Indicators of Spatio-Temporal Changes in Rainfall in Forest Guinea — Oak Academic Publishing
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Indicators of Spatio-Temporal Changes in Rainfall in Forest Guinea
Laboratoire d’Enseignement et Recherche en Energétique Appliquée (LEREA), Département de Physique, Faculté des Sciences, Université Gamal Abdel Nasser de Conakry, Conakry, République de Guinée
,
Laboratoire d’Enseignement et Recherche en Energétique Appliquée (LEREA), Département de Physique, Faculté des Sciences, Université Gamal Abdel Nasser de Conakry, Conakry, République de Guinée
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Département de Météorologie, Faculté de Science de l’Environnement, Université de N’Zérékoré, Nzérékoré, République de Guinée
1 Laboratoire d’Enseignement et Recherche en Energétique Appliquée (LEREA), Département de Physique, Faculté des Sciences, Université Gamal Abdel Nasser de Conakry, Conakry, République de Guinée
2 Laboratoire d’Enseignement et Recherche en Energétique Appliquée (LEREA), Département de Physique, Faculté des Sciences, Université Gamal Abdel Nasser de Conakry, Conakry, République de Guinée
3 Département de Météorologie, Faculté de Science de l’Environnement, Université de N’Zérékoré, Nzérékoré, République de Guinée
The Republic of Guinea has a humid tropical climate, characterized by a dry season influenced by the harmattan and a rainy season influenced by the West African monsoon, with an average annual rainfall of 1835 mm. In its southern part, rainfall events are intense due to the early arrival and late retreat of the Inter-Tropical Convergence Zone (ITCZ). This study examines statistical indicators of the spatio-temporal variability of rainfall in the forest region (south) of the Republic of Guinea. The methodological approach adopted revolves around the collection and processing of data and the analysis of results. The data used are provided by the Agency National of Meteorology (ANM), covering a period from 1994 to 2023, and come from four (4) synoptic meteorological stations in Guinea Forester. Our results show that, since 1994, Forester Guinea has experienced rainfall variability marked by alternating rainfall heights with variations linked to altitude. We found that average monthly rainfall varies from station to station: 151.6 mm and 165.1 mm for Beyla and N’Zérékoré stations, 182.7 mm and 188.8 mm for Macenta and Yomou stations. Annual rainfall averages between 1800 and 2300 mm, depending on the location.
KeywordsIndicatorsEventsRainfallGuinea-Forester
Aguilar, E., Aziz Barry, A., Brunet, M., Ekang, L., Fernandes, A., Massoukina, M., et al. (2009) Changes in Temperature and Precipitation Extremes in Western Central Africa, Guinea Conakry, and Zimbabwe, 1955-2006. Journal of Geophysical Research : Atmospheres , 114, D02115. https://doi.org/10.1029/2008jd011010
Amraoui, L., Sarr, M.A. and Soto, D. (2011) Analyse rétrospective de l’évolution climatique récente en Afrique du Nord-Ouest. Physio - Géo , 5, 125-142. https://doi.org/10.4000/physio-geo.1959
Ardoin, B.S. (2004) Variabilite hydroclimatique et impacts sur les ressources en eau de grands bassins hydrographiques en zone soudano-sahelienne. Université de Montpellier II. https://www.documentation.ird.fr/hor/fdi:010036277
Bambara, D., Thiombiano, A. and Hien, V. (2016) Changements climatiques en zones nord-soudanienne et sub-sahélienne du Burkina Faso: Comparaison entre savoirs paysans et connaissances scientifiques. Revue d ’ Écologie ( La Terre et La Vie ), 71, 35-58. https://doi.org/10.3406/revec.2016.1864
Béavogui, K., Badiane, D., Sall, S.M. and Diaby, I. (2011) Approche climatologique des phenomenes pluvio-orageux en guinee. Journal des Sciences Pour l ’ Ingénieur , 13, 71-77. https://www.scirp.org/reference/referencespapers?referenceid=2628800
Dacosta, H., Konaté, Y.K. and Malou, R. (2002) La variabilité spatio-temporelle des précipitations au Sénégal depuis un siècle. 2002 FRIEND Conference , Le Cap, 18-22 March 2002, 499-506. https://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=14056028
