Next Article in Journal
Groundwater Origins and Circulation Patterns Based on Isotopes in Challapampa Aquifer, Bolivia
Next Article in Special Issue
Water Resource Variability and Climate Change
Previous Article in Journal
Hydro-Meteorological Drought Projections into the 21-st Century for Selected Polish Catchments
Previous Article in Special Issue
Multi-Basin Modelling of Future Hydrological Fluxes in the Indian Subcontinent
Open AccessArticle

Hydrological Evaluation of Lake Chad Basin Using Space Borne and Hydrological Model Observations

Department of Civil and Environmental Engineering, Dongguk University, Seoul 04620, Korea
*
Author to whom correspondence should be addressed.
Academic Editors: Yingkui Li and Michael A. Urban
Water 2016, 8(5), 205; https://doi.org/10.3390/w8050205
Received: 17 February 2016 / Revised: 2 May 2016 / Accepted: 9 May 2016 / Published: 17 May 2016
(This article belongs to the Special Issue Water Resource Variability and Climate Change)
Sustainable water resource management requires the assessment of hydrological changes in response to climate fluctuations and anthropogenic activities in any given area. A quantitative estimation of water balance entities is important to understand the variations within a basin. Water resources in remote areas with little infrastructure and technological knowhow suffer from poor documentation, rendering water management difficult and unreliable. This study analyzes the changes in the hydrological behavior of the Lake Chad basin with extreme climatic and environmental conditions that hinder the collection of field observations. Total water storage (TWS) from the Gravity Recovery and Climate Experiment (GRACE), lake level variations from satellite altimetry, and water fluxes and soil moisture from Global Land Data Assimilation System (GLDAS) were used to study the spatiotemporal variability of the hydrological parameters of the Lake Chad basin. The estimated TWS varies in a similar pattern as the lake water level. TWS in the basin area is governed by the lake’s surface water. The subsurface water volume changes were derived by combining the altimetric lake volume with the TWS over the drainage basin. The results were compared with groundwater outputs from WaterGAP Global Hydrology Model (WGHM), with both showing a somewhat similar pattern. These results could provide an insight to the availability of water resources in the Lake Chad basin for current and future management purposes. View Full-Text
Keywords: GRACE; Lake Chad basin; GLDAS; WGHM; groundwater; altimetry; hydrological changes GRACE; Lake Chad basin; GLDAS; WGHM; groundwater; altimetry; hydrological changes
Show Figures

Figure 1

MDPI and ACS Style

Buma, W.G.; Lee, S.-I.; Seo, J.Y. Hydrological Evaluation of Lake Chad Basin Using Space Borne and Hydrological Model Observations. Water 2016, 8, 205.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map

1
Back to TopTop