Caractérisation intra-annuelle de la variabilité climatique en Côte d’Ivoire

The objective of this work to analyze the impacts of climate change on seasonal weather patterns in Ivory Coast. The study was based on a monthly rainfall and thermometric database recorded at nine synoptic stations representing the main climatic regimes of the Ivory Coast. These data cover the peri...

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Main Authors: Amani Michel Kouassi, Jean-Muller Kouao, Koffi Eugène Kouakou
Format: Article
Language:English
Published: Association AGF 2022-07-01
Series:Bulletin de l’Association de Géographes Français
Subjects:
Online Access:http://journals.openedition.org/bagf/9534
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author Amani Michel Kouassi
Jean-Muller Kouao
Koffi Eugène Kouakou
author_facet Amani Michel Kouassi
Jean-Muller Kouao
Koffi Eugène Kouakou
author_sort Amani Michel Kouassi
collection DOAJ
description The objective of this work to analyze the impacts of climate change on seasonal weather patterns in Ivory Coast. The study was based on a monthly rainfall and thermometric database recorded at nine synoptic stations representing the main climatic regimes of the Ivory Coast. These data cover the period 1941-2016. The methodology adopted is based on the use of climatic indices (Angot index, Péguy index, Moral index, UNEP index) for the study of climate dynamics on an intra-annual scale. The results of the study showed that the seasonal and intra-annual climate in Ivory Coast underwent changes from the period before 1970 to the period after 1970. Indeed, the character "the cold semester is more watered that the hot semester” is more pronounced in the period before 1970 than in the period after 1970 with a tendency for the hottest semesters to be relatively more watered after 1970 in some localities. The period before 1970 records the three consecutive rainiest months with a change in the wettest quarter, that is observed over the period after 1970 in certain stations studied. Across the Ivorian territory, certain climatic zones experienced a change in the rainy season after 1970 in terms of the start, end and duration months. However, the upheaval observed did not affect the type of climate in Ivory Coast. It remained subhumid and humid, despite the decrease in wetness after 1970.
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spelling doaj.art-dd7101ca54514db39b2d4256915409302023-12-06T16:30:45ZengAssociation AGFBulletin de l’Association de Géographes Français0004-53222275-51952022-07-0199228930610.4000/bagf.9534Caractérisation intra-annuelle de la variabilité climatique en Côte d’IvoireAmani Michel KouassiJean-Muller KouaoKoffi Eugène KouakouThe objective of this work to analyze the impacts of climate change on seasonal weather patterns in Ivory Coast. The study was based on a monthly rainfall and thermometric database recorded at nine synoptic stations representing the main climatic regimes of the Ivory Coast. These data cover the period 1941-2016. The methodology adopted is based on the use of climatic indices (Angot index, Péguy index, Moral index, UNEP index) for the study of climate dynamics on an intra-annual scale. The results of the study showed that the seasonal and intra-annual climate in Ivory Coast underwent changes from the period before 1970 to the period after 1970. Indeed, the character "the cold semester is more watered that the hot semester” is more pronounced in the period before 1970 than in the period after 1970 with a tendency for the hottest semesters to be relatively more watered after 1970 in some localities. The period before 1970 records the three consecutive rainiest months with a change in the wettest quarter, that is observed over the period after 1970 in certain stations studied. Across the Ivorian territory, certain climatic zones experienced a change in the rainy season after 1970 in terms of the start, end and duration months. However, the upheaval observed did not affect the type of climate in Ivory Coast. It remained subhumid and humid, despite the decrease in wetness after 1970.http://journals.openedition.org/bagf/9534Climate variabilityIvory CoastClimatic indicesClimatic regimes
spellingShingle Amani Michel Kouassi
Jean-Muller Kouao
Koffi Eugène Kouakou
Caractérisation intra-annuelle de la variabilité climatique en Côte d’Ivoire
Bulletin de l’Association de Géographes Français
Climate variability
Ivory Coast
Climatic indices
Climatic regimes
title Caractérisation intra-annuelle de la variabilité climatique en Côte d’Ivoire
title_full Caractérisation intra-annuelle de la variabilité climatique en Côte d’Ivoire
title_fullStr Caractérisation intra-annuelle de la variabilité climatique en Côte d’Ivoire
title_full_unstemmed Caractérisation intra-annuelle de la variabilité climatique en Côte d’Ivoire
title_short Caractérisation intra-annuelle de la variabilité climatique en Côte d’Ivoire
title_sort caracterisation intra annuelle de la variabilite climatique en cote d ivoire
topic Climate variability
Ivory Coast
Climatic indices
Climatic regimes
url http://journals.openedition.org/bagf/9534
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AT jeanmullerkouao caracterisationintraannuelledelavariabiliteclimatiqueencotedivoire
AT koffieugenekouakou caracterisationintraannuelledelavariabiliteclimatiqueencotedivoire