Dai, A., Lamb, P.J., Trenberth, K.E., Hulme, M., Jones, P.D. and Xie, P. (2004) The Recent Sahel Drought Is Real. International Journal of Climatology , 24, 1323-1331. https://doi.org/10.1002/joc.1083
Chamani, E., Rezaei, Z., Dastjerdi, K., Javanshir, S., Khorsandi, K. and Mohammadi, G.A. (2019) Evaluation of Some Genes and Proteins Involved in Apoptosis on Human Chronic Myeloid Leukemia Cells (K562 Cells) by Datura innoxia Leaves Aqueous Extract. Journal of Biomolecular Structure and Dynamics , 38, 4838-4849. https://doi.org/10.1080/07391102.2019.1691661
Fossou, R.M.N.G., Soro, E.G., Dosso, S. and Gone, L.D. (2020) Variabilité de la pluviométrie en afrique de l’ouest: Cas de la région du n’zi au centre-est de la côte d’ivoire. Revue Ivoirienne des Sciences et Technologie , 36, 171-192. https://revist.net/REVIST_36/11-ST-756.pdf
Heffernan, O. (2013) The Dry Facts. Nature , 501, S2-S3. https://doi.org/10.1038/501s2a
Demers-Bouffard, D. (2021) Climate Change Impacts: Health Effects, Vulnerabilities, and Adaptation Measures. Institut National de Santé Publique du Québec. https://coilink.org/20.500.12592/hbkdzf
Ibrahima, K.K., Saïdou, M.S., Daouda, B., Idrissa, D. and Ibrahima, D. (2019) Seasonal Variability of Rainfall and Thunderstorm in Guinea over the Period 1981 to 2010. African Journal of Environmental Science and Technology , 13, 324-341. https://doi.org/10.5897/ajest2019.2684
Maman, I. (2022) Information agropastorale et resilience des agropasteurs de la region de tahoua au niger. Afrique Science , 20, 13-22. https://www.afriquescience.net/admin/postpdfs/a259c406a61c9e04c9e0763e07cc5b5f1720198947.pdf
Masih, I., Maskey, S., Mussá, F.E.F. and Trambauer, P. (2014) A Review of Droughts on the African Continent: A Geospatial and Long-Term Perspective. Hydrology and Earth System Sciences , 18, 3635-3649. https://doi.org/10.5194/hess-18-3635-2014
McKee, T.B., Doesken, N.J. and Kleist, J. (1993) The Relationship of Drought Frequency and Duration to Time Scales. 8 th Conference on Applied Climatology , Anaheim, 17-22 January 1993, 179-184. https://www.scirp.org/reference/ReferencesPapers?ReferenceID=2099290
Sahani, M., Jan, M., Ine, V., Philippe, T. and Pierre, O. (2012) Evolution des caracteristiques pluviometriques dans la zone urbaine de butembo (RDC) de 1957 À 2010. Geo - Eco - Trop : Revue Internationale de Géologie , de Géographie et d ’ Écologie Tropicales , 36, 121-136. https://hdl.handle.net/2268/156133
New, M., Hewitson, B., Stephenson, D.B., Tsiga, A., Kruger, A., Manhique, A., et al. (2006) Evidence of Trends in Daily Climate Extremes over Southern and West Africa. Journal of Geophysical Research : Atmospheres , 111, D14102. https://doi.org/10.1029/2005jd006289
Nicholson, S.E. (1994) Recent Rainfall Fluctuations in Africa and Their Relationship to Past Conditions over the Continent. The Holocene , 4, 121-131. https://doi.org/10.1177/095968369400400202
Panthou, G., Vischel, T. and Lebel, T. (2014) Recent Trends in the Regime of Extreme Rainfall in the Central Sahel. International Journal of Climatology , 34, 3998-4006. https://doi.org/10.1002/joc.3984
Pettitt, A.N. (1979) A Non-Parametric Approach to the Change-Point Problem. Ap plied Statistics , 28, 126-135. https://doi.org/10.2307/2346729
Sambou, S., Dacosta, H. and Paturel, J. (2018) Variabilité spatio-temporelle des pluies de 1932 à 2014 dans le bassin versant du fleuve Kayanga/Gêba (République de Guinée, Sénégal, Guinée-Bissau). Physio - Géo , 12, 61-78. https://doi.org/10.4000/physio-geo.5798
Savane, I., Coulibaly, K.M. and Gioan, P. (2001) Variabilité Climatique et Ressources en Eaux Souterraines dans la Région Semi-Montagneuse de Man. Sécheresse , 12, 231-237. https://www.scirp.org/reference/referencespapers?referenceid=3912631
Taylor, C.M., Belušić, D., Guichard, F., Parker, D.J., Vischel, T., Bock, O., et al. (2017) Frequency of Extreme Sahelian Storms Tripled since 1982 in Satellite Observations. Nature , 544, 475-478. https://doi.org/10.1038/nature22069
Nouaceur, Z. and Murarescu, O. (2020) Rainfall Variability and Trend Analysis of Rainfall in West Africa (Senegal, Mauritania, Burkina Faso). Water , 12, Article 1754. https://doi.org/10.3390/w12061754