Page 37: Research news on droughts

Droughts, as a research topic, encompass the characterization, drivers, impacts, and prediction of prolonged periods of abnormally low water availability in the atmosphere, soil, and hydrological systems. Scientific study distinguishes meteorological, agricultural, hydrological, and socio-economic droughts, often quantified using indices such as the Standardized Precipitation Index or Palmer Drought Severity Index. Research investigates land–atmosphere feedbacks, large-scale circulation anomalies, soil moisture deficits, vegetation stress, and groundwater depletion, as well as the modulation of drought frequency, duration, and intensity by climate variability and anthropogenic climate change, with implications for water resources management, ecosystem functioning, and risk assessment.

Getting to the root of tree survival

Two consecutive dry years in South Australia have put extreme stress on urban trees and shrubs, with Flinders University experts examining degrees of dieback in Adelaide trees affected by the dry conditions.

NASA data, trainings help Uruguay navigate drought

NASA satellite data and trainings helped Uruguay create a drought-response tool that its National Water Authority now uses to monitor reservoirs and guide emergency decisions. A similar approach could be applied in the United ...

Climate change is making rollercoaster harvests the new normal

A new global study led by the University of British Columbia shows that hotter and drier conditions are making food production more volatile, with crop yields swinging more sharply from year to year. For some, it may mean ...

How drought and ozone pollution team up to reduce soybean yield

In a new study, crop scientists at the University of Illinois Urbana-Champaign and USDA's Agricultural Research Service show that soybeans are doubly damaged by drought and ozone pollution, both of which are increasing across ...

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