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 Plateau

Australia & New Zealand: Severe deficits forecast in Tasmania

Australia & New Zealand: Severe deficits forecast in Tasmania

The May through July forecast indicates that Australia will transition away from widespread and intense water deficits observed February through April. However, severe to exceptional deficits are forecast for southwestern Western Australia, the Darwin Region of Northern Territory, Tasmania, New South Wales, Victoria, much of the Cape York Peninsula in northern Queensland, and New Caledonia. Surpluses are expected to persist in northeastern Queensland, and a large block of surpluses in eastern Kimberly, Western Australia will transition to both deficits and surpluses. After July deficits will continue to retreat in Australia, except in Tasmania, leaving much of the country in near-normal conditions.

Australia & New Zealand: Exceptional water deficits to emerge in Tasmania

Australia & New Zealand: Exceptional water deficits to emerge in Tasmania

The April through June outlook indicates significant improvement as widespread and exceptional water anomalies are no longer evident in the forecast for South Australia, Queensland, and New South Wales. However, severe to exceptional deficits are expected to emerge throughout Tasmania and in Western Australia. Moderate deficits are forecast for central Australia, New Caledonia, and southern South Island, New Zealand. Surpluses will continue to emerge in eastern Queensland, and surpluses in the Kimberley Plateau in the northwest will diminish. After June primarily abnormal deficits will prevail over most of the country, with more severe deficits in eastern Tasmania, Western Australia, and in the north near Darwin.

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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