FLOW-DURATION-FREQUENCY CURVES IN HIGH-FLOW CONDITIONS. A STRATEGIC DECISION-MAKING TOOL FOR SELECTED STREAMS IN THE CONSTANTINOIS COASTAL BASIN, NORTHEASTERN ALGERIA

M. LABED, K. SEGHİR, L. BELOULOU

Abstract


Effective management of surface water resources in the Constantinois Coastal Watershed (northeastern Algeria) is challenged by strong climatic variability and complex geomorphological conditions. This semi-arid Mediterranean basin (11,509 km²) is characterized by highly variable and intermittent flow regimes driven mainly by episodic runoff. Conventional hydrological approaches, such as descriptive statistics and rating curves, are inadequate as they do not simultaneously account for flow duration and frequency. This study develops a frequency-based approach using hydrometric discharge series, whose observation periods vary between stations and extend approximately from 1946/1947 to 2006/2007, to construct Discharge-Duration-Frequency (QdF) curves. Mean discharges calculated over successive durations were associated with their occurrence frequencies, following a framework analogous to Intensity–Duration–Frequency (IDF) curves used in rainfall analysis.

Results indicate an average annual runoff of approximately 3,250 hm³. In the Kebir-East wadi, 30-day accumulated runoff volumes are estimated at about 160 and 196 hm³ for return periods of 10 and 20 years, respectively, with uncertainties below 20% based on the Generalized Extreme Value (GEV) distribution.

This work offers an original contribution by extending the QdF approach to intermittent Mediterranean hydro-systems, where hydrological variability and data limitations remain critical constraints. By integrating duration and frequency within a unified probabilistic framework and applying GEV-based synthetic data generation, the proposed method enhances the robustness of flow characterization. It provides a transferable and decision-support tool for water resources management, flood risk mitigation, and hydraulic infrastructure design in semi-arid regions facing increasing hydroclimatic variability


Keywords


Surface Runoff, Frequency Analysis, Discharge-Duration-Frequency Curves (QdF), Constantinois Coastal Basin, Water Resources Management.

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References


ABH-CSM (2000). The Agency Notebooks, Notebook No. 4, Algerian Ministry of Public Works and Spatial Planning, Algiers, Algeria. (In French)

ADIL M., KHATUN S., JAMAL M., JHA S., MEHTA D. (2025). Exploration of the impact of water level variations on composite river banks made of different soil types: a flume study, Larhyss Journal, No 62, pp. 37-57.

AMITOUCHE M., LEFKIR A., REMINI B., MERADJI H., MOKHTARI O. (2017). Chemical discharge on the marine environment from desalination plants in Algeria, Larhyss Journal, No 32, pp. 199-211. (In French)

ANDE R., BIRBAL P.Y., KANNAN S., MEHTA D., NIGAM M. (2025a). Assessment of groundwater storage and urban temporal variations using GRACE satellite data: Case study of Cooum River Basin, India, Journal of Environmental Informatics Letters, Vol. 14, Issue 1, pp. 1-19.

ARGAZ A. (2018). 1D model application for integrated water resources planning and evaluation: case study of Souss river basin, Morocco, Larhyss Journal, No 36, pp. 217-229.

AROUA N. (2018). Water resources in SNAT 2030. between economic needs and ecological requirements, Larhyss Journal, No 35, pp. 153-168. (In French)

AROUA N. (2020). Flood risk reduction strategy in Algiers a brief modern history (XVIthC -XIXthC), Larhyss Journal, No 43, pp. 73-89.

ASSEMIAN A.E., DJE BI DOUTIN S., SAMAKÉ Y. (2021). Consequences of the effects of climate change on water resources in a humid tropical zone of central eastern Côte d’Ivoire, Larhyss Journal, No 45, pp. 95-105. (In French)

ATHMANI H., BOUKEHLIFI KOUIDER D., BENSEFIA S., DJAFRI S.A. (2025). Flood risk assessment in arid regions based on hydraulic modeling with HEC-RAS. case study of wadi Tamda in Doucen, Algeria, Larhyss Journal, No 61, pp. 81-109.

AVITHRAPRIYA S., RAMACHANDRAN A., AHAMED I.S.N., PALANIVELU K. (2022). Climatic projections of Western India using global and regional climate models, Water Practice and Technology, Vol. 17, Issue 9, pp. 1818-1825, https://doi.org/10.2166/wpt.2022.090

AWANG NASRIZAL A.A., FARZANA W., SAAD I., BOLONG N. (2023). Carbonized coconut shell media applicability for stormwater pollution control, Larhyss Journal, No 54, pp. 43-52.

