Study of the Spatial and Temporal Dynamics of Rainfall over the Period 1991-2020 in Burkina Faso

Authors

  • Yélézouomin Stéphane Corentin Some Laboratoire de Recherche en Sciences Humaines et Sociales (LABOSHS), Université Norbert ZONGO, Koudougou, Burkina Faso
  • Alimata Zorom Faculty of Human Sciences, Department of Geography, Norbert Zongo University, Koudougou, Burkina Faso
  • Wièmè Some Laboratoire de Recherche en Sciences Humaines et Sociales (LABOSHS), Université Norbert ZONGO, Koudougou, Burkina Faso, Permanent Secretariat in charge of crisis management and vulnerability in livestock

Keywords:

Burkina Faso, rainfall dynamic, spatial and temporal analysis

Abstract

The spatial and temporal variability of rainfall is a major constraint for the development of socio-economic activities in Burkina Faso. The objective of this work is to study the spatial and temporal dynamics of rainfall across the country in order to guide policy measures for major disaster management. The methodology is based on the mapping of statistical metrics calculated on time series of annual cumulated rainfall from CHIRPS data and the annual number of rainy days estimated by the ANAM over the period 1991-2020. The results indicate an average variability in rainfall over the 1991-2020 normal. The persistence of drought in the Far West is accompanied by a loss of rainfall. The approach based on the two data sources presents similar information for the assessment of rainfall variability, complementary for the estimated rainfall trend areas, and the frequency of drought and contradictory for assessing the frequency of wet years.

References

Gautier. F, Lubes-Niel.H, Sabatier. R, Masson. J. M, Paturel. J. E & Servat.E (1998). Variabilité du régime pluviométrique de l'Afrique de l'Ouest non sahélienne entre 1950 et 1989 (Variability of rainfall patterns in non-Saharan West Africa between 1950 and 1989). Hydrol. Sci. J., 43 (6) 921 - 936. Doi : 10.1080/02626669809492187 https://doi.org/10.1080/02626669809492187

Amoussou. E, Camberlin. P Et Mahe. G (2012). Impact de la variabilité climatique et du barrage Nangbéto sur l’hydrologie du système Mono-Couffo (Ouest Afrique) (Impact of climate variability and the Nangbéto dam on the hydrology of the Mono-Couffo system (West Africa)). Hydrol. Sci. J., 57 (4) 805 - 817.

Thiombiano, A., Schmidt, M., & Kreft, H. (2006). In?uence du gradient climatique sur la distribution des espèces de Combretaceae au Burkina Faso (Afrique de l’Ouest) (In?uence du gradient climatique sur la distribution des espèces de Combretaceae au Burkina Faso) (West Africa). Candollea, 61(1), 189?213.

CILSS, 2004. Vingt ans de prévention des crises alimentaires au Sahel. Bilan et perspectives [WWW Document] (Twenty years of prevention of food crises in the Sahel. Review and Outlook). URL https://www.food-security.net/document/vingt-ans-de-prevention-des-crises-alimentaires-au-sahel-bilan-et-perspectives/(accessed 9.3.21)

Ministère de l'environnement et des ressources halieutiques, 2015, Plan national d’adaptation aux changements climatiques (PNA) du Burkina Faso (Burkina Faso’s National Climate Change Adaptation Plan (NAP)) 155p https://www4.unfccc.int/sites/NAPC/Documents/Parties/PNA_Version_version%20francaise%20finale%20BF.pdf

Dewals et al., 2015. Modélisation hydraulique détaillée d’inondations extrêmes sur un tronçon transnational de la Meuse (Detailed hydraulic modelling of extreme floods on a transnational section of the Meuse). La Houille Blanche, 101(2):75-81 ; https://doi.org/10.1051/lhb/20150022

Sene, S., Ozer, P, 2002. Evolution pluviométrique et relation inondations - événements pluvieux au Sénégal (Rainfall trends and the relationship between floods - rainy events in Senegal) Bulletin de la Société de Géographie de Liège, 42, 27-33.

Ali, A., 2010. Variabilité et changements du climat au Sahel?: ce que l’observation nous apprend sur la situation actuelle (Climate variability and change in the Sahel: what observation tells us about the current situation). https://www.inter-reseaux.org/wp- content/uploads/pdf_p13_14_Agrhymet.pdf

Zhang, W., Brandt, M., Tong, X., Tian, Q., Fensholt, R., 2018. Impacts of the seasonal distribution of rainfall on vegetation productivity across the Sahel. Biogeosciences 15, 319–330. https://doi.org/10.5194/bg-15-319-2018

Sillmann, J., Kharin, V.V., Zhang, X., Zwiers, F.W., Bronaugh, D., 2013. Climate extremes indices in the CMIP5 multimodel ensemble : Part 1. Model evaluation in the present climate. Journal of Geophysical Research : Atmospheres 118, 1716–1733. https://doi.org/10.1002/jgrd.50203

Lodoun, T., Giannini, A., Traoré, P.S., Somé, L., Sanon, M., Vaksmann, M., Rasolodimby, J.M., 2013. Changes in seasonal descriptors of precipitation in Burkina Faso associated with late 20th century drought and recovery in West Africa. Environmental Development 5, 96–108. https://doi.org/10.1016/j.envdev.2012.11.010

Durgun, Y.Ö., Gobin, A., Duveiller, G., Tychon, B., 2020. A study on trade-offs between spatial resolution and temporal sampling density for wheat yield estimation using both thermal and calendar time. International Journal of Applied Earth Observation and Geoinformation 86, 101988. https://doi.org/10.1016/j.jag.2019.101988

Alvar-Beltrán, J., Dao, A., Dalla Marta, A., Heureux, A., Sanou, J., Orlandini, S., 2020. Farmers’ Perceptions of Climate Change and Agricultural Adaptation in Burkina Faso. Atmosphere 11, 827. https://doi.org/10.3390/atmos11080827

Lacaze, B., Aït-Bachir, S., Sommer, S., (2008). Analyse diachronique de l’efficacité des pluies pour la production végétale dans le bassin méditerranéen de 1982 à 1996 (Diachronic analysis of rainfall efficiency for crop production in the Mediterranean basin from 1982 to 1996).3, 11.

Le Houérou, H., 1992. Relations entre la variabilité des précipitations et celle des productions primaire et secondaire en zone aride (Relationships between rainfall variability and dryland primary and secondary production)- fdi : 37358- Horizon[WWW Document] URLhttps://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers11-10/37358.pdf (accessed 9.11.21).

Nouaceur, Z., Murarescu, O., 2020. Rainfall Variability and Trend Analysis of Rainfall in West Africa (Senegal, Mauritania, Burkina Faso). Water 12, 1754. https://doi.org/10.3390/w12061754

Bichet, A., Diedhiou, A., 2018. West African Sahel has become wetter during the last 30 years, but dry spells are shorter and more frequent. Climate Research 75. https://doi.org/10.3354/cr01515

Martin, E.R., Thorncroft, C., Booth, B.B.B., 2014. The Multidecadal Atlantic SST—Sahel Rainfall Teleconnection in CMIP5 Simulations. Journal of Climate 27, 784–806. https://doi.org/10.1175/JCLI-D-13-00242.1

Blakeley, S.L., Sweeney, S., Husak, G., Harrison, L., Funk, C., Peterson, P., Osgood, D.E., 2020. Identifying Rainfall and Reference Evapotranspiration Trends in West Africa to Support Drought Insurance. Remote Sensing 12, 2432. https://doi.org/10.3390/rs12152432

Ali, A., Lebel, T., Amani, A., 2008. Signification et usage de l’indice pluviométrique au Sahel (Significance and use of the rainfall index in the Sahel). Sécheresse (Montrouge) 19, 227–235.

Downloads

Published

2022-10-02

How to Cite

Yélézouomin Stéphane Corentin Some, Alimata Zorom, & Wièmè Some. (2022). Study of the Spatial and Temporal Dynamics of Rainfall over the Period 1991-2020 in Burkina Faso. American Academic Scientific Research Journal for Engineering, Technology, and Sciences, 90(1), 52–62. Retrieved from https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/7967

Issue

Section

Articles