Prof. Dr. Ragab Ragab

Personal Information

Brief Profile

Dr. Ragab obtained his BSc. in Soil and Water Sciences (1970), MSc. in Irrigation (1974), and Ph.D, in Rural Engineering from the University of Leuven, Belgium (1982). Presently, he is serving as a Fellow Principal Hydrologist and Water Resources Management Specialist at UK Centre for Hydrology, Wallingford. As an editor at the Journal of Agricultural Science, he contributes to Cambridge University Press (2013-present). He is also serving as an Adjunct Professor at Soil and Water Sciences Dept., the University of Alexandria, Egypt since 2006.

He has more than 40 years of experience in irrigation, drainage, catchments hydrology, remote sensing application in hydrology, integrated water management, climate change impact on water resources, soil-water-plant- atmosphere relations, rainfall harvesting, use of poor-quality water (saline/brackish, treated wastewater) for crop production, organic farming and urban hydrology.

Dr. Ragab is also associated with many professional organizations which include: British Society of Soil Science Society, Irrigants Europe - IE, and European Soil and Land Use Management. He has contributed over 130 peer-reviewed publications, excluding reports, and developed models like IHMS, SALTMED 2019, and HYDROMED and has also received global awards and recognitions for his commendable work in the irrigation and drainage sector, including Egypt State Recognition and Merit Award for Scientific Achievements, The Baron’s 500: Leaders for the New Century, ICID Award of Excellence (2002, 2012, 2013, 2014) and Best Paper Award 2018.

Dr. Ragab has actively contributed to the ICID activities as the Vice President of ICID from 2010-2013 and has also served as the Chairman of the British National Committee on Irrigation and Drainage (ICID-UK) (2007- 2011) and headed many ICID working groups.

[VERSION FRANÇAISE]

Prof. Dr. Ragab Ragab
2020-2023, RU

Dr Ragab titulaire de Licence (B.Sc.)) en sciences des sols et de l'eau (1970), de maîtrise (M.Sc.) en Irrigation (1974) et de Doctorat en Génie Rural de l'Université de Louvain, Belgique (1982). Actuellement, il est hydrologue principal et spécialiste de la gestion des ressources en eau au Centre de l’hydrologie, à Wallingford, au Royaume-Uni En tant que Rédacteur de la Revue de la Science agricole, il contribue à Cambridge University Press (depuis 2013 jusqu’à présent). Depuis 2006, il a retenu le poste du Professeur adjoint au département des sciences des sols et de l'eau à l'Université d'Alexandrie, en Égypte.

Il possède une expérience de plus de 40 ans dans le domaine de l’irrigation, du drainage, de l’hydrologie des bassins versants, de l'application de la télédétection en hydrologie, de la gestion intégrée de l'eau, de l'impact du changement climatique sur les ressources en eau, des relations entre sol-eau-plante-atmosphère, de la collecte des eaux de pluie, de l'utilisation de l’eau de mauvaise qualité (saline / saumâtre, eaux usées traitées) en production agricole, de l'agriculture biologique et de l'hydrologie urbaine.

Le Dr Ragab est également associé à de nombreuses organisations professionnelles, notamment: British Society of Soil Science Society, Irrigants Europe - IE et European Soil and Land Use Management. Il a contribué à 122 publications sélectionnées, sauf des rapports, et a développé des modèles tels que IHMS, SALTMED 2019 et HYDROMED. Il a également reçu des prix et des reconnaissances mondiales pour son travail louable dans le secteur de l'irrigation et du drainage, y compris la reconnaissance de l'État égyptien et le Prix de la valeur pour les réalisations scientifiques, The Baron's 500: Dirigeants pour le siècle à venir, Prix CIID pour l’Excellence (2002, 2012, 2013, 2014) et Prix pour le meilleur rapport 2018.

Il a étroitement contribué aux activités CIID en tant que Vice-président de la CIID depuis 2010 jusqu’à 2013 et a également assuré la présidence du Comité national des Irrigations et du Drainage du Royaume-Uni (CIID-UK) (2007-2011) et a dirigé de nombreux groupes de travail CIID.

Publications

Articles:

• Towards Water, Food and Energy Security: The Global Challenges and Possible Solutions for a Holistic Vision of Sustainability, 19 October 2025 by PH Dr. Ragab Ragab (UK)
• Misconceptions and misunderstandings in agricultural water management: Time for revisiting, reflection and rethinking, 13 February 2024 by PH Dr. Ragab Ragab (UK) 
• Baktybek Duisebek, Maria Shahgedanova, Andrew J. Wade, Ragab Ragab, Zarina Saidaliyeva, Nikolay Kasatkin, 2026. Climate warming accelerates maize phenology and reduces water requirements and yields in south-eastern Kazakhstan. Agricultural Water Management 329 (2026). https://doi.org/10.1016/j.agwat.2026.110343
• Ragab Ragab. 2025. Editorial: Water and Climate: Building Resilient Communities. A World Water Policy Journal Special Issue Featuring Cairo Water Week. Volume11, Issue 2, 385-392. https://doi.org/10.1002/wwp2.70005
• Ragab Ragab 2025. Lead Guest Editor. 2025. Water and Climate: Building Resilient Communities. A World Water Policy Journal Special Issue Featuring Cairo Water Week. World Water Policy: Volume 11, Issue 2. Pages: 377-669. https://doi.org/10.1002/wwp2.12199
• Ragab Ragab. 2025. Comments on a paper published by Ali Shabani et al. 2024.: how accurate is the SALTMED model in simulating rapeseed yield and growth under different irrigation and salinity levels? Modeling earth systems and environment. Modeling Earth Systems and Environment (2025) 11:53. https://doi.org/10.1007/s40808-024-02251-5
• Ragab Ragab 2025. Proceedings of the International Workshop on Implementation of the Water-Energy-Food (WEF) Nexus for Building Resilience, Adaptation and Sustainable SocioEconomic Development 7 September 2025, Kuala Lumpur, Malaysia. https://icid-ciid.org/icid_data_web/WIF4-ProcWS-WG-WFEN.pdf
• Somya Said Ahmed, Hoda Kamal Soussa, Nagy Ali Ali Hassan, Ramadan Eid Abdelraouf, Gehan Sallam and  Ragab Ragab. 2024. Impact of fish farm drainage water reuse for irrigation on barley yield and water productivity: Field study and simulation using the SALTMED model. Irrig. and Drain.  First published online: 26 December 2024 2024;1–20.  https://doi.org/10.1002/ird.3069

• Ragab Ragab. 2024. Editorial: Special issue of Irrigation and Drainage with selected papers of the 25th Congress of the International Commission on Irrigation and Drainage (ICID) on the theme “Tackling water scarcity in agriculture”. Irrigation and Drainage 73(5), Pages: 1659-1662.  https://doi.org/10.1002/ird.3042

• Narges Zohrabi, Ragab Ragab, Behzad Navidi Nassaj, Firoozeh Farahani, Saeed Nairizi.2024. Role of women in the water–energy–food (WEF) nexus challenges and opportunities. Irrigation and Drainage 73(5), Pages: 1889-1899   https://doi.org/10.1002/ird.3027

• Hani Mehanna, Ayman Saber, Ghada Samaha, Mahmod Abd El-Aziz and Ragab Ragab. 2024.  Estimating yield stability and predicting the response of sesame genotypes to climate change  using the SALTMED model. Irrig. and Drain. 2024;73:1483–1495. DOI: 10.1002/ird.2970

• Chauhdary, J.N.; Li, H.;Ragab, R.; Rakibuzzaman, M.; Khan, A.I.; Zhao, J.; Akbar, N. 2024. Climate Change Impacts on Future Wheat (Triticum aestivum) Yield, Growth Periods and Irrigation Requirements: A SALTMED Model Simulations Analysis. Agronomy 2024, 14, 1484. https://doi.org/10.3390/

• Junaid Nawaz Chauhdary, Hong Li, Ragab Ragab, Zawar Hussain, Muhammad Akhlaq, and Imran Ali Lakhiar. 2024. Effects of water quality and nitrogen on wheat productivity: Experimental and modelling study using the SALTMED model. Irrig. and Drain. 2024;1–15. DOI: 10.1002/ird.3034

• R.E. Abdelraouf, M.A. El-Shawadfy, A.B. Bakry, H.K. Abdelaal1, M.A. El-Shirbeny,  R.Ragab, and S.L. Belopukhov. 2024. Estimating ETo and scheduling crop irrigation using  Blaney–Criddle equation when only air-temperature data are available and solving the issue  of missing meteorological data in Egypt. BIO Web of Conferences 82, 02020 (2024).  https://doi.org/10.1051/bioconf/20248202020 

•  Ragab Ragab 2024. Proceedings of the International Workshop on Water-Energy-Food Nexus 1-7 September 2024, Sydney, Australia. ISBN: 978-81-89610-44-9. https://icid-ciid.org/icid_data_web/wfen_proc_sydney2024.pdf

•   Aly, A.A., Gaber, H.M., Ragab, R. (2024). The Integrated Management of Egypt’s Resources Within the Water-Energy-Food Nexus. In: Negm, A.M., ElZein, Z. (eds) Integration of Core Sustainable Development Goals in Rural Areas . Earth and Environmental Sciences Library. Springer, Cham. 
    https://doi.org/10.1007/978-3-031-60149-1_10

• Ragab Ragab and Nadine Depre. 2023 (Guest Editors). Micro irrigation in the era of technology: Innovation and digital transformation Special issue on Coping with water scarcity: New advances in Africa and beyond. World Water Policy Journal, WWP. Volume 9, Issue 4, Pages: 669-972

• Ragab Ragab and Nadine Depre. 2023. (Guest Editors) Micro irrigation in the era of technology: Innovation and digital transformation (Editorial). Special issue on Coping with water scarcity: New advances in Africa and beyond. World Water Policy Journal, WWP. Volume9, Issue4. Pages 678-681. https://doi.org/10.1002/wwp2.12155  

