PROJECTION OF INTENSITY DURATION FREQUENCY CURVES IN A CONTEXT OF CLIMATE CHANGE IN THE CITY OF LOME (WEST AFRICA).
Journal Title: International Journal of Advanced Research (IJAR) - Year 2019, Vol 7, Issue 6
Abstract
Urban hydrology models are tools for dimensioning and diagnosing drainage systems for runoff from impervious surfaces. These models undergo an irreversible upheaval in the face of climate changes that impact rainfall intensities. This study aims to analyze the effect of climate change on rainfall intensities in the city of Lom? through the elaboration of Intensity Time Frequency (IDF) curves for future climate for three (03) normals from 2011 to 2100. The analysis of rainfall intensities in a changing climate was carried out using the IDF_CC version 1.2 tool on 50 years pluviographers data of the Lom? airport synoptic station. The efficiency of retention basins in a changing climate was determined by comparing the threshold intensity with the theoretical intensities. The results show a large difference between the reference curves and the existing curves obtained from the same historical data. The results also indicate a significant difference in rainfall intensities between current climate and the three future periods considered, regardless of the scenario used and the return period. These results, however, demonstrate a downward trend in intensities for RCP 2.6 and an upward trend in rainfall intensities using the RCP 8.5 scenario which is in fact related to very high greenhouse gas emissions. The hydrological response of retention basins in a changing climate gives very low threshold intensities compared to projections. Drainage of urban stormwater in a changing climate is not effective.
Authors and Affiliations
Gbafa Kodjvi Senanou , Afio Ayarema, Samah Ouro-Djobo E. , Tiem Sonnou and Kokou Kouami.
Keywords
Related Articles
- EP ID EP612041
- DOI 10.21474/IJAR01/9271
- Views 57
- Downloads 0
ITEM ANALYSIS OF MCQS IN BIOCHEMISTRY- TO INCREASE MCQ VALIDITY.
Background: Item analysis is the set of qualitative and quantitative techniques and procedures used to evaluate the characteristics of items of the test before and after the test development and construction. Multiple Ch...
BANANA CULTIVATION IN TAMIL NADU-TREND ANALYSIS.
India is the largest producer of banana in the world. In India Banana ranks second next to Mango in area and production, occupying an area of about 83 lakh hectares with an annual production of 46.26 lakh tons. The impor...
CLINICAL AND ANGIOGRAPHIC PROFILE OF MYOCARDIAL INFARCTION WITH NONOBSTRUCTIVE CORONARY ARTERIES (MINOCA).
Background: Myocardial Infarction with Non-Obstructive Coronary Arteries (MINOCA) remains a challenge in the clinical practice. Objective: This study has been designed to evaluate the prevalence, risk factors, clinical a...
ASSESSMENT OF THE PHYSICOCHEMICAL PROPERTIES OF SELECTED OILS.
The saponification value (Koettstorfer number), acid value were determined for various oils with a comparative view. As we know oils are major food factor, which is needed for human body.These oils are found in market wi...
PERFECTION OF THE FINANCIAL SYSTEM AS A GUARANTOR OF ECONOMIC STABILITY.
International Journal of Advanced Research (IJAR)