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Accessing Economic and Political Impacts of Hydrological Variability on Treaties : Case Studies on the Zambezi and Mekong Basins

ADVERSE IMPACTS AGRICULTURE ALLOCATION OF WATER ARID AREAS ARID REGIONS BASINS CASE STUDIES CATCHMENT CATCHMENT AREA CATCHMENTS CLASSIFICATION CLIMATE CLIMATE CHANGE CLIMATE VARIABILITY CLIMATIC CONDITIONS COAST COASTS CONFLICT RESOLUTION MECHANISMS CONSTRUCTION DAMS DATA COLLECTION DECISION MAKING DISCHARGE DOWNSTREAM COUNTRIES DROUGHT ECOLOGY ENDANGERED SPECIES ENFORCEMENT MECHANISM ENGINEERING ENVIRONMENTAL CONDITIONS ENVIRONMENTAL IMPACTS ENVIRONMENTS FISHERIES FLOOD CONTROL FLOOD DAMAGE FLOOD EVENTS FLOOD FORECASTING FLOOD FREQUENCY FLOODING FLOODS FLOW REGULATION FRESHWATER FRESHWATER RESOURCES GEOGRAPHIC INFORMATION GEOGRAPHIC INFORMATION SYSTEM HYDROELECTRIC POWER HYDROGRAPHY HYDROLOGIC CYCLE HYDROLOGICAL CYCLE HYDROLOGY IMPOUNDMENTS INTERNATIONAL RIVER BASINS INTERNATIONAL WATER IRRIGATION IRRIGATION WATER LAKES LAND USE MEASUREMENTS METEOROLOGICAL DATA MITIGATION MUNICIPAL WATER NATURAL RESOURCES OPEN ACCESS POPULATION DENSITY POWER GENERATION PRECIPITATION PRECIPITATION DATA PRECIPITATION INTENSITY PRESSURE RAIN RAINFALL RANGES REMOTE SENSING RESERVOIR RESERVOIRS RIPARIAN COUNTRIES RIPARIAN STATES RIVER RIVER BASIN RIVER BASINS RIVER FLOW RIVER SYSTEMS RIVERS RUNOFF SAMPLE SIZE SATELLITE DATA SNOW SNOW MELT SNOWMELT SOIL SOIL MOISTURE STREAM STREAMFLOW SURFACE WATER SUSTAINABLE USE SWAMPS TOPOGRAPHY TRANSBOUNDARY WATERS TREATIES USE OF WATER VALUABLE INFORMATION VEGETATION WATER ALLOCATION WATER ALLOCATION ISSUES WATER AVAILABILITY WATER DEVELOPMENT WATER FLOWS WATER INFRASTRUCTURE WATER MANAGEMENT WATER MANAGEMENT STRATEGIES WATER POLICY WATER POLLUTION WATER PROVIDERS WATER QUALITY WATER QUANTITY WATER REGULATION WATER REQUIREMENTS WATER RESOURCES WATER RESOURCES DEVELOPMENT WATER SCARCITY WATER STORAGE WATER SUPPLY WATER USAGE WATER USE WATER WITHDRAWALS WATERS WATERSHED WATERSHEDS WAVES WETLANDS WILDLIFE
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Africa | Africa | Africa
2012-03-19T17:29:42Z | 2012-03-19T17:29:42Z | 2012-03-01

International river basins will likely face higher hydrologic variability due to climate change. Increased floods and droughts would have economic and political consequences. Riparians of transboundary basins governed by water treaties could experience non-compliance and inter-state tensions if flow falls below levels presumed in a treaty. Flow information is essential to cope with these challenges through water storage, allocation, and use. This paper demonstrates a simple yet robust method, which measures gauge station runoff with wetness values derived from satellite data (1988-2010), for expanding sub-basin stream flow information to the entire river basin where natural flow information is limited. It demonstrates the approach with flow level data that provide estimates of monthly runoff in near real time in two international river basins: Zambezi and Mekong. The paper includes an economic framework incorporating information on existing institutions to assess potential economic and political impacts and to inform policy on conflict and cooperation between riparians. The authors conclude that satellite data modeled with gauge station runoff reduce the uncertainty inherent in negotiating an international water agreement under increased hydrological variability, and thus can assist policy makers to devise more efficient institutional apparatus.

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