• Ayman El-Sayed, H. Hashem Mustafa, B.M.M. Bakr, R.E. Abdelraouf, R. Ragab & N.E. Mansour. 2023. Improving mango production using partial root drying technique and organic fertilisation: Field and modeling study. Water Science, 37:1,  371-388, DOI: 10.1080/23570008.2023.2278999
•  Mansour N. E., Ayman El-Sayed, D. M. Sabra, S. M. A. Nassar, B. A. Bakry, R. E. Abdelraouf and R. Ragab.2023. Water productivity of barley crop under laser land leveling technique and minimum tillage, Water Science, 37:1, 458-471, DOI: 10.1080/23570008.2023.2290936
• Ragab Ragab. 2023. (Editorial). Innovation and research in agriculture water management to achieve sustainable development goals. Special Issue: Innovation and research in agriculture water management to achieve sustainable development goals. First Published: 12 November 2023, Irrigation and Drainage Journal, Volume 72, Issue 5, Pages: 1195-1199. https://doi.org/10.1002/ird.2902
• Masoumeh Afshani , Mahdi Sarai Tabrizi  and Mostafa Teimoori , and Ragab Ragab. 2023. Research on the status of the irrigation and drainage network in Iran based on the viewpoint of water users and experts using SWOT analysis. Irrigation and Drainage Journal, 23;1–13. DOI: 10.1002/ird.2871
•  Redouane Choukr-Allah and Ragab Ragab (Editors). 2023. Biosaline Agriculture as a  Climate Change Adaptation for Food Security. Springer. ISBN 978-3-031-24278-   6 ISBN 978-3-031-24279-3 (eBook), https://doi.org/10.1007/978-3-031-24279-3 (422pp). 
• Redouane Choukr-Allah and Ragab Ragab. 2023. Using Saline Water in Biosaline Agriculture for Food Security. In  Redouane Choukr-Allah and Ragab Ragab (Eds) Part 1 in Biosaline Agriculture as a Climate Change Adaptation for Food Security. Springer. ISBN 978-3-031-24278-6 ISBN 978-3-031-24279-3 (eBook), https://doi.org/10.1007/978-3-031-24279-3 (3- 12) 
• Ragab Ragab. 2023. Use of Models as Management Tools, SALTMED Model as a Tool for Water, Crop, Field, and N-Fertilizers Management. Part VI in RedouanRagab Ragab. 2023 (Editor). Report on New Advances in Water Saving in Irrigation. 25th ICID Congress and 74th IEC Meeting, 1-8 November 2023. Visakhapatnam (Vizag), Andhra Pradesh State, India. © International Commission on Irrigation and Drainage (ICID), 2023. ISBN: 978-81-89610-37-1. Pages1-130 :  https://icid-ciid.org/icid_data_web/25CongWorkshop-ReportNewAdvances.pdfe Choukr-Allah and Ragab Ragab (Eds) Biosaline Agriculture as a Climate Change Adaptation for Food Security. Springer. ISBN 978-3-031-24278-6 ISBN 978-3-031-24279-3 (eBook), https://doi.org/10.1007/978-3-031-24279-3 (325- 376) 
• Ragab Ragab. 2023. Proceedings of papers presented at the International Workshop on
  The Water-Energy-Food-Nexus: Implementation and Examples of Application. 25th ICID Congress and 74th IEC Meeting, 1-8 November 2023. Visakhapatnam (Vizag), Andhra Pradesh State, India. © International Commission on Irrigation and Drainage (ICID), 2023ISBN: 978-81-89610-36-4. Pages 1-120. :  https://icid-ciid.org/icid_data_web/25CongWorkshop-WFE-N.pdf
• Ragab Ragab. 2022. Proceedings of Papers presented for International Workshop on    Water- Energy-Food-Nexus: Implementation and Examples of Application 24th   International  Congress on Irrigation and Drainage, 3-10 October 2022, Adelaide, Australia.   The    International Commission on Irrigation and Drainage (ICID).    https://icid-ciid.org/icid_data_web/Workshop_WFEN2022.pdf
• Elmeddahi, Yamina; Ragab, Ragab. 2022 Prediction of the groundwater quality index through machine learning in Western Middle Cheliff plain in north Algeria. Acta Geophysica. https://doi.org/10.1007/s11600-022-00827-2
• Pawan S. Wable,  Kaushal K. Garg, Rajesh Nune, Akuraju Venkataradha,Anantha KH, Veena Srinivasan, Ragab Ragab, John Rowan, Virginie Keller, Pradeep Majumdar,  Gwyn Rees, Ramesh Singh, Sreenath Dixit. 2022. Impact of agricultural water management interventions on upstream–downstream trade-offs in the upper Cauvery catchment, southern India: a modelling study. https://doi.org/10.1002/ird.2662 Irrig. and Drain.2021;1–23.
• Nune, R., George, B.A., Western, A.W., Garg, K.K., Dixit, S., Ragab, R., 2021. A  comprehensive assessment framework for attributing trends in streamflow and groundwater storage to climatic and anthropogenic changes: A case study in the typical semi‐arid catchments of southern India. Hydrological Processes, 35(8). DOI:10.1002/hyp.14305.

