Building a framework for a synoptic overview of drought DOI Creative Commons
Arianna Di Paola, Edmondo Di Giuseppe, Ramona Magno

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 958, P. 177949 - 177949

Published: Dec. 15, 2024

Drought is a complex phenomenon with multifactorial impacts, requiring multiscale approach for effective understanding and management. This study presents an innovative operational framework, "Drought Scan," designed to deepen drought understanding, improve monitoring, streamline climate services support adaptation mitigation against impacts. At the core of framework methodology that integrates two standardized indices: precipitation streamflow indices (SPI SQI, respectively). These are calculated over 1 36 (1:36) month-scales synthesized into single Standardized Integrated Index (

Language: Английский

A long-term drought reconstruction based on oxygen isotope tree ring data for central and eastern parts of Europe (Romania) DOI Creative Commons
Viorica Nagavciuc, Gerhard Helle,

Mariá Rãdoane

et al.

Biogeosciences, Journal Year: 2025, Volume and Issue: 22(1), P. 55 - 69

Published: Jan. 7, 2025

Abstract. This study investigates the relationship between oxygen isotope ratios (δ18O) in oak tree ring cellulose and past drought variability Letea Forest, Romania. A δ18O site chronology spanning 1803–2020 was compiled from seven individual time series. values exhibited a significant negative correlation with moisture-related variables (cloud cover, relative humidity, precipitation) positive temperature sunshine duration. confirms that rings can be good proxy for moisture availability. The strongest found August Standardized Precipitation Evapotranspiration Index an accumulation period of 9 months (SPEI9) central eastern Europe. highlights SPEI9 as superior indicator compared to parameters like or precipitation. Using linear regression model, we reconstructed 200 years. reconstruction captured interannual decadal variations, distinct wet dry periods. Analysis large-scale atmospheric circulation patterns revealed link high (indicating conditions) high-pressure system over North Atlantic. Conversely, low corresponded pressure anomalies Moreover, extreme are also associated prevalence hemispheric teleconnection pattern, namely wave number 4. corresponding offer valuable tools understanding climate its oceanic patterns.

Language: Английский

Citations

0
Floods after drought: storytelling with agro-pastoralists in a Kenyan dryland DOI Creative Commons

Ruben V. Weesie,

Melanie Rohse, Anne F. Van Loon

et al.

Frontiers in Water, Journal Year: 2025, Volume and Issue: 7

Published: Jan. 15, 2025

In East African drylands, agro-pastoralists are continuously dealing with recurrent droughts and floods damaging to their livelihoods. Although have been widely studied as separate phenomena, little attention has paid agro-pastoral experiences of the relations between successive over time. Yet when follow a drought, they likely exacerbate or alleviate impacts preceding drought. To address this, we conducted study in southeastern Kenya’s organizing storytelling sessions 213 agro-pastoralist participants. By reconstructing history from 1940s early 2020s, found that strongly interrelated ambivalent phenomena. During latter half 20th century, narrated severely disruptive, distinct periods frequently concluded flooding, which both alleviated intensified drought impacts. 21st however, no longer experienced discrete, named events but rather new normal. Floods after become more frequent, short-lived, intense, erosive, regenerative function diminishing. The participants articulated how adapt amidst rapid socio-economic socio-environmental changes. We various adaptation measures, largely initiated by (non)governmental organizations operating introduced flood risks. As expected even heavier frequent future drylands beyond, stories underscore need for approaches benefit potential

Language: Английский

Citations

0
Ownership in times of water scarcity: are inhabitants supplied by private utilities consuming more water? DOI Creative Commons
Cláudia Orsini Machado de Sousa, Luíz Paulo Lopes Fávero, Nuno Manoel Martins Dias Fouto

et al.

AQUA - Water Infrastructure Ecosystems and Society, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 18, 2025

ABSTRACT The growing public focus on water resource issues highlights the effectiveness of demand-side management in reducing consumption, a strategy adopted worldwide. In Brazil, where scarcity remains concern, 2020 regulatory framework accelerated utilities' privatization. This study examines how expanded role private companies and sanitation sector influences residential consumption behaviors. Using three-level hierarchical linear model, we analyzed per capita data from 858 Brazilian municipalities between 2002 2019. Results show that, average, residents served by consume less than those providers. While rising tariffs privatization may partially explain these outcomes, literature offers mixed support for this claim. Nonetheless, findings emphasize importance state-owned providers, which serve most Brazilians, revisiting their demand strategies. Key actions could include informational campaigns economic incentives to promote voluntary water-saving

Language: Английский

Citations

0
Drought research priorities, trends, and geographic patterns DOI Creative Commons
Roland Baatz, Gohar Ghazaryan, Michael Hagenlocher

et al.

Hydrology and earth system sciences, Journal Year: 2025, Volume and Issue: 29(5), P. 1379 - 1393

Published: March 13, 2025

Abstract. Drought research addresses one of the major natural hazards that threatens progress toward Sustainable Development Goals. This study aims to map evolution and interdisciplinarity drought over time across regions, offering insights for decision-makers, researchers, funding agencies. By analysing more than 130 000 peer-reviewed articles indexed in SCOPUS from 1901 2022 using latent Dirichlet allocation (LDA) topic modelling, we identified distinct shifts priorities emerging trends. The results reveal plant genetic drought-tolerant genotypes advancements forecasting are most dominant continuously growing areas focus. In contrast, relative importance topics such as ecology, water resource management, forest has decreased. Geospatial patterns highlight a universal focus on methods, with strong secondary emphasis policy societal issues Africa Oceania. Interdisciplinarity experienced marked decline until 1983, followed by steady increase 2007 onward, suggesting integration diverse fields. Emerging recent years signal evolving future research. analysis provides comprehensive overview trends sectors strategic guidance aligning efforts resilience goals. findings crucial agencies policymakers aiming prioritize highest potential mitigate impacts effectively.

Language: Английский

Citations

0
Vegetation browning as an indicator of drought impact and ecosystem resilience DOI Creative Commons
Ignacio Fuentes, Javier Lopatin, Mauricio Galleguillos

et al.

Science of Remote Sensing, Journal Year: 2025, Volume and Issue: unknown, P. 100219 - 100219

Published: March 1, 2025

Language: Английский

Citations

0
Disentangling the socio-natural dynamics of drought and water scarcity in Colombia's Tropical Andes DOI Creative Commons
Carlos L. Pérez, Sara Alonso Vicario, Nora Van Cauwenbergh

et al.

Journal of Hydrology Regional Studies, Journal Year: 2024, Volume and Issue: 56, P. 102068 - 102068

Published: Nov. 25, 2024

Language: Английский

Citations

1
Building a framework for a synoptic overview of drought DOI Creative Commons
Arianna Di Paola, Edmondo Di Giuseppe, Ramona Magno

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 958, P. 177949 - 177949

Published: Dec. 15, 2024

Drought is a complex phenomenon with multifactorial impacts, requiring multiscale approach for effective understanding and management. This study presents an innovative operational framework, "Drought Scan," designed to deepen drought understanding, improve monitoring, streamline climate services support adaptation mitigation against impacts. At the core of framework methodology that integrates two standardized indices: precipitation streamflow indices (SPI SQI, respectively). These are calculated over 1 36 (1:36) month-scales synthesized into single Standardized Integrated Index (

Language: Английский

Citations

1