AYARI K., DJEBBI M., CHAKROUN H. (2016). Flood risk mapping of the city of El Bab Medjez by the overflow of the Medjerda, Larhyss Journal, No 25, pp. 285-307. (In French)

BABA HAMED S. (2021). Impact of water pollution on public health and the environment in Oran, Larhyss Journal, No 45, pp. 203-222.

BAUDHANWALA D., KANTHARIA V., PATEL D., MEHTA D., WAIKHOM S. (2023). Applicability of SWMM for urban flood forecasting a case study of the western zone of Surat city, Larhyss Journal, No 54, pp. 71-83.

BEKHIRA A., HABI M., MORSLI B. (2019). The management of flood risk and development of watercourses in urban areas: case of the town of Bechar, Larhyss Journal, No 37, pp. 75-92. (In French)

BENKACI T., MEZENNER N., DECHEMI N. (2020). Exploration of maximum likelihood method in extreme rainfall forecasting using four probability distributions - the case of northern Algeria, Larhyss Journal, No 43, pp. 57-72.

BENSLIMANE M., HAMIMED A., KHALDI A., EL ZERAY W. (2011). Methodological approach to evaluating wetland water management policy in the case of Chott Chergui (southwest Algeria), Larhyss Journal, No 22, pp. 167-181.

BERREZEL Y.A. ABDELBAKI C., ROUISSAT B., BOUMAAZA T., KHALDOON A.M. (2023). Decision support system for the management of water distribution networks a case study of Tourville, Algeria, Larhyss Journal, No 54, pp. 7-24.

BEN SAID M., HAFNAOUI M.A., HACHEMI A., MADI M., BENMALEK A. (2024). Evaluating the effectiveness of the existing flood risk protection measures along wadi Deffa in El-Bayadh city, Algeria, Larhyss Journal, No 59, pp. 7-28.

BENSLIMANE M., BERREKSI A., BENMAMAR S., BOUACH A. (2020). Flood risk numerical simulation of Bejaia city urban zone (Algeria), Larhyss Journal, No 42, pp. 167-178.

BESSENASSE M., GALEA G.A., PAQUIER A. (2006). Application of the convergent Flow-Duration-Frequency (QdF) model to the Saf Saf watershed (Algeria), Larhyss Journal, No 5, pp. 133-137. (In French)

BONG C.H.J., LIEW S.C., SIM J.E., TEO F.Y. (2023). Trend and statistical analysis of annual maximum daily rainfall (AMDR) for Sarawak River basin, Sarawak, Malaysia, Larhyss Journal, No 53, pp. 183-197.

BOUDOUKHA A., MESSAID B. (2014). Electrical characterization of aquifer formations in eastern Algeria, Courier du Savoir, Vol. 18, pp. 77–82. (In French)

BOULGHOBRA N. (2013). Developing a protection plan against the riverine flood risk in urban area the case of Skikda (north-east Algeria), Larhyss Journal, No 13, pp. 31-45.

BOULY S., CISSE A., FAYE C. (2019). Problematic of storm water management in cities in developing countries: case of Santhiaba and Belfort district (commune of Ziguinchor, Senegal), Larhyss Journal, No 39, pp. 313-331.

CHABOKPOUR J., AZAMATHULLA H.M.D., NAMPALLI R.C.R., SYED S. (2025b). Unraveling complex discharge-water quality dynamics, Larhyss Journal, No 62, pp. 107–128.

CHADEE A.A., NARRA M., MEHTA D., ANDREW J., AZAMATHULLA H. (2023b). Impact of climate change on water resource engineering in Trinidad and Tobago, Larhyss Journal, No 55, pp. 215-229.

CHERKI K (2019). Daily and instantaneous flood forecasting using artificial neural networks in a north-west Algerian watershed, Larhyss Journal, No 40, pp. 27-43.

CHOW V.T., MAIDMENT D.R., MAYS L.W. (1988). Applied Hydrology, McGraw-Hill, New York, 572 p.

COLES S. (2001). An Introduction to Statistical Modeling of Extreme Values, Springer, London, 208 p, https://doi.org/10.1007/978-1-4471-3675-0

EZZ H. (2025). Unexpected flooding in Mersa Matruh, Egypt - Investigating causes, hydrological analysis, and flood risk assessment, Larhyss Journal, No 61, pp. 371-399.