• Garg, Kaushal K.; Anantha, K.H.; Radha, A. Venkata; Dixit, Sreenath; Singh, Ramesh; Ragab, Ragab. 2021 Impact of rainwater harvesting on hydrological processes in a fragile watershed of South Asia. Groundwater. https://doi.org/10.1111/gwat.13099
• Ouda, Samiha; Noreldin, Tahany; Alarcón, Juan José; Ragab, Ragab; Caruso, Gianluca; Sekara, Agnieszka; Abdelhamid, Magdi T.. 2021 Response of spring wheat (Triticum aestivum) to deficit irrigation management under the semi-arid environment of Egypt: field and modeling study [in special issue: Impact of climate change on agriculture] Agriculture, 11 (2), 90. 13, pp. https://doi.org/10.3390/agriculture11020090
• Beekma, Jelle; Bird, Jeremy; Mersha, Adey Nigatu; Reinhard, Stijn; Prathapar, Sanmugam Ahembaranathan; Rasul, Golam; Richey, Jeffrey; Campen, Jouke Van; Ragab, Ragab; Perry, Chris; Mohtar, Rabi; Tollefson, Laurie; Tian, Fuqiang. 2021 Enabling policy environment for water, food and energy security. Irrigation and Drainage. https://doi.org/10.1002/ird.2560
• Dewedar, O.M.; Plauborg, Finn; Marwa, M.A.; El‐shafie, A.F.; Ragab, R. . 2020 Improving water saving, yield, and water productivity of bean under deficit drip irrigation: field and modelling study using the SALTMED model. Irrigation and Drainage. https://doi.org/10.1002/ird.2539
• Afzal, M.; Ragab, R.. 2020 Impact of the future climate and land use changes on the hydrology and water resources in South East England, UK. American Journal of Water Resources, 8 (5). 218-231. https://doi.org/10.12691/ajwr-8-5-2
• Afzal, M.; Ragab, R. . 2020 Assessment of the potential impacts of climate change on the hydrology at catchment scale: modelling approach including prediction of future drought events using drought indices. Applied Water Science, 10 (10), 215. 19, pp. https://doi.org/10.1007/s13201-020-01293-1
• Afzal, M.; Ragab, R.. 2020 How do climate and land use changes affect the water cycle? Modelling study including future drought events prediction using reliable drought indices. Irrigation and Drainage, 69 (4). 806-825. https://doi.org/10.1002/ird.2467
• Garg, Kaushal K.; Anantha, K.H.; Nune, Rajesh; Akuraju, Venkata Radha; Singh, Pushpraj; Gumma, Murali Krishna; Dixit, Sreenath; Ragab, Ragab. 2020 Impact of land use changes and management practices on groundwater resources in Kolar district, Southern India. Journal of Hydrology: Regional Studies, 31, 100732. 21, pp. https://doi.org/10.1016/j.ejrh.2020.100732
• Ragab, Ragab ; Kaelin, Alexandra; Afzal, Muhammad; Panagea, Ioanna. 2020 Application of generalized likelihood uncertainty estimation (GLUE) at different temporal scales to reduce the uncertainty level in modelled river flows. Hydrological Sciences Journal, 65 (11). 1856-1871. https://doi.org/10.1080/02626667.2020.1764961
• Afzal, Muhammad; Vavlas, Nikolaos; Ragab, Ragab. 2020 Modelling study to quantify the impact of future climate and land use changes on water resources availability at catchment scale. Journal of Water and Climate Change. https://doi.org/10.2166/wcc.2020.117
• Abdelraouf, R.E.; El-Shawadfy, M.A.; Ghoname, A.A.; Ragab, R.. 2020 Improving crop production and water productivity using a new field drip irrigation design. Plant Archives, 20 (Suppl. 1). 3553-3564.
• Marwa, M.A.; El-Shafie, A.F.; Dewedar, O.M.; Molina-Martinez, J.M.; Ragab, R.. 2020 Predicting the water requirement, soil moisture distribution, yield, water productivity of peas and impact of climate change using SALTMED model. Plant Archives, 20 (Suppl. 1). 3673-3689.
• Chauhdary, Junaid Nawaz; Bakhsh, Allah; Ragab, Ragab; Khaliq, Abdul; Engel, Bernard A.; Rizwan, Muhammad; Shahid, Muhammad Adnan; Nawaz, Qamar. 2020 Modeling corn growth and root zone salinity dynamics to improve irrigation and fertigation management under semi-arid conditions. Agricultural Water Management, 230, 105952. 12, pp. https://doi.org/10.1016/j.agwat.2019.105952
• Afzal, Muhammad; Ragab, Ragab. 2019 Drought risk under climate and land use changes: implication to water resource availability at catchment scale. Water, 11 (9), 1790. 29, pp. https://doi.org/10.3390/w11091790
• Chauhdary, Junaid Nawaz; Bakhsh, Allah; Engel, Bernard A.; Ragab, Ragab. 2019 Improving corn production by adopting efficient fertigation practices: experimental and modeling approach. Agricultural Water Management, 221. 449-461. https://doi.org/10.1016/j.agwat.2019.02.046
• Abdelraouf, R.E.; Ragab, R.. 2018 Applying partial root drying drip irrigation in the presence of organic mulching. Is that the best irrigation practice for arid regions? Field and modelling study using the saltmed model. Irrigation and Drainage, 67 (4). 491-507. https://doi.org/10.1002/ird.2249
• Abdelraouf, R.E.; Ragab, R.. 2018 Is the partial root drying irrigation method suitable for sandy soils? Field experiment and modelling using the Saltmed model. Irrigation and Drainage, 67 (4). 477-490. https://doi.org/10.1002/ird.2271
• Abdelraouf, R.E.; Ragab, R.. 2018 Effect of fertigation frequency and duration on yield and water productivity of wheat: field and modelling study using the Saltmed model. Irrigation and Drainage, 67 (3). 414-428. https://doi.org/10.1002/ird.2232
• Avellán, Tamara; Ardakanian, Reza; Perret, Sylvain R.; Ragab, Ragab; Vlotman, Willem; Zainal, Hayati; Im, Sangjun; Gany, Hafied A.. 2018 Considering resources beyond water: irrigation and drainage management in the context of the water-energy-food nexus [in special issue: Selected papers of the 2nd World Irrigation Forum] Irrigation and Drainage, 67 (1). 12-21. https://doi.org/10.1002/ird.2154
• Dastranj, Maryam; Noshadi, Masoud; Sepaskhah, Alireza; Razzaghi, Fatemeh; Ragab, Ragab. 2018 Soil salinity and tomato yield simulation using SALTMED model in drip irrigation. Journal of Irrigation and Drainage Engineering, 144 (2), 05017008. 8, pp. https://doi.org/10.1061/(ASCE)IR.1943-4774.0001243
• Abdelraouf, R.E.; Ragab, R.. 2017 The benefit of using drainage water of fish farms for irrigation: field and modelling study using the SALTMED model. Irrigation and Drainage, 66 (5). 758-772. https://doi.org/10.1002/ird.2180
• Ragab, R.; Evans, J.G. ; Battilani, A.; Solimando, D.. 2017 The Cosmic-ray Soil Moisture Observation System (Cosmos) for estimating the crop water requirement: new approach. Irrigation and Drainage, 66 (4). 456-468. https://doi.org/10.1002/ird.2152
• Ragab, R.; Evans, J.G. ; Battilani, A.; Solimando, D.. 2017 Towards accurate estimation of crop water requirement without the crop coefficient Kc: new approach using modern technologies. Irrigation and Drainage, 66 (4). 469-477. https://doi.org/10.1002/ird.2153
• Kaoutar, Filali; Abdelaziz, Hirich; Ouafae, Benlhabib; Redouane, Choukr-Allah; Ragab, Ragab. 2017 Yield and dry matter simulation using the Saltmed model for five quinoa (Chenopodium quinoa) accessions under deficit irrigation in south Morocco. Irrigation and Drainage, 66 (3). 340-350. https://doi.org/10.1002/ird.2116
• El-Shafie, A.F.; Osama, M.A.; Hussein, M.M.; El-Gindy, A.M.; Ragab, R.. 2017 Predicting soil moisture distribution, dry matter, water productivity and potato yield under a modified ‎gated pipe irrigation system: SALTMED model application using field experimental data. Agricultural Water Management, 184. 221-233. https://doi.org/10.1016/j.agwat.2016.02.002
• Afzal, M.; Battilani, A.; Solimando, D.; Ragab, R.. 2016 Improving water resources management using different irrigation strategies and water qualities: field and modelling study. Agricultural Water Management, 176. 40-54. https://doi.org/10.1016/j.agwat.2016.05.005
• Rameshwaran, Ponnambalam; Tepe, Akin; Yazar, Attila; Ragab, Ragab. 2016 Effects of drip-irrigation regimes with saline water on pepper productivity and soil salinity under greenhouse conditions. Scientia Horticulturae, 199. 114-123. https://doi.org/10.1016/j.scienta.2015.12.007
• Arslan, A.; Majid, G.A.; Abdallah, K.; Rameshwaran, P.; Ragab, R.; Singh, M.; Qadir, M.. 2016 Evaluating the productivity potential of chickpea, lentil and faba bean under saline water irrigation systems. Irrigation and Drainage, 65 (1). 19-28. https://doi.org/10.1002/ird.1912
• Hirich, Abdelaziz; Fatnassi, Hicham; Ragab, Ragab; Choukr-Allah, Redouane. 2016 Prediction of climate change impact on corn grown in the south of Morocco using the Saltmed model. Irrigation and Drainage, 65 (1). 9-18. https://doi.org/10.1002/ird.2002
• Rameshwaran, Ponnambalam; Qadir, Manzoor; Ragab, Ragab; Arslan, Awadis; Majid, Ghalia Abdul; Abdallah, Khalaf. 2016 Tolerance of faba bean, chickpea and lentil to salinity: accessions' salinity response functions. Irrigation and Drainage, 65 (1). 49-60. https://doi.org/10.1002/ird.1922
• Elmeddahi, Yamina; Mahmoudi, Hacene; Issaadi, Abderrahmane; Goosen, Mattheus F.A.; Ragab, Ragab. 2016 Evaluating the effects of climate change and variability on water resources: a case study of the Cheliff basin in Algeria. American Journal of Engineering and Applied Sciences, 9 (4). 835-845. https://doi.org/10.3844/ajeassp.2016.835.845
• Fghire, Rachid; Anaya, Fatima; Ali, Oudou Issa; Benlhabib, Ouafae; Ragab, Ragab; Wahbi, Said. 2015 Physiological and photosynthetic response of quinoa to drought stress. Chilean Journal of Agricultural Research, 75 (2). 174-183. https://doi.org/10.4067/S0718-58392015000200006
• Pulvento, C.; Lavini, A.; Riccardi, M.; d'Andria, R.; Ragab, R.. 2015 Assessing amaranth adaptability in a Mediterranean area of south Italy under different climatic scenarios. Irrigation and Drainage, 64 (1). 50-58. https://doi.org/10.1002/ird.1906
• Ragab, Ragab. 2015 Integrated management tool for water, crop, soil and N-fertilizers: the Saltmed model. Irrigation and Drainage, 64 (1). 1-12. https://doi.org/10.1002/ird.1907
• Pulvento, C.; Riccardi, M.; Lavini, A.; D'Andria, R.; Ragab, R.. 2015 Parameterization and field validation of Saltmed model for grain amaranth tested in south Italy. Irrigation and Drainage, 64 (1). 59-68. https://doi.org/10.1002/ird.1905
• Fghire, Rachid; Wahbi, Said; Anaya, Fatima; Issa Ali, Oudou; Benlhabib, Ouafae; Ragab, Ragab. 2015 Response of quinoa to different water management strategies: field experiments and SALTMED model application results. Irrigation and Drainage, 64 (1). 29-40. https://doi.org/10.1002/ird.1895
