International Science Community Association International Research Journal of Environmental Sciences 2319-1414 7 11 2018 11 22 Characterization of meteorological drought level in oriental Senegal 22 36 EN Sari Kenanga 1 Dept. Biology, Faculty Sciences and Mathematics Diponegoro Univeristy, Jl. Prof. Soedarto, SH, Kampus Tembalang, Semarang, Indonesia Hidayat Jafron W 2 Dept. Biology, Faculty Sciences and Mathematics Diponegoro Univeristy, Jl. Prof. Soedarto, SH, Kampus Tembalang, Semarang, Indonesia Soeprobowati Tri Retnaningsih 3 Dept. Biology, Faculty Sciences and Mathematics Diponegoro Univeristy, Jl. Prof. Soedarto, SH, Kampus Tembalang, Semarang, Indonesia and School of Postgraduate Studies, Diponegoro Univeristy, Semarang 50241, Central Java, Indonesia Sharma Jiban 1 Amrit Campus, Institute of Science and Technology, Tribhuvan University, Kathmandu, Nepal Chauhan Raju 2 Amrit Campus, Institute of Science and Technology, Tribhuvan University, Kathmandu, Nepal Bhatta Sijar 3 Department of Environmental Science, GoldenGate International College, Kathmandu, Nepal Chhetri Ramesh 1 Forest Research Institute (deemed to be) University, Dehradun, India Kumar Parmanand 2 Forest Ecology and Climate Change Division, Forest Research Institute, Dehradun, India Traore Vieux Boukhaly 1 Department of Physics, Faculty of Science and Technology, Cheikh Anta Diop University, Dakar, Senegal Diallo Saidou 2 Department of Physics, Faculty of Science and Technology, Cheikh Anta Diop University, Dakar, Senegal SOW Mamadou Lamine 3 Department of Physics, Faculty of Science and Technology, Cheikh Anta Diop University, Dakar, Senegal Ndiaye Mamadou Lamine 4 Department of Geography, Faculty of Arts and Humanities, Cheikh Anta Diop University, Dakar, Senegal Diouf Rokhaya 5 Environmental Sciences Institute, Faculty of Science and Technology, Cheikh Anta Diop University, Dakar, Senegal Sarr Joseph 6 Department of Physics, Faculty of Science and Technology, Cheikh Anta Diop University, Dakar, Senegal Diaw Amadou Tahirou 7 Department of Geography, Faculty of Arts and Humanities, Cheikh Anta Diop University, Dakar, Senegal Beye Aboubaker Chedikh 8 Department of Physics, Faculty of Science and Technology, Cheikh Anta Diop University, Dakar, Senegal > Research Paper 2018 7 22 2018 11 22 This study is based on rainfall data collected at the Tambacounda, Kédougou, Bakel, Goudiry and Koumpentoum stations over the period 1951-2015. It aims to identify the most notable meteorological droughts by their intensity, duration, frequency and threshold during the study period. To achieve these objectives, we used the standard deviation method because of its robustness in this sense. At the end of this work, we note a great vulnerability and an increased drying up experienced by Eastern Senegal during this period. Dry episodes are generally more persistent and more extensive in time and space than wet ones. These dry episodes reached their paroxysm in 1984, 1991 and 1996 with extremely severe droughts. Among the five stations studied, those of Goudiry, Kédougou and Bakel seem the most affected by the phenomenon of its severity and recurrence. These results would be in our opinion, be a source of reflection for the authorities on the dependence on rainfed agriculture in this area. Copyright@ International Science Community Association