Estimation of evaporation in Andalusian reservoirs: Proposal of an index for the assessment and classification of dams
Study region: This study focuses on Andalusia (Southern Spain), a mediterranean region of 87,270 km2. Andalusia experiences significant water stress, making effective water management crucial. Study focus: Evaporation is a key element of the water budget, particularly in arid and semi-arid climates,...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-04-01
|
| Series: | Journal of Hydrology: Regional Studies |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214581825000485 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1823864421029511168 |
|---|---|
| author | Santiago García-López Marcia Salazar-Rojas Mercedes Vélez-Nicolás Jorge. M.G.P. Isidoro Verónica Ruiz-Ortiz |
| author_facet | Santiago García-López Marcia Salazar-Rojas Mercedes Vélez-Nicolás Jorge. M.G.P. Isidoro Verónica Ruiz-Ortiz |
| author_sort | Santiago García-López |
| collection | DOAJ |
| description | Study region: This study focuses on Andalusia (Southern Spain), a mediterranean region of 87,270 km2. Andalusia experiences significant water stress, making effective water management crucial. Study focus: Evaporation is a key element of the water budget, particularly in arid and semi-arid climates, where losses from reservoirs represent a significant fraction of the volume annually regulated and compromise the efficiency of these infrastructures. This study aims to (i) estimate the annual volume of water evaporated from large dams (> 5 hm³) in Andalusia and (ii) propose an index to classify reservoirs based on evaporative losses. New hydrological insights for the region: Data from 76 large dams in Andalusia, including their descriptive characteristics, morphometric details, and hydrological information, were retrieved from institutional sources. The monthly average flooded area was calculated from the Area-Volume-Elevation (AVE) curve, while monthly average evaporation rate was calculated through the FAO Penman-Monteith equation using meteorological data. The combination of both variables has allowed to estimate the mean monthly volume of water evaporated in each reservoir. Results were validated with isotopic content (¹⁸O and ²H) from selected reservoirs. The annual average volume evaporated from Andalusian reservoirs was estimated at 547 hm3/year (8.0 % of the inflows). Evaporative losses represent 1.1 % of inflows in the most efficient reservoirs, while in others, losses exceed 30 %, reaching 54 % in the most extreme case. |
| format | Article |
| id | doaj-art-a2d76cf3e9ef40a8a14650fc4595336c |
| institution | Kabale University |
| issn | 2214-5818 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Hydrology: Regional Studies |
| spelling | doaj-art-a2d76cf3e9ef40a8a14650fc4595336c2025-02-09T05:00:29ZengElsevierJournal of Hydrology: Regional Studies2214-58182025-04-0158102224Estimation of evaporation in Andalusian reservoirs: Proposal of an index for the assessment and classification of damsSantiago García-López0Marcia Salazar-Rojas1Mercedes Vélez-Nicolás2Jorge. M.G.P. Isidoro3Verónica Ruiz-Ortiz4Geoscience Research Group, RNM 373, Faculty of Marine and Environmental Sciences, Campus Río San Pedro, University of Cadiz, Puerto Real, Spain; INMAR - Institute for Marine Research, Campus Río San Pedro, University of Cadiz, Puerto Real, SpainGeoscience Research Group, RNM 373, Algeciras School of Engineering and Technology, Campus Bay of Algeciras, University of Cadiz, Algeciras, Spain; Corresponding author.Geoscience Research Group, RNM 373, Faculty of Marine and Environmental Sciences, Campus Río San Pedro, University of Cadiz, Puerto Real, Spain; INMAR - Institute for Marine Research, Campus Río San Pedro, University of Cadiz, Puerto Real, SpainDepartment of Civil Engineering, Institute of Engineering, University of Algarve, Campus da Penha, Faro, Portugal; CIMA - Centre for Marine and Environmental Research / ARNET - Aquatic Research NETwork, Campus de Gambelas, Faro, PortugalGeoscience Research Group, RNM 373, Algeciras School of Engineering and Technology, Campus Bay of Algeciras, University of Cadiz, Algeciras, SpainStudy region: This study focuses on Andalusia (Southern Spain), a mediterranean region of 87,270 km2. Andalusia experiences significant water stress, making effective water management crucial. Study focus: Evaporation is a key element of the water budget, particularly in arid and semi-arid climates, where losses from reservoirs represent a significant fraction of the volume annually regulated and compromise the efficiency of these infrastructures. This study aims to (i) estimate the annual volume of water evaporated from large dams (> 5 hm³) in Andalusia and (ii) propose an index to classify reservoirs based on evaporative losses. New hydrological insights for the region: Data from 76 large dams in Andalusia, including their descriptive characteristics, morphometric details, and hydrological information, were retrieved from institutional sources. The monthly average flooded area was calculated from the Area-Volume-Elevation (AVE) curve, while monthly average evaporation rate was calculated through the FAO Penman-Monteith equation using meteorological data. The combination of both variables has allowed to estimate the mean monthly volume of water evaporated in each reservoir. Results were validated with isotopic content (¹⁸O and ²H) from selected reservoirs. The annual average volume evaporated from Andalusian reservoirs was estimated at 547 hm3/year (8.0 % of the inflows). Evaporative losses represent 1.1 % of inflows in the most efficient reservoirs, while in others, losses exceed 30 %, reaching 54 % in the most extreme case.http://www.sciencedirect.com/science/article/pii/S2214581825000485Reservoir EvaporationLarge DamsClassification IndexAndalusian Reservoirs, Reservoir Efficiency |
| spellingShingle | Santiago García-López Marcia Salazar-Rojas Mercedes Vélez-Nicolás Jorge. M.G.P. Isidoro Verónica Ruiz-Ortiz Estimation of evaporation in Andalusian reservoirs: Proposal of an index for the assessment and classification of dams Journal of Hydrology: Regional Studies Reservoir Evaporation Large Dams Classification Index Andalusian Reservoirs, Reservoir Efficiency |
| title | Estimation of evaporation in Andalusian reservoirs: Proposal of an index for the assessment and classification of dams |
| title_full | Estimation of evaporation in Andalusian reservoirs: Proposal of an index for the assessment and classification of dams |
| title_fullStr | Estimation of evaporation in Andalusian reservoirs: Proposal of an index for the assessment and classification of dams |
| title_full_unstemmed | Estimation of evaporation in Andalusian reservoirs: Proposal of an index for the assessment and classification of dams |
| title_short | Estimation of evaporation in Andalusian reservoirs: Proposal of an index for the assessment and classification of dams |
| title_sort | estimation of evaporation in andalusian reservoirs proposal of an index for the assessment and classification of dams |
| topic | Reservoir Evaporation Large Dams Classification Index Andalusian Reservoirs, Reservoir Efficiency |
| url | http://www.sciencedirect.com/science/article/pii/S2214581825000485 |
| work_keys_str_mv | AT santiagogarcialopez estimationofevaporationinandalusianreservoirsproposalofanindexfortheassessmentandclassificationofdams AT marciasalazarrojas estimationofevaporationinandalusianreservoirsproposalofanindexfortheassessmentandclassificationofdams AT mercedesveleznicolas estimationofevaporationinandalusianreservoirsproposalofanindexfortheassessmentandclassificationofdams AT jorgemgpisidoro estimationofevaporationinandalusianreservoirsproposalofanindexfortheassessmentandclassificationofdams AT veronicaruizortiz estimationofevaporationinandalusianreservoirsproposalofanindexfortheassessmentandclassificationofdams |