• Ragab, R.; Battilani, A.; Matovic, G.; Stikic, R.; Psarras, G.; Chartzoulakis, K.. 2015 SALTMED model as an integrated management tool for water, crop, soil and N-fertilizer water management strategies and productivity: field and simulation study. Irrigation and Drainage, 64 (1). 13-28. https://doi.org/10.1002/ird.1898
• Rameshwaran, Ponnambalam; Tepe, Akin; Yazar, Attila; Ragab, Ragab. 2015 The effect of saline irrigation water on the yield of pepper: experimental and modelling study. Irrigation and Drainage, 64. 41-49. https://doi.org/10.1002/ird.1867
• Hirich, Abdelaziz; El Omari, Halima; Jackobsen, Sven-Erik; Lamaddalena, Nicola; Hamdy, Atef; Ragab, Ragab; Jelloul, Ahmed; Choukr-Allah, Redouane. 2014 Chickpea (Cicer arietinum L.) physiological, chemical and growth responses to irrigation with saline water. Australian Journal of Crop Science, 8 (5). 646-654.
• Hirich, Abdelaziz; Ragab, Ragab; Choukr-Allah, Redouane; Rami, Abellatif. 2014 The effect of deficit irrigation with treated wastewater on sweet corn: experimental and modelling study using SALTMED model. Irrigation Science, 32 (3). 205-219. https://doi.org/10.1007/s00271-013-0422-0
• De Fraiture, Charlotte; Fayrap, Aynur; Unver, Olcay; Ragab, Ragab. 2014 Integrated water management approaches for sustainable food production. Irrigation and Drainage, 63 (2). 221-231. https://doi.org/10.1002/ird.1847
• Pulvento, C.; Riccardi, M.; Lavini, A.; D'andria, R.; Ragab, R.. 2013 SALTMED model to simulate yield and dry matter for quinoa crop and soil moisture content under different irrigation strategies in south Italy. Irrigation and Drainage, 62 (2). 229-238. https://doi.org/10.1002/ird.1727
• Silva, L.L.; Ragab, R.; Duarte, I.; Lourenco, E.; Simoes, N.; Chaves, M.M.. 2013 Calibration and validation of SALTMED model under dry and wet year conditions using chickpea field data from southern Portugal. Irrigation Science, 31 (4). 651-659. https://doi.org/10.1007/s00271-012-0341-5
• Maestre-Valero, J.F.; Ragab, R.; Martínez-Alvarez, V.; Baille, A.. 2012 Estimation of dew yield from radiative condensers by means of an energy balance model. Journal of Hydrology, 460-61. 103-109. https://doi.org/10.1016/j.jhydrol.2012.06.046
• Montenegro, Suzana; Ragab, Ragab. 2012 Impact of possible climate and land use changes in the semi arid regions: a case study from north eastern Brazil. Journal of Hydrology, 434–435. 55-68. https://doi.org/10.1016/j.jhydrol.2012.02.036
• Hirich, A.; Choukr-Allah, R.; Ragab, R.; Jacobsen, S.-E.; El youssfi, L.; El omari, H.. 2012 The SALTMED model calibration and validation using field data from Morocco. Journal of Materials and Environmental Science, 3 (2). 342-359.
• Malash, Nabeel M.; Flowers, Timothy J.; Ragab, Ragab. 2011 Plant-water relations, growth and productivity of tomato irrigated by different methods with saline and non-saline water. Irrigation and Drainage, 60 (4). 446-453. https://doi.org/10.1002/ird.606
• D’Agostino, Daniela R.; Trisorio, Giuliana; Lamaddalena, Nicola; Ragab, Ragab. 2010 Assessing the results of scenarios of climate and land use changes on the hydrology of an Italian catchment: modelling study. Hydrological Processes, 24. 2693-2704. https://doi.org/10.1002/hyp.7765
• Montenegro, A.; Ragab, R.. 2010 Hydrological response of a Brazilian semi-arid catchment to different land use and climate change scenarios: a modelling study. Hydrological Processes, 24. 2705-2723. https://doi.org/10.1002/hyp.7825
• Ragab, Ragab; Bromley, John. 2010 IHMS – Integrated Hydrological Modelling System. Part 1. The hydrological processes and general structure. Hydrological Processes, 24. 2663-2680. https://doi.org/10.1002/hyp.7681
• Ragab, Ragab; Bromley, John; Dörflinger, Gerald; Katsikides, Savvas. 2010 IHMS –Integrated Hydrological Modelling System. Part 2. Application of linked unsaturated, DiCaSM and saturated zone, MODFLOW models on Kouris and Akrotiri catchments in Cyprus. Hydrological Processes, 24. 2681-2692. https://doi.org/10.1002/hyp.7682
• Montenegro, Suzana Gico; Montenegro, Abelardo; Ragab, Ragab. 2010 Improving agricultural water management in the semi-arid region of Brazil: experimental and modelling study. Irrigation Science, 28. 301-316. https://doi.org/10.1007/s00271-009-0191-y
• Ragab, Ragab. 2010 Preface: SAFIR - Safe and high quality food production using low quality waters and improved irrigation systems and management. Agricultural Water Management, 98 (3). iv. https://doi.org/10.1016/j.agwat.2010.11.001
• Plauborg, Finn; Andersen, Mathias N.; Liu, Fulai; Ensink, Jeroen; Ragab, Ragab. 2010 Safe and high quality food production using low quality waters and improved irrigation systems and management: SAFIR. Agricultural Water Management, 98. 377-384. https://doi.org/10.1016/j.agwat.2010.05.020
• Malash, N. M.; Flowers, T. J.; Ragab, R.. 2008 Effect of irrigation methods, management and salinity of irrigation water on tomato yield, soil moisture and salinity distribution. Irrigation Science, 26 (4). 313-323. https://doi.org/10.1007/s00271-007-0095-7
• Gash, J.H C.; Rosier, P.T.W.; Ragab, R.. 2008 A note on estimating urban roof runoff with a forest evaporation model. Hydrological Processes, 22 (8). 1230-1233. https://doi.org/10.1002/hyp06683

