Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Drought, characterized by below-average water supply, profoundly affects regional water resources and various ecosystem services. The Palmer Drought Severity Index (PDSI) is a widely used metric for drought monitoring and climate change assessments but suffers from inherent climatic inconsistencies and lacks comprehensive and reliable estimates under changing climate conditions. Here we develop a monthly multi-model and multi-scenario dataset of self-calibrated PDSI for the period 1850-2094, derived from 11 climate model outputs within the Coupled Model Intercomparison Project 6 (PDSI_CMIP6). The traditional two-layer bucket model in PDSI is replaced with direct hydrological outputs from CMIP6 models, ensuring alignment with CMIP6 projections. The PDSI estimates are validated against soil moisture simulations through correlation and regression analysis. Application of the dataset reveals pronounced spatial heterogeneity in long-term drought trends across continents, with limited global-mean change but notable regional intensification under climate change. This dataset provides uncertainty-constrained quantifications of terrestrial moisture conditions in a changing climate, faithfully reflecting CMIP6-projected hydrological changes.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12357914 | PMC |
| http://dx.doi.org/10.1038/s41597-025-05790-3 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Extreme weather events and dengue in Southeast Asia: A regionally-representative analysis of 291 locations from 1998 to 2021.
PLoS Negl Trop Dis
September 2025
Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Background: Climate change, leading to more frequent and intense extreme weather events (EWEs), could significantly impact dengue transmission. However, the associations between EWEs and dengue remains underexplored in the Southeast Asia (SEA) region. We investigated the association between selected EWEs (i.
View Article and Find Full Text PDFDifferences in Growth Responses to Climate of Three Conifer Species in Lugu Lake of Northwestern Yunnan, Southwestern China.
Plants (Basel)
August 2025
College of Ecology and Environment (College of Wetlands), Southwest Forestry University, Kunming 650224, China.
Responses of tree radial growth to climate are usually species-specific. Northwestern Yunnan has become a hotspot for the study of dendrochronology due to its sensitivity to climate change and the relative integrity of vegetation preservation. In this paper, we take three dominant conifers-, and -as the research objects and analyze their tree-ring width chronologies in order to reveal the main climate factors affecting tree growth in northwestern Yunnan and to evaluate species-specific variation in climate response.
View Article and Find Full Text PDFPDSI_CMIP6: an ensemble CMIP6-projected self-calibrated Palmer drought severity index dataset.
Sci Data
August 2025
State Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua University, Beijing, China.
Drought, characterized by below-average water supply, profoundly affects regional water resources and various ecosystem services. The Palmer Drought Severity Index (PDSI) is a widely used metric for drought monitoring and climate change assessments but suffers from inherent climatic inconsistencies and lacks comprehensive and reliable estimates under changing climate conditions. Here we develop a monthly multi-model and multi-scenario dataset of self-calibrated PDSI for the period 1850-2094, derived from 11 climate model outputs within the Coupled Model Intercomparison Project 6 (PDSI_CMIP6).
View Article and Find Full Text PDFHigh-resolution spatiotemporal analysis of drought dynamics in Iran.
Environ Monit Assess
August 2025
Department of Physical Geography, Tarbiat Modares University, Tehran, Iran.
High-resolution data can help us better understand the patterns and temporal variations related to drought. This research examines drought trends in Iran utilizing the self-calibrated Palmer drought severity index (scPDSI) and high-resolution TerraClimate data (4 km resolution) from 1958 to 2022. Based on the scPDSI index, a total of 558 drought occurrences were identified.
View Article and Find Full Text PDFEcological stoichiometry of carbon, nitrogen, phosphorus, and silicon in coastal salt marsh plants and its implications for carbon sink management.
J Environ Manage
September 2025
School of Environmental and Chemical Engineering, Foshan University, Guangdong, 528000, China; Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A & F University, Zhejiang, 311300, China.
Carbon (C), nitrogen (N), and phosphorus (P) are essential elements for plants, while silicon (Si) is a beneficial element. Plants play a crucial role in sustainable C sequestration in coastal salt marshes. This study investigated the patterns, driving factors, and effects on ecosystem productivity of C, N, P, and Si contents and ratios in stems, leaves, and sheaths of coastal salt marsh plants of China, including Phragmites australis, Spartina alterniflora, and Suaeda glauca.
View Article and Find Full Text PDF