Rock art in sub-Saharan Mali

Antiquity ◽  
2001 ◽  
Vol 75 (290) ◽  
pp. 799-800
Author(s):  
Cornelia Kleinitz

Sub-Saharan West Africa has remained largely a blank space on the world rock-art map, in spite of a steady trickle of reports during the past century on pictograph and petroglyph sites in the West African sahel and savanna belts. It seems that the nature of the rock art reported, predominantly ‘geometric’ and saurian motifs, and ‘stick figures’, as well as its apparent recent age, formed little incentive for in-depth studies of rock art in this region. From sub-Saharan Mali, for example, only two sites have been published to a satisfactory standard (Huysecom 1990; Huysecom et al. 1996). The richness of the region in rock art, as indicated by several authors (e.g. Griaule 1938; Huysecom & Mayor 1991/92; Togola et al. 1995), has been confirmed by on-going research on rock art in the Boucle du Baoulé region (map, FIGURE 5) in the southwest of the country (Kleinitz 2000). In three field seasons, 14 known and 38 newly identified rock-shelters and open-air sites with pictographs and peboglyphs have been recorded.

2021 ◽  
Vol 39 ◽  
pp. 103110
Author(s):  
L. Champion ◽  
N. Gestrich ◽  
K. MacDonald ◽  
L. Nieblas-Ramirez ◽  
D.Q. Fuller

Food Policy ◽  
2019 ◽  
Vol 83 ◽  
pp. 39-47
Author(s):  
Federica Alfani ◽  
Andrew Dabalen ◽  
Peter Fisker ◽  
Vasco Molini

2004 ◽  
Vol 85 (1) ◽  
pp. 61-77 ◽  
Author(s):  
S.M. Haefele ◽  
M.C.S. Wopereis ◽  
A.-M. Schloebohm ◽  
H. Wiechmann

Author(s):  
Guillaume Chagnaud ◽  
Geremy Panthou ◽  
Theo Vischel ◽  
Thierry Lebel

Abstract The West African Sahel has been facing for more than 30 years an increase in extreme rainfalls with strong socio-economic impacts. This situation challenges decision-makers to define adaptation strategies in a rapidly changing climate. The present study proposes (i) a quantitative characterization of the trends in extreme rainfalls at the regional scale, (ii) the translation of the trends into metrics that can be used by hydrological risk managers, (iii) elements for understanding the link between the climatology of extreme and mean rainfall. Based on a regional non-stationary statistical model applied to in-situ daily rainfall data over the period 1983-2015, we show that the region-wide increasing trend in extreme rainfalls is highly significant. The change in extreme value distribution reflects an increase in both the mean and variability, producing a 5%/decade increase in extreme rainfall intensity whatever the return period. The statistical framework provides operational elements for revising the design methods of hydraulic structures which most often assume a stationary climate. Finally, the study shows that the increase in extreme rainfall is more attributable to an increase in the intensity of storms (80%) than to their occurrence (20%), reflecting a major disruption from the decadal variability of the rainfall regime documented in the region since 1950.


Author(s):  
Federica Alfani ◽  
Andrew Dabalen ◽  
Peter Fisker ◽  
Vasco Molini

Sign in / Sign up

Export Citation Format

Share Document