Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Flow regime patterns and their controlling factors in the Ebro basin (Spain)
Year:2010
Research Areas
  • Hydrology
Information
Abstract
Natural intra-annual flow fluctuations vary between rivers, being a determining factor for aquatic insects, fish and riparian communities which are adapted to the habitat conditions and different flows throughout the seasons. Moreover, restoration of seasonal flow patterns plays an important role in achieving good ecological status of rivers, through the preservation and/or recovery of components and processes of natural river ecosystems. In this work we: (a) classify fluvial segments in the Ebro basin (North-Eastern Spain) according to the intra-annual variability of flows under natural conditions using statistical cluster analysis of monthly mean flow data; (b) characterise the resulting flow typologies according to several ecologically important hydrological variables; (c) analyse the relationships between flow regimes of fluvial segments and physical variables from their catchments; and finally (d) predict the most probable natural flow regime using logistic models based on the most determinant physical characteristics. Fifteen natural flow typologies were described in the Ebro basin, which were characterised in terms of flow fluctuation through the year as well as timing, flow ratio and duration of the maximum and minimum flows. Precipitation, biogeography and geology of catchments showed the highest correlations with flow regimes. Basin size, mean elevation and slope were also correlated. The logistic model we developed had a prediction success of 72% in the Ebro basin. The definition of the natural hydrological conditions (to which the biological communities are tailored), even when flow data are not available, is an important support in the management of river ecosystems. It is especially suitable for setting goals in aquatic ecosystem conservation or restoration projects.
International
Si
JCR
Si
Title
JOURNAL OF HYDROMETEOROLOGY
ISBN
1525-755X
Impact factor JCR
2,739
Impact info
Volume
10.1016/j.jhydrol.2010.03.001
Journal number
385
From page
323
To page
335
Month
ENERO
Ranking
Participants
  • Autor: Maria Dolores Bejarano Carrion (UPM)
  • Autor: Miguel Marchamalo Sacristan (UPM)
  • Autor: Marta Gonzalez del Tanago Del Rio (UPM)
  • Autor: Diego M Garcia de Jalon Lastra (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Hidrobiología
  • Departamento: Ingeniería y Morfología del Terreno
S2i 2019 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)