Hydrological Impacts of Drought in Northeast Brazil
Summary
The semiarid region of Northeast Brazil is characterised by high rainfall variability and a pronounced dry season, making it particularly susceptible to recurrent and prolonged droughts. Hydrological impacts manifest as reduced river flows, diminished reservoir storage and depleted aquifers, with cascading effects on agriculture, energy generation, water supply and ecosystems. Seasonal rainfall deficits are often linked to anomalies in sea surface temperatures in the tropical Atlantic and Pacific, with El Niño events exacerbating drought severity. Over recent decades, trends towards longer and more intense dry spells have been detected, stressing existing water infrastructure and emphasising the need for adaptive management. Socioeconomic repercussions include strain on rain-fed agriculture, rural livelihoods and urban water provision, underlining the global significance of understanding drought processes in semiarid environments and informing sustainable water resources planning worldwide.
Research from Nature Portfolio
No recent Nature Portfolio content available.
Hydrological Impacts of Drought in Northeast Brazil publication trend
The graph below shows the total number of articles in hydrological impacts of drought in northeast brazil across all publications each year (not limited to Nature Index journals).
Technical terms
Hydrological drought: A reduction in water availability in rivers, reservoirs and aquifers relative to long-term normal conditions.
Standardized Precipitation Index: A statistical indicator that quantifies precipitation deficits over specified timescales to assess drought onset and severity.
Quantile Delta Mapping: A bias-correction method that adjusts the distribution of climate model outputs by matching quantiles to observed data.
Water-stress indicator: A composite measure combining variables such as soil moisture, precipitation anomalies and river discharge to evaluate drought impacts on water resources.
References
- CLIMBra - Climate Change Dataset for Brazil. Scientific Data (2023).
- Drought monitoring in the Brazilian Semiarid region. Anais da Academia Brasileira de Ciências (2019).
- Drought in Northeast Brazil: A review of agricultural and policy adaptation options for food security. Climate Resilience and Sustainability (2021).
Turn complex research questions into confident strategic decisions
When you're under pressure to set direction, justify investment, or understand your competitive position, you need more than raw data — you need trusted insights you can act on.
Benchmark your performance against global peers using robust, methodologically sound analysis.
Combine quantitative metrics with qualitative expert insight to uncover strengths, gaps and emerging opportunities.
Gain tailored, decision-ready recommendations aligned to your strategic priorities.
Talk to us to learn more about our data dashboards and bespoke strategy reports.
Grow research skills, confidence and careers with training built for every stage of the research lifecycle.
Developed with Nature Portfolio journal Editors and internationally renowned experts. Discover three ways to learn:
Self-paced, online courses in convenient bite-sized units, covering key skills across scientific writing, publishing, grant writing, data analysis, and more.
Expert trainer-led workshops with hands-on exercises and real-time feedback across core research skills, delivered via interactive group sessions.
Editor-led workshops combining core principles in writing and publishing, personalised 1:1 feedback from Nature Portfolio Editors and hands-on exercises.
Explore course catalogues and workshop agendas, enquire about the options or request institutional pricing.