HEC-RAS and GIS Based Flood Hazard Analysis: A Case Study of Muş Basin

Abstract

Urbanisation, uncontrolled land use, infrastructure and engineering practices that are inconsistent with basin characteristics, and settlement planning that does not consider flood risk alter natural drainage systems, thereby obstructing surface runoff and increasing flood hazards. Due to topography and climatic conditions that intensify flow processes, Eastern Anatolia is, after the Aegean and Eastern Black Sea regions, one of the regions where flood events are frequently observed. The Muş Basin, located in the Eastern Anatolia Region and covering an area of 3.482 km², is one of Turkey's plains most frequently affected by floods. In this study, the flood threat in the Muş Basin was simulated under various discharge scenarios using measured flow data from previous years, a 5-m-resolution Digital Terrain Model (DTM), and the HEC-RAS 1B modelling system. The results indicate that flood depth and flow velocity exhibit significant spatial variability across the basin. In particular, high flood risk has been identified in the vicinity of the settlements of Sungu, Yeroluk, Mercimekkale, and Muratgören, and these findings are spatially consistent with flood events recorded in previous years

Keywords

• HEC-RAS
• GIS
• Flood
• Muş
• Türkiye

Supporting Institution

Izmir Bakırçay University

Ethical Statement

On behalf of all authors, the corresponding author states that there is no conflict of interest.

Thanks

This study was produced from the Master's thesis carried out in Izmir Bakırçay University, Department of Geography. We would like to thank the General Directorate of Electrical Works, the Disaster and Emergency Management Presidency (AFAD), the General Directorate of Cartography and and Mustafa Utlu for their technical support and important data sets.

HEC-RAS ve GIS Tabanlı Taşkın Tehlikesi Analizi: Muş Havzası Örneği

Abstract

Kentleşme, kontrolsüz arazi kullanımı, havza özellikleriyle uyumsuz şekilde tasarlanan altyapı ve mühendislik uygulamaları ile taşkın riskini dikkate almadan tasarlanan yerleşim planlaması, doğal drenaj sistemlerini değiştirerek yüzeysel akışı engellemekte bu da taşkın tehlikesini artırmaktadır. Topografya ve iklim koşullarının akış süreçlerini yoğunlaştırması nedeniyle, taşkın olaylarının Ege ve Doğu Karadeniz’den sonra sık görüldüğü bölgelerden biri Doğu Anadolu’dur. Doğu Anadolu Bölgesi'nde yer alan 3.482 km² büyüklüğündeki Muş Havzası, Türkiye’de en çok taşkın gözlemlenen ovalardan biridir. Bu çalışmada, Muş Havzası'ndaki taşkın tehdidi; geçmiş yıllara ait ölçülmüş akım verileri, 5 m çözünürlüklü Dijital Arazi Modeli (DTM) ve HEC-RAS 1B modelleme sistemi kullanılarak çeşitli deşarj senaryoları kapsamında simüle edilmiştir. Sonuçlar, taşkın derinliği ve hızının havza genelinde önemli mekânsal farklılıklar gösterdiğini ortaya koymaktadır. Özellikle Sungu, Yeroluk, Mercimekkale ve Muratgören yerleşimleri çevresinde kritik taşkın riskinin yüksek olduğu belirlenmiş olