LARHYSS Journal
Volume 17, Numéro 4, Pages 81-96
2020-12-14
Authors : Soro Tanina Drissa . Fossou N'guessan Marie-rosine . Ble Louan Odile . Soro Gbombélé . Ahoussi Kouassi Ernest . Adjiri Oi Adjiri . Oga Yéi Marie Solange . Soro Nagnin .
ABSTRACT The present study aim is the knowledge of tablecloth behaviour of High Bandama basin for the best management of groundwater. It was based on satellite Landsat TM images and piezometric data acquired during three campaigns (august 2009, april 2010 and may 2012) exploitation. Thus, the statistical analysis of fracturing shows that the main direction of fracturing is N0-10 with 14 per cent. The most secondary direction is N70-80 with eight per cent. These directions should allowed water infiltration. Piezometric study reveals that seasonal variations of ranges do not exceed 4 meters unlike the structures of Dassoumgbo, Sépénédiokaha and Fonnikaha which register respectively negatives variations of -4 m, -5.06 m and –5.485 m. At the opposite, there are small positives variations of water level ranging from +0.025 m (Koutiénédougou) to +0.9 m (M’bolokakaha). They highlight some weak water upwellings levels and thus show that the tablecloth reaction is not immediate after rainy season. These upwellings are gradual and seem to reflect difficult conditions of groundwater supply. The interannual ranges of the aquifer during the three campaigns are less than 5.5 meters. Piezometric map sketch during the high flow and less flow of water doesn’t reveal some notice variations. The overlaying of the density map fracturing and the piezometric variations map for points followed during august 2009 and april 2010 campaigns shows it is difficult to establish relationship between piezometric and fracturing. This study constitutes an important support for groundwater resources management in the basin.
Keywords: Fracturing, Piezometry, Variations ranges, High Bandama, Côte d’Ivoire
بوسالم أحلام
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عابد يوسف
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ص 117-132.
Yahia Zeghoudi
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pages 74-88.
Sissoko Daouda
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Drogba Landry
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Konan Landry
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N'da Hermann
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N'dri Oka Dominique
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pages 9-14.
Sissoko Daouda
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Tokpa Valentin
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Djimdé Moussa
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Diallo Oumar
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Kayentao Kassoum
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Kone Noukhoum
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Haidara Aderehime
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pages 21-28.
Assoko Adjoa Victoire
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Kouassi Amani Michel
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Nassa Relwinde Abdoul-karim
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pages 85-111.