew producers’ income in Côte d’Ivoire. We used the cashew price database over ten weeks in five cashew production areas and an interview-guided to collect the data. We used the Producer Price Index (PPI), descriptive statistic, and theoretical analysis of the income forecasting for data analysis. Results reveal that the lack of funds resulting from the fear of investors has caused a gradual drop in prices since February. This decrease has been more severe when restriction measures have been enforced. The purchase of cashews even stopped in some localities of the study areas. Compared to the first week of the campaign, the COVID-19 pandemic has reduced cashew producer income hugely to 50% in the sixth week and to 37.5% in the ninth and tenth weeks of our observation. Nonetheless, institutional factors such as the lack of control have also contributed to prices decrease. As recommendations, in the short-run, some resilience strategies such as subsidizing the local cashew market should be set up by the authorities. In the mid-term, the country should strengthen the cashew commercialization chain. In long-run, the local cashew transformation should be prioritized instead of raw nuts commercialization.

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