FAYE C. (2016). Management of water resources in the local of Ndondol: study of community management of water resources and water use conflicts in Mbomboye villages (Senegal), Larhyss Journal, No 25, pp. 219-240. (In French)

GANGANI P., MANGUKIYA N.K., MEHTA D.J., MUTTIL N., RATHNAYAKE U. (2023). Evaluating the efficacy of different DEMs for application in flood frequency and risk mapping of the Indian coastal river basin, Climate, Vol. 11, Issue 5, Article 114, https://doi.org/10.3390/cli11050114

GRAIRI A., CHOURAK M., BOUSHABA F., CHERIF S.E. (2017). Characterization of river floods on the Saïdia plain (north-eastern Morocco), Journal of Materials and Environmental Science, Vol. 8, Supplement, pp. 4734-4743.

GRIMALDI S., PETROSELLI A., TAURO F., PORFIRI M. (2012). Time of concentration: A paradox in modern hydrology, Hydrological Sciences Journal, Vol. 57, Issue 2, pp. 217-288.

GRUBBS F.E., BECK G. (1972). Extension of sample sizes and percentage points for significance tests of outlying observations, Technometrics, Vol. 14, Issue 4, pp. 847-854, https://doi.org/10.1080/00401706.1972.10488981

HACHEMI A., BENKHALED A. (2016). Flood-Duration-Frequency modeling: Application to Wadi Abiodh (Biskra, Algeria), Larhyss Journal, No 27, pp. 277-297. (In French)

HOUICHI L. (2017). Appropriate formula for estimating rainfall intensity of selected duration and frequency: a case study, Larhyss Journal, No 30, pp. 67-87. (In French)

HOUNTONDJI B., CODO F.P., DAHOUNTO S.V.H., GBAGUIDI T.B. (2019). Flood management in urban environment: case of the Cotonou city in Benin, Larhyss Journal, No 39, pp. 333-347. (In French)

IKBAL J., ALI S.A., ALDHARAB H. (2017). Morphological characteristics of a micro-watershed of the Katla River in Udaipur District (Rajasthan), International Journal of Current Research, Vol. 9, Issue 9, pp. 57708-57715.

KETROUCI K., MEDDI M. (2015). Application of Flow-Duration-Frequency (QdF) models for estimating rare floods in Algeria: Case of the Tafna watershed, Bulletin of the Scientific Institute, Earth Sciences Section, Vol. 37, pp. 45-54. (In French)

KIM H., SEO Y., BAIK J. (2024). Improved frequency analysis of extreme hydrologic events under non-stationarity, Journal of Hydrology, Vol. 627, Paper ID 130292.

KOULOUGHLI C.E., TELLI A. (2023). Modern water supply management techniques and methods: a review, Larhyss Journal, No 55, pp. 7-23.

KOUTSOYIANNIS D. (2020). Uncertainty, entropy, and the science of hydrology, Water, Vol. 12, Issue 6, 1694, https://doi.org/10.3390/w12061694

LANG M., OUARDA T.B.M.J., BOBÉE B. (1999). Towards operational guidelines for over-threshold modeling. Journal of Hydrology, Vol. 225, Issues 3-4, pp. 103-117, https://doi.org/10.1016/S0022-1694(99)00167-5

LANGE M.A. (2020). Climate change in the Mediterranean: Environmental impacts and extreme events, IEMed Yearbook, pp. 35–45.

LONG A., MOKHTAR M., HALIM S., AHMED F. (2023). Fostering inclusive watershed management through Multihelix engagement model on micro hydropower electrification in Sabah, Malaysia, Larhyss Journal, No 56, pp. 7-24.

MAH D.Y.S., DAYANG NUR HUWAIDA A.S., TEO F.Y. (2023). Investigation of historical extreme rainfall on permeable road in a commercial centre, Larhyss Journal, No 53, pp. 165-182.

MARKAD S., ADINATH T., MARKAD A.T., PATIL D. (2020). Hydro-morphological appraisal of river sub-basin using remote sensing and GIS tools, International Journal of Fisheries and Aquatic Studies, Vol. 8, Issue 4, pp. 148–152.

MATHWAVE TECHNOLOGIES (2021). EasyFit 5.6: Distribution fitting software, Data analysis and simulation guide, MathWave Technologies, software manual.

