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Reservoirs. Volume of water. By seasons

Reservoirs. Volume of water. By seasons Catalonia. 2023
Water in reservoir (three-monthly averages)
Rivers and tributaries Reservoirs Winter Spring Summer Autumn Annual average Minimum volume Date minimum volume Maximum volume Date maximum volume
Internal basins
Muga Boadella 19 17 12 9 14 8 31/12/2023 19 1/1/2023
Ter Sau 25 23 38 24 28 11 11/4/2023 53 1/7/2023
Ter Susqueda 89 83 61 46 70 41 17/11/2023 96 31/12/2023
Llobregat Baells 29 30 37 27 31 23 31/12/2023 41 9/7/2023
Cardener Sant Ponç 10 8 9 7 8 6 14/10/2023 11 1/1/2023
Cardener Llosa del Cavall 21 19 20 16 19 14 31/12/2023 22 1/1/2023
Foix Foix 3 2 2 2 2 2 15/9/2023 3 4/3/2023
Gaià Catllar 1 1 0 0 1 1 31/12/2023 1 1/1/2023
Riudecanyes Riudecanyes 1 0 0 0 0 0 31/12/2023 1 1/1/2023
Siurana Siurana 1 1 1 0 1 0 31/12/2023 1 1/1/2023
Ebre basin
Segre Oliana 35 41 50 30 39 20 19/10/2023 66 21/6/2023
Segre Rialb 38 37 65 72 53 22 26/4/2023 85 20/7/2023
Noguera Pallaresa Sist. Capdella .. Confidential data, low reliability or not available .. Confidential data, low reliability or not available .. Confidential data, low reliability or not available .. Confidential data, low reliability or not available .. Confidential data, low reliability or not available .. Confidential data, low reliability or not available .. Confidential data, low reliability or not available .. Confidential data, low reliability or not available .. Confidential data, low reliability or not available
Noguera Pallaresa Sist. Llacs Espot .. Confidential data, low reliability or not available .. Confidential data, low reliability or not available .. Confidential data, low reliability or not available .. Confidential data, low reliability or not available .. Confidential data, low reliability or not available .. Confidential data, low reliability or not available .. Confidential data, low reliability or not available .. Confidential data, low reliability or not available .. Confidential data, low reliability or not available
Noguera Pallaresa Sist. Val d'Aran 8 9 10 8 9 7 28/2/2023 10 30/6/2023
Noguera Pallaresa Certescans 9 10 12 8 10 6 1/10/2023 14 11/7/2023
Noguera Pallaresa Tremp/Talarn 118 133 149 89 123 61 21/10/2023 181 11/7/2023
Noguera Pallaresa Terradets 32 32 32 32 32 30 26/6/2023 33 12/1/2023
Noguera Pallaresa Camarasa 104 102 96 75 95 63 30/11/2023 126 7/3/2023
Noguera Ribagorçana Baserca 9 8 16 17 12 4 15/3/2023 21 18/11/2023
Noguera Ribagorçana Llauset 12 10 12 11 11 5 27/8/2023 15 21/12/2022
Noguera Ribagorçana Cavallers 10 5 13 2 8 0 18/9/2023 16 7/7/2023
Noguera Ribagorçana Escales 80 67 49 67 66 41 8/9/2023 108 8/11/2023
Noguera Ribagorçana Canelles 189 134 97 91 127 81 15/9/2023 205 15/12/2022
Noguera Ribagorçana Santa Anna 115 165 158 115 138 93 14/12/2022 178 15/4/2023
Baix Ebre Guiamets 1 1 1 1 1 1 2/9/2023 1 1/12/2022
Baix Ebre Riba-roja 201 201 196 199 199 178 12/6/2023 208 9/9/2023
Units: Cubic hectometres.
Source: Agència Catalana de l'Aigua (Internal basins); Confederación Hidrográfica del Ebro (Ebre basin).
(..) Confidential data, low reliability or not available.

Last update: September 6, 2024.

Methodological note

Definition of concepts

Hydrographical basin
Set of slopes that incline towards a single flow of water.
Reservoir
Large artificial lake that is formed by interrupting the flow of a river or by creating a lake by means of a large dam.

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

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 "..".