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

West Bangal

South Asia: Water deficits persist in central India but surplus forecast after April

South Asia: Water deficits persist in central India but surplus forecast after April

Intense water deficits will persist in central India through April, after which a transition to surplus is forecast stretching coast to coast across the country’s middle. Until the transition, deficits will be extreme in Madhya Pradesh, western Chhattisgarh, western Karnataka, and eastern Andhra Pradesh, and moderate deficits will emerge in Odisha, Telangana, and southern Tamil Nadu. Intense surplus will persist in Bangladesh, nearby Indian states, and Nepal. Deficits in Afghanistan will downgrade but persist, as will deficits in northern Sri Lanka.

South Asia: Moderate water surpluses forecast for India's midsection, deficits in the south

South Asia: Moderate water surpluses forecast for India's midsection, deficits in the south

Moderate water surpluses are forecast in India in an area fanning out from Gujarat. Deficits are expected in much of India’s southern half from Maharashtra south, and in central Odisha, north of Delhi, and the Thar Desert. Surpluses are forecast in eastern Afghanistan, Jammu and Kashmir, Sri Lanka, and Bangladesh. Deficits are expected to persist in western Afghanistan and southwestern Pakistan. Deficits are forecast to begin emerging in Bhutan and northeastern India states in July and increase 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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