• Home
  • UCSC journals portal
  • ANID repository
  • UCSC Thesis Repository
  • English
  • Español
  • Log In
    Have you forgotten your password?
  1. Home
  2. Productividad Científica
  3. Publicaciones Científicas
  4. Hydrographic shifts in coastal waters reflect climate-driven changes in hydrological regimes across Northwestern Patagonia
 
Options
Hydrographic shifts in coastal waters reflect climate-driven changes in hydrological regimes across Northwestern Patagonia
Dr. León-Muñoz, Jorge 
Facultad de Ciencias 
Aguayo, Rodrigo
Corredor-Acosta, Andrea
Tapia, Fabián
Iriarte, José
Reid, Brian
Soto, Doris
10.1038/s41598-024-71008-y
Springer Nature Limited
2024
Climate-driven changes in freshwater inputs have been shown to afect the structure and function of coastal ecosystems. We evaluated changes in the infuence of river runof on coastal systems of Northwestern Patagonia (NWP) over recent decades (1993–2021) by combined analysis of long-term streamfow time series, hydrological simulation, satellite-derived and reanalysis data on sea surface conditions (temperature, turbidity, and salinity). Signifcant decreases in minimum streamfow across a zone spanning six major river basins were evident at weekly, monthly, and seasonal scales. These changes have been most pronounced in mixed-regime northern basins (e.g., Puelo River) but appear to be progressing southward to rivers characterised by a nival regime. In the adjacent two-layer inner sea, reduced freshwater input corresponds with a shallower halocline and increased surface temperatures across northern Patagonia. Our results underscore the rapidly evolving infuence of rivers on adjacent estuarine and coastal waters in NWP. We highlight the need for cross-ecosystem observation, forecasting, mitigation and adaptation strategies in a changing climate, together with corresponding adaptive basin management of systems that supply runof to the coastal marine waters.
Thumbnail Image
Download
Name

Hydrographic shifts in coastal waters reflect climate-driven changes in hydrological regimes across Northwestern Patagonia.pdf

Size

2.84 MB

Format

Checksum
Hydrological trends
Climate change
Freshwater input
Estuarine stratifcation
Patagonia
Historial de mejoras
Proyecto financiado por: