Skip to main content

Fluvial systems. Annual contribution

Fluvial systems. Internal basins. Annual contribution Catalonia Length (km)
Muga Fluvià Ter Ridaura Tordera Besòs Congost Llobregat Cardener Anoia Foix Gaià Francolí Siurana
2022 65 97 208 22 54 58 41 170 90 80 49 66 85 59
2021 65 97 208 22 54 58 41 170 90 80 49 66 85 59
2020 65 97 208 22 54 58 41 170 90 80 49 66 85 59
2019 65 97 208 22 54 58 41 170 90 80 49 66 85 59
2018 65 97 208 22 54 58 41 170 90 80 49 66 85 59
2017 65 97 208 22 54 58 41 170 90 80 49 66 85 59
2016 65 97 208 22 54 58 41 170 90 80 49 66 85 59
2015 65 97 208 22 54 58 41 170 90 80 49 66 85 59
2014 65 97 208 22 54 58 41 170 90 80 49 66 85 59
2013 65 97 208 22 54 58 41 170 90 80 49 66 85 59
2012 65 97 208 22 54 58 41 170 90 80 49 66 85 59
2011 65 97 208 22 54 58 41 170 90 80 49 66 85 59
2010 65 97 208 22 54 58 41 170 90 80 49 66 85 59
2009 65 97 208 22 54 58 41 170 90 80 49 66 85 59
2008 65 97 208 22 54 58 41 170 90 80 49 66 85 59
2007 65 97 208 22 54 58 41 170 90 80 49 66 85 59
2006 65 97 208 22 54 58 41 170 90 80 49 66 85 59
2005 65 97 208 22 54 58 41 170 90 80 49 66 85 59
2004 65 97 208 22 54 58 41 170 90 80 49 66 85 59
2003 65 97 208 22 54 58 41 170 90 80 49 66 85 59
2002 65 97 208 22 54 58 41 170 90 80 49 66 85 59
2001 65 97 208 22 54 58 41 170 90 80 49 66 85 59
2000 65 97 208 22 54 58 41 170 90 80 49 66 85 59
Units: Cubic hectometres.
Source: Agència Catalana de l'Aigua.

Last update: June 8, 2023.

Methodological note

Definition of concepts

Contribution of a river
Total volume of water that flows in a year (hm³/year) past the point where the volume is measured.
Hydrographical basin
Set of slopes that incline towards a single flow of water.
Gauging station
Point for measuring fluvial volume. The set of stations constitute a network that can be used to evaluate the total hydraulic resources.

Methodological aspects

The Catalan Water Agency (ACA) manages and plans the water cycle, with a vision of integrated water systems, taking into account the balance of all ecosystems. Water becomes a basic structural and functional element to the environment and life. This management must be compatible with the growing demand for permanence, universality and immediacy of the citizens of an advanced society, and ensure quality and good service.

The hydrology section includes fluvial systems. The fluvial systems are distributed by basins. The data refers to the volume of water contributed by rivers at different observation points (gauging stations).

Rivers and tributaries of the inland basins
Rivers and tributaries Gauging station Length (km) Length of basin (km2)
Muga Castelló d'Empúries 65 854
Fluvià Esponellà 97 1.125
Ter Masies de Roda 208 3.010
Ridaura Sta. Cristina d'Aro 22 71
Tordera Sant Celoni 54 894
Besòs Sta. Coloma de Gramenet 58 1.039
Congost la Garriga 41 223
Llobregat Castellbell i el Vilar 170 4.948
Cardener Súria 90 1.373
Anoia St. Sadurní d'Anoia 80 465
Foix Castellet de Foix 49 312
Gaià Vilabella 66 423
Francolí Tarragona 85 838
Siurana Cornudella de Montsant 59 295

Since 2010, the Garrigàs gauging station has been replaced by the one at Esponellà.

As for reservoirs, the volume of water stored per season is recorded. Series tables complement the information to enable comparability.

Unavailable information is represented using the symbol ":". When the value is lower than that of the minimum unit to be able to estimate the statistical operation or if it effects statistical confidentiality, the symbol used is "..".