scholarly journals Evaluating global reanalysis precipitation datasets with rain gauge measurements in the Sudano-Sahel region: case study of the Logone catchment, Lake Chad Basin

2016 ◽  
Vol 24 (1) ◽  
pp. 9-18 ◽  
Author(s):  
E. Nkiaka ◽  
N. R. Nawaz ◽  
J. C. Lovett
Keyword(s):  
Rain Gauge ◽  
Lake Chad ◽  
Chad Basin ◽  
Lake Chad Basin ◽  
Logone Catchment ◽  
Sahel Region ◽  
Global Reanalysis

scholarly journals Biomass Burning and Water Balance Dynamics in the Lake Chad Basin in Africa

Earth ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 340-356
Author(s):  
Forrest W. Black ◽  
Jejung Lee ◽  
Charles M. Ichoku ◽  
Luke Ellison ◽  
Charles K. Gatebe ◽  
...  
Keyword(s):  
Water Balance ◽  
Biomass Burning ◽  
Water Cycle ◽  
Potential Evapotranspiration ◽  
Southern Oscillation ◽  
Wet Season ◽  
Lake Chad ◽  
Chad Basin ◽  
Lake Chad Basin ◽  
Logone Catchment

The present study investigated the effect of biomass burning on the water cycle using a case study of the Chari–Logone Catchment of the Lake Chad Basin (LCB). The Chari–Logone catchment was selected because it supplies over 90% of the water input to the lake, which is the largest basin in central Africa. Two water balance simulations, one considering burning and one without, were compared from the years 2003 to 2011. For a more comprehensive assessment of the effects of burning, albedo change, which has been shown to have a significant impact on a number of environmental factors, was used as a model input for calculating potential evapotranspiration (ET). Analysis of the burning scenario showed that burning grassland, which comprises almost 75% of the total Chari–Logone land cover, causes increased ET and runoff during the dry season (November–March). Recent studies have demonstrated that there is an increasing trend in the LCB of converting shrubland, grassland, and wetlands to cropland. This change from grassland to cropland has the potential to decrease the amount of water available to water bodies during the winter. All vegetative classes in a burning scenario showed a decrease in ET during the wet season. Although a decrease in annual precipitation in global circulation processes such as the El Niño Southern Oscillation would cause droughts and induce wildfires in the Sahel, the present study shows that a decrease in ET by the human-induced burning would cause a severe decrease in precipitation as well.

scholarly journals Desiccation of Lake Chad as a cause of security instability in the Sahel region

GeoScape ◽  
2017 ◽  
Vol 11 (2) ◽  
pp. 112-120 ◽  
Author(s):  
Kateřina Rudincová
Keyword(s):  
Environmental Changes ◽  
Political Conflict ◽  
Boko Haram ◽  
Lake Chad ◽  
Environmental Threats ◽  
Chad Basin ◽  
Ecological Changes ◽  
Lake Chad Basin ◽  
Terrorist Groups ◽  
Sahel Region

AbstractThe Lake Chad basin is one of the most unstable regions in Africa. The lake itself has shrunk and nowadays it covers less than 10 % of its area in 1960. These environmental changes have wider geopolitical consequences in the whole region, which encompasses countries such as Nigeria, Niger, Chad and Cameroon. Therefore, it seems that environmental threats may act as the detonators for larger political conflict as well as for a struggle for land and may cause growing instability in affected countries. The region is fragile, owing to the fact that several terrorist and Islamist groups are operating there. The most serious threat in the Lake Chad basin is militant Islamist group Boko Haram, which is based in north eastern Nigeria, but it is also active in neighbouring countries. As a result of both ecological changes and security threats, people are losing their traditional sources of income from herding and it is likely that there will be large waves of migration from the area. The paper focuses on the environmental challenges in the Lake Chad basin and their effect on the security in the region. The main attention will be paid to the strategies and actions of militant terrorist groups such as Boko Haram that will be analysed in the wider regional geopolitical context.

Application of GRACE to the estimation of groundwater storage change in a data‐poor region: A case study of Ngadda catchment in the Lake Chad Basin

2020 ◽  
Vol 34 (4) ◽  
pp. 941-955 ◽  
Author(s):  
Alla Skaskevych ◽  
Jejung Lee ◽  
Hahn Chul Jung ◽  
John Bolten ◽  
John L. David ◽  
...  
Keyword(s):  
Groundwater Storage ◽  
Lake Chad ◽  
Chad Basin ◽  
Lake Chad Basin ◽  
Poor Region ◽  
Storage Change

scholarly journals Analysis of rainfall variability in the Logone catchment, Lake Chad basin

2016 ◽  
Vol 37 (9) ◽  
pp. 3553-3564 ◽  
Author(s):  
E. Nkiaka ◽  
N. R. Nawaz ◽  
J. C. Lovett
Keyword(s):  
Rainfall Variability ◽  
Lake Chad ◽  
Chad Basin ◽  
Lake Chad Basin ◽  
Logone Catchment
Sign in / Sign up

Export Citation Format

Share Document