MEBARKI A. (1999). Exorheic basins of eastern Algeria and their low-flow contributions to the Mediterranean Sea: runoff, discharges, and coastal water protection, Proceedings of the Study Days on the Protection of Coastal Waters of Eastern Algeria, Algerian Basin Authorities – Catchment Management (ABH-CSM), May 12-14, Annaba, Algeria, pp. 24-41. (In French)

MEHTA D., DHABUWALA J., YADAV S.M., KUMAR V., AZAMATHULLA H.M. (2023a). Improving flood forecasting in Narmada River basin using hierarchical clustering and hydrological modelling, Results in Engineering, Vol. 20, Article No. 101571, https://doi.org/10.1016/j.rineng.2023.101571

MEHTA D., HADVANI J., KANTHARIYA D., SONAWALA P. (2023b). Effect of land use land cover change on runoff characteristics using curve number: a GIS and remote sensing approach, International Journal of Hydrology Science and Technology, Vol. 16, Issue 1, pp. 1-16, https://doi.org/10.1504/IJHST.2023.131824

MEHTA D., ACHOUR B., PASTAGIA J., AZAMATHULLA H., VERMA S. (2023c). Review of reservoir operation, Larhyss Journal, No 56, pp. 193-214.

MEHTA D., NANAVATI N., YADAV S.M. (2025). Rainfall prediction using soft computing techniques: A case study of Purna River Basin, International Journal of Hydrology Science and Technology, Vol. 20, Issue 3, pp. 231-249.

MEZENNER N., BENKACI T., BERMAD A., DECHEMI N. (2022). Dam reservoir operation optimization using genetic algorithm and principal component analysis simulation model - case of dam Ghrib, Larhyss Journal, No 51, pp. 145-160.

NAKOU T.R., SENOU L., ELEGBEDE B., CODO F.P. (2023). Climate variability and its impact on water resources in the lower mono river valley in Benin from 1960 to 2018, Larhyss Journal, No 56, pp. 215-234.

NASSA R.A.K., KOUASSI A.M., BOSSA S.J. (2021). Analysis of climate change impact on the statistical adjustment models of extreme rainfall case of Ivory Coast, Larhyss Journal, No 46, pp. 21-48.

NICHANE M., KHELIL M.A. (2015). Climate change and water resources in Algeria - vulnerability, impact and adaptation strategy, Larhyss Journal, No 21, pp. 25-33. (In French)

OANCEA V., GALEA G., OBERLI G. (1992). Use of Flow-Duration-Frequency (QdF) models in regional synthesis of maximum runoff, Regionalization in Hydrology, Proceedings of the 8th Hydrological Days of the French Research Institute for Development (ORSTOM), September 21–25, 1992, Montpellier, France, pp. 433-451.

OLOFINTOYE O.O., SULE B.F., SALAMI A.W. (2009). Best-fit probability distribution model for peak daily rainfall of selected cities in Nigeria, New York Science Journal, Vol. 2, Issue 3, pp. 1-12.

ONYUTHA C., WILLEMS P. (2015). Empirical statistical characterization and regionalization of amplitude–duration–frequency curves for extreme peak flows in the Lake Victoria Basin, Hydrological Sciences Journal, Vol. 60, Issue 6, pp. 997-1012.

ORTA S., AKSOY H. (2022). Development of low-flow duration–frequency curves by hybrid frequency analysis, Water Resources Management, Vol. 36, pp. 1521-1534.

OUATTARA D., DIAWARA H., SOUMAORO L., KONE A.B., GAIDUKOVA E.V. (2022). Realization of a layout and management plan for the Sadiola bottomland in the Koutiala cercle in southern Mali, Larhyss Journal, No 52, pp. 61-76.

PANCHAL S.L., SURYANARAYANA T.M.V. (2025). Optimized operation of a multipurpose reservoir by evolutionary algorithm for Panam reservoir project in eastern Gujarat, India, Larhyss Journal, No 61, pp. 31-52.

PANDEY P., MISHRA R., CHAUHAN R.K. (2022). Future prospects in the implementation of a real-time smart water supply management and water quality monitoring system, Larhyss Journal, No 51, pp. 237-252.

PASTAGIA J., MEHTA D., CHADEE A., VERMA S., RATHOD A. (2025). Application of the IPTA method for detecting precipitation changes under a changing climate: A case study approach, Larhyss Journal, No 63, pp. 155-174.