Books:

• Choukr‐Allah, Redouane; Ragab, Ragab; Bouchaou, Lhoussaine; Barceló, Damià, eds. 2017 The Souss‐Massa river basin, Morocco. Cham, Switzerland, Springer, 355pp. (The handbook of environmental chemistry, 53).
• Choukr-Allah, Redouane; Ragab, Ragab; Rodriguez-Clemente, Rafael, eds. 2012 Integrated water resources management in the Mediterranean region: dialogue towards new strategy. Dordrecht, The Netherlands, Springer, 364pp.
• Ragab, Ragab, ed. 2010 SAFIR-Safe and high quality food production using low quality waters and improved irrigation systems management. Amsterdam, The Netherlands, Elsevier, 106pp. (Agricultural Water Management, 98 (3)).
• Ragab, Ragab; Koo-Oshima, S.. 2006 Proceedings of the international workshop on environmental consequences of irrigation with poor quality waters, held 12 September 2006, Kuala Lumpur, Malaysia. New Delhi, ICID, 183pp. (ICID Publication, 86).
• Ragab, R.. 2006 Proceedings of the international workshop on water saving practices in rice paddy cultivation, 14-15 September 2006, Kuala Lumpur, Malaysia. New Delhi / Wallingford, ICID / Centre for Ecology and Hydrology, 99pp. (ICID Publication, 85).
• Silva, L.L.; Baptista, F.J.; Meneses, J.F.; Ragab, R.. 2017 Evaluation of the SALTMED model for tomato crop production in unheated greenhouses. In: Baptista, F.J.; Meneses, J.F.; Silva, L.L., (eds.) Proceedings of the International Symposium on New Technologies and Management for Greenhouses - GreenSys2015. Leuven, Belgium, International Society for Horticultural Science, 441-446. (Acta Horticulturae, 1170).
• Ragab, R.; Choukr-Allah, R.; Nghira, A.; Hirich, A.. 2017 SALTMED model and its application on field crops, different water and field management and under current and future climate change. In: Choukr‐Allah, Redouane; Ragab, Ragab; Bouchaou, Lhoussaine; Barceló, Damià, (eds.) The Souss‐Massa river basin, Morocco. Cham, Switzerland, Springer, 227-274. (The handbook of environmental chemistry, 53).
• Ragab, Ragab. 2016 SALTMED model for field management of water, crops and N-fertilizers. In: Gheyi, Hans Raj; Dias, Nildo da Silva; Lacerda, Claudivan Feitosa de; Gomes Filho, Eneas, (eds.) Manejo da salinidade na agricultura: estudos basicos e aplicados (2nd ed.). Fortaleza, Brazil, INCTSal, 353-371.
• Ragab, Ragab. 2012 Challenges and issues on measuring, modelling and managing the water resources under changing climate and cand use. In: Choukr-Allah, Redouane; Ragab, Ragab; Rodriguez-Clemente, Rafael, (eds.) Integrated water resources management in the Mediterranean region: Dialogue towards new strategy. Dordrecht, The Netherlands, Springer, 91-107.
• Ragab, R.; Bromley, J.; D’Agostino, D.R.; Lamaddalena, N.; Trisorio Luizzi, G.; Dörflinger, G.; Katsikides, S.; Montenegro, S.; Montenegro, A.. 2012 Water resources management under possible future climate and land use changes: The application of the Integrated Hydrological Modelling System, IHMS. In: Choukr-Allah, Redouane;
• Ragab, Ragab; Rodriguez-Clemente, Rafael, (eds.) Integrated water resources management in the Mediterranean region: Dialogue towards new strategy. Dordrecht, The Netherlands, Springer, 69-90.
• Firbank, Les; Bradbury, Richard; Jenkins, Alan; Ragab, Ragab; Goulding, Keith, & others. 2011 Enclosed farmland [chapter 7]. In: UK National Ecosystem Assessment. Understanding nature's value to society. Technical Report. Cambridge, UNEP-WCMC, 197-239.
• Ragab, Ragab. 2010 Preface: Salinity management in Agriculture: the basis and applications. In: Gheyi, Hans Raj; Dias, Nildo da Silva; de Lacerda, Claudivan Feitosa, (eds.) Manejo da Salinidade na Agricultura: Estudos Basicos e Aplicados. Fortaleza, Brazil, Institute Nacional de Ciencia e Tecnologia em Salinidade, 1-3.
• Ragab, Ragab. 2010 SALTMED Model as an integrated management tool for water, crop, soil and fertilizers. In: Gheyi, Hans R.; Dias, Nildo da S.; de Lacerda, Claudivan F., (eds.) Manejo da salinidade na agricultura: Estudos basicos e aplicado. Fortaleza, Brazil, Instituto Nacional de Ciencia e Technologia em Salinidade, 320-336.

