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

Kimberley region

Australia & New Zealand: Water deficits to downgrade but persist in Tasmania

Australia & New Zealand: Water deficits to downgrade but persist in Tasmania

Exceptional water deficits that have dominated southern Australia are expected to disappear, but deficits are forecast for northern Australia, the southwest, the southeast, and Tasmania. These deficits may be intense in Tasmania and in pockets of other aforementioned areas. Moderate deficits are expected along the Darling, Lachlan, and Macquarie Rivers in New South Wales. Surpluses will shrink but persist in the Mackenzie River region of Queensland and in southwest Kimberley region of Western Australia.

Australia & New Zealand: Deficits persist in Tasmania & Channel Country

Australia & New Zealand: Deficits persist in Tasmania & Channel Country

A transition away from significant water deficit is forecast for mainland Australia. Exceptional deficits will shrink considerably, retreating to Channel Country in central Australia. However, intense deficits are forecast for western Tasmania, coastal Victoria, Darwin, and the southeastern tip of Western Australia. Moderate deficits are forecast for the remainder of New South Wales, much of South Australia, Northern Territory, and much of the northern half of Western Australia. Moderate deficits are forecast for North Island New Zealand, and New Caledonia.

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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