QURESHI H.U., ABBAS I., SHAH S.M.H., TEO F.Y. (2024). Hydrologic evaluation of monthly and annual groundwater recharge dynamics for a sustainable groundwater resources management in Quetta city, Pakistan, Larhyss Journal, No 60, pp. 27-53.

RENIMA M., REMAOUN M., BOUCEFIANE A., SADEUK BEN ABBES A. (2018). Regional modelling using the flood-duration-frequency approach in the middle Cheliff watershed, Journal of Water and Land Development, Vol. 36, pp. 129–141.

SAIDI M.E.M., BOUKRIM S., FNIGUIRE F., RAMROMI A. (2012). Surface flows on the high atlas of Marrakech - case of extreme flows, Larhyss Journal, No 10, pp. 75-90. (In French)

SALAS J.D., OBEYSEKERA J. (2020). Revisiting the concepts of return period and risk for nonstationary hydrologic extreme events, Journal of Hydrologic Engineering, Vol. 25, Issue 5, Paper ID 06020001.

SHAIKH A.F., BHIRUD Y.L., MORE S.B., PAWAR A.D., VAIDYA O.V. (2024). Comparative analysis of optimization algorithms for reservoir operations: a case study on Ukai dam, Larhyss Journal, No 58, pp. 179-196.

SMAKHTIN V.U. (2001). Low-flow hydrology: A review, Journal of Hydrology, Vol. 240, pp. 147–186.

SONI S. (2017). Assessment of morphometric characteristics of the Chakrar watershed (Madhya Pradesh, India) using geospatial techniques, Applied Water Science, Vol. 7, pp. 2089–2102.

ST-HILAIRE A. (2005a). Frequency analysis of precipitation at the Montreal and Shawinigan stations, Research Report R832, National Institute for Scientific Research – Water, Earth and Environment (INRS-ETE). (In French)

ST-HILAIRE A. (2005b). Frequency analysis: An overview for hydrologists, Canadian Water Resources Journal, Vol. 30, Issue 3, pp. 295-306.

SUNG J.H., CHUNG E.S. (2014). Development of streamflow drought severity–duration–frequency curves using the threshold level method, Hydrology and Earth System Sciences, Vol. 18, pp. 3341-3351.

TRIVEDI M., SURYANARAYANA T.M.V. (2023). An assessment of optimal operation policies for a reservoir using particle swarm optimization, Larhyss Journal, No 56, pp. 107-121.

VERMA S., SAHU R.T., PRASAD A.D., VERMA M.K. (2023). Reservoir operation optimization using ant colony optimization a case study of Mahanadi reservoir project complex Chhattisgarh – India, Larhyss Journal, No 53, pp. 73-93.

VERMA S., VERMA M.K., PRASAD A.D., ISLAM M.N., MEHTA D. (2024). Modeling of uncertainty in the estimation of hydrograph components in conjunction with the SUFI-2 optimization algorithm by using multiple objective functions, Modeling Earth Systems and Environment, Vol. 10, pp. 61-79.

https://doi.org/10.1007/s40808-023-01758-7

VILA J.M. (1980). The north-eastern Alpine chain and the Algerian–Tunisian border regions, State Doctoral Thesis, Pierre and Marie Curie University (Paris VI), France. (In French)

VILLARINI G., SERINALDI F., SMITH J.A., KRAJEWSKI W.F. (2021). On the frequency analysis of flood peaks: A review and discussion, Water Resources Research, Vol. 57, Issue 9, Paper ID e2020WR028731.

WANG X., CHEN X., LI Y. (2023). Applications of discharge-duration-frequency curves for reservoir operation under climate variability, Journal of Hydrology, Vol. 620, Paper Number 129412.

WILDI W. (1983). The Tello-Rif chain (Algeria, Morocco, Tunisia): structure, stratigraphy, and evolution from the Triassic to the Miocene, Journal of Dynamic Geology and Physical Geography, Vol. 10, pp. 201-297. (In French)

YAHIAOUI A., TOUAÏBIA B., BOUVIER C., DECHE N. (2011). Flood regime modelling using the Flow–Duration–Frequency approach for the Oued Mekerra basin (western Algeria), Journal of Water Sciences, Vol. 24, Issue 2, pp. 87-191. (In French)

ZEGAIT R., PIZZO H.S. (2023). Flood control reservoir using VBA simulation case of Idles basin in southern Algeria, Larhyss Journal, No 53, pp. 41-60.


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