Temporal hydrological drought clustering varies with climate and land-surface processes
Bibliographic Data
| ID | 15544836 |
|---|---|
| Authors | Manuela I Brunner (0000-0001-8824-877X, University of Freiburg, corresponding author), Kerstin Stahl (0000-0002-2159-9441, University of Freiburg) |
| Year | 2023 |
| Volume | 18 |
| Issue | 3 |
| Pages | 034011-034011 |
| Publication date | 2023-02-03 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Environmental Research Letters (JOURNAL) |
| Journal identifiers | ISSN: 1748-9326 • E-ISSN: 1748-9326 |
| Publisher | IOP Publishing (PUBLISHER • GB) |
| DOI | 10.1088/1748-9326/acb8ca |
| OpenAlex | W4319067575 |
| Language | EN |
| Citations received | 2 |
| References cited | 80 |
Recurrent hydrological droughts (streamflow deficits) are highly impactful and challenge water management. Regional studies have provided some evidence of drought-rich periods at specific time scales. However, it is yet unclear where and when droughts cluster in time. Here, we test for significant temporal hydrological drought clustering at subseasonal to multi-year time scales in different climate zones around the world using two different clustering metrics, i.e. the dispersion index and Ripley’s K . We find that (1) only 10% of the catchments show temporal hydrological drought clustering, (2) hydrological droughts cluster from seasonal to 3-year time scales with clustering being strongest at an annual time scale; (3) arid catchments with a low snow fraction are most prone to temporal drought clustering; and (4) temporal clustering is more pronounced for hydrological than for meteorological droughts. These results suggest that besides climatic drivers, land-surface processes importantly influence the temporal clustering behavior of hydrological droughts
Arid · Cartography · Climate change · Climatology · Cluster analysis · Drainage basin · Geography · Hydrology (agriculture · Streamflow · Temporal scales · Computer Science · Environmental Science · Flood Risk Assessment and Management · Hydrology and Drought Analysis · Hydrology and Watershed Management Studies · Ecology · Geology
| Unique citing works | 2 |
|---|---|
| Citations per year | 1 |
| Citation span | 2024 - 2026 (3) |
| Citation velocity | current |
| Highly cited | No |
| Citation types | Neutral: 2 |