Unraveling the hydrological budget of isolated and seasonally contrasted subtropical lakes

Complete understanding of the hydrological functioning of large-scale intertropical watersheds such as the Lake Chad basin is becoming a high priority in the context of climate change in the near future and increasing demographic pressure. This requires integrated studies of all surface water and gr...

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Bibliographic Details
Published in:Hydrology and earth system sciences 2019-03, Vol.23 (3), p.1705-1724
Main Authors: Poulin, Chloe, Hamelin, Bruno, Vallet-Coulomb, Christine, Amngar, Guinbe, Loukman, Bichara, Cretaux, Jean-Francois, Doumnang, Jean-Claude, Mahamat Nour, Abdallah, Menot, Guillemette, Sylvestre, Florence, Deschamps, Pierre
Format: Article
Language:English
Subjects:
Access roads
Altimetry
Analysis
Aquifer systems
Aquifers
Basins
Benchmarking
Budgets
Catchment area
Catchment basins
Chemical composition
Climate change
Composition
Computer simulation
Data
Demographics
Dry season
Earth Sciences
Economic policy
Endorheic basins
Environmental aspects
Environmental monitoring
Evaporation
Fluxes
Geochemistry
Global temperature changes
Groundwater
Hydrologic data
Hydrology
Infiltration
Infiltration (Hydrology)
Isotope composition
Lake basins
Lakes
Mass balance
Mathematical models
Meteorological observations
Organic chemistry
Precipitation
Precipitation (Meteorology)
Rain
Rainfall
Rainy season
Ratios
Satellites
Sciences of the Universe
Seasonal variation
Seasonal variations
Seasons
Surface water
Surface-groundwater relations
Transpiration
Water
Water balance
Water balance (Hydrology)
Water budget
Water resources
Watersheds
Weather
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Summary:Complete understanding of the hydrological functioning of large-scale intertropical watersheds such as the Lake Chad basin is becoming a high priority in the context of climate change in the near future and increasing demographic pressure. This requires integrated studies of all surface water and groundwater bodies and of their quite-complex interconnections. We present here a simple method for estimating the annual mean water balance of sub-Sahelian lakes subject to high seasonal contrast and located in isolated regions with no road access during the rainy season, a situation which precludes continuous monitoring of in situ hydrological data.
ISSN:1607-7938
1027-5606
1607-7938
DOI:10.5194/hess-23-1705-2019