Africa
ISciences staff
Africa: Surpluses continue along the Sahel

Exceptional deficits throughout Africa will persist in northwestern, northern, and central countries. Surpluses will remain along the Sahel.

Africa: Surpluses continue along the Sahel
South America
ISciences staff
South America: Amazon, Bolivarian Nations to ...

Exceptional deficits will remain throughout the Amazon and the Boliviarian Nations. Similar deficits will occur in northeastern coastal regions of Brazil, in Argentina, and in Chile. 

South America: Amazon, Bolivarian Nations to observe continued deficits
*Water Watch Lists
ISciences staff
ISciences Worldwide Water Watch List November ...

The forecast for November 2024 expects significant water deficits for the 12-month period of August 2024 through July 2025 in northern South America, Canada, northwestern and eastern China, and northern to central Africa. Areas expected to experience surplus include central Africa, South Asia, and Central America.

ISciences Worldwide Water Watch List November 2024
*Special Topics, South America
ISciences staff
Escalating Drought Risk in the Amazon River ...

With the release of WSIM v3 and 8 years of additional data, we reevaluate drought risk in the Amazon and the historic drought that continue to affect the region.

Escalating Drought Risk in the Amazon River Basin
Australia & New Zealand
ISciences staff
Australia & New Zealand: Surpluses ...

The forecast indicates that extreme to exceptional surpluses in northern Australia will diminish, though will still remain present in some regions of Northern Territory. Exceptional deficits across the continent will similarly dissipate, though severe deficits are expected along the southern coast of Victoria. 

Australia & New Zealand: Surpluses continues in north-central Australia

Son River

South Asia: Water deficits continue to emerge in India, surpluses in NE Afghanistan

South Asia: Water deficits continue to emerge in India, surpluses in NE Afghanistan

Though the extent of exceptional deficits in southern India is forecast to diminish February through April, deficits will emerge across the country’s mid-section in places which, in the prior three months, had seen normal or surplus water conditions. Exceptional deficits are forecast for Gujarat and northeast India; and in Karachi, Pakistan. Surpluses are forecast along major rivers in northeastern Pakistan, throughout Afghanistan, and in eastern Nepal. From May through July deficits in India will diminish considerably in severity except in Assam and Arunachal Pradesh. Surpluses will continue to emerge in Afghanistan and may be exceptional in the Upper Helmand Basin.

South Asia: Exceptional water deficits in Gujarat and southern India

South Asia: Exceptional water deficits in Gujarat and southern India

Exceptional water deficits will persist in southern India through February and will emerge in Gujarat and persist through May. Surpluses in the Chambal and Ganges Basins will transition to both deficits and surpluses through February, after which surpluses are forecast in West Bengal, Jharkhand, and Bihar. Surpluses are forecast in western Myanmar through February, and in Nepal and Bangladesh through May. Moderate deficits are expected in southern Pakistan through February.

Many analyses reported in ISciences-authored blog posts are based on data generated by the ISciences Water Security Indicator Model (WSIM). Other sources, if used, are referenced in footnotes accompanying individual posts. WSIM is a validated capability that produces monthly reports on current and forecast global freshwater surpluses and deficits with lead times of 1-9 months at 0.25°x0.25° resolution. This capability has been in continuous operation since April 2011 and has proven to provide reliable forecasts of emerging water security concerns in that time-frame. WSIM has the ability to assess the impacts of water anomalies on people, agriculture, and electricity generation. Detailed data, customized visualizations, and reports are available for purchase.

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