Conference Items:

• Ragab, Ragab. 2014 Challenges in irrigated and rain-fed agriculture production. [Speech] In: The Water Supply and Sanitation Technology Platform (WssTP), Brussels, Belgium, 3 Mar 2014. (Unpublished)
• Ragab, Ragab. 2013 SALTMED model and its application in managing water, crops, soils and N-fertilizers. [Invited Paper] In: Utilization and Protection of Halophytes and Salt-Affected Landscapes, Kecskemét, Hungary, 4-6 Sept 2013. (Unpublished)
• Rameshwaran, P.; Tepe, A.; Yazar, A.; Ragab, R.. 2013 SALTMED 2013 model application using greenhouse experiment data from Turkey. In: SWUP-MED Project Final Conference: Sustainable Water Use for Securing Food Production in the Mediterranean Region under Changing Climate, Agadir, Morocco, 10–15 Mar 2013. 144-149.
• Malash, N. M.; Flowers, T. J.; Ragab, R.. 2006 Effect of irrigation methods and management practices on tomato yield soil moisture and salinity distribution using saline water. In: Proceedings of the international workshop on environmental consequences of irrigation with poor quality waters, Kuala Lumpa, Malaysia, 12 September 2006. New Delhi / Wallingford, ICID-CIID / Centre for Ecology and Hydrology, 122-138.
• Ragab, R.; Koo-Oshima, S.. 2006 Preface: Environmental consequences of irrigation with poor quality waters: sustainability, management, institutional, water resource, health and social issues. In: Proceedings of the international workshop on environmental consequences of irrigation with poor quality waters, Kuala Lumpa, Malaysia, 12 September 2006. New Delhi / Wallingford, ICID-CIID / Centre for Ecology and Hydrology, 3.
• Ragab, R.; Koo-Oshima, S.. 2006 Preface: Water saving practices in rice paddy cultivation. In: Proceedings of International workshop on water saving practices in rice paddy cultivation /, Kuala Lumpur, Malaysia, 14-15 September 2006. 2.
• Hamdy, A.; Ragab, R.. 2006 Reuse of treated wastewater in irrigation: challenges and perspectives. In: Proceedings of the international workshop on environmental consequences of irrigation with poor quality waters, Kuala Lumpa, Malaysia, 12 September 2006. Centre for Ecology and Hydrology / ICID, 5-28.
• Ragab, R.. 2006 Rice cultivation: environmental issues and water saving approaches. In: Proceedings of the International workshop on water saving practices in rice paddy cultivation, Kuala Lumpur, Malaysia, 14-15 September 2006. New Delhi / Wallingford, ICID / Centre for Ecology and Hydrology, 5-9.

Reports:

• Blake, J.R.; Ragab, R.. 2014 Drought Risk and You (DRY): case study catchments – physical characteristics and functioning. Wallingford, NERC/Centre for Ecology & Hydrology, 70pp. (CEH Project no. C05074) (Unpublished)
• Cooper, David; Foster, Claire; Goodey, Richard; Hallett, Paul; Hobbs, Peter; Irvine, Brian; Kirkby, Mike; Ragab, Ragab; Rawlins, Barry; Richards, Mark; Smith, Peter; Spurgeon, Dave; Tye, Andy. 2010 Use of ‘UKCIP08 Scenarios’ to determine the potential impact of climate change on the pressures/threats to soils in England and Wales. Final Report to Defra, Project SP0571. NERC. (Defra Project Number: SP0571)
• Moreno, Jose F.; Ragab, Ragab; Morel-Seytoux, H.. 2002 Analysis, investigation and monitoring of water resources for the management of multi-purpose reservoirs 'AIMWATER' Final Report. Cemagref, 163pp. (Unpublished)

Output (Electronic):

IHMS: Integrated hydrological Modelling system  for catchment scale.  Includes unsaturated zone model, DiCaSM, groundwater flow model, 
 MODFLOW (saturated zone model) & Seawater  intrusion model, SWI.          
 Accounting for the impact of water management and possible future climate and  land use changes on water flows from the surface to the sea.
Hydrological Processes, 2010. Volume 24 issue 19. The IHMS can be downloaded at:https://icid-ciid.org/inner_page/41   

Ragab, Ragab; Bromley, John. 2010 IHMS – Integrated Hydrological Modelling System. Part 1. The hydrological processes and general structure. Hydrological Processes, 24. 2663-2680. https://doi.org/10.1002/hyp.7681

SALTMED 2019. SALTMED model as an integrated management tool for  management of water, crop, soil and N-fertilizers. The model is a free download at http://icid-ciid.org/inner_page/41

Ragab, Ragab. 2015 Integrated management tool for water, crop, soil and N-fertilizers: the SALTMED model. Irrigation and Drainage, 64 (1). 1-12. https://doi.org/10.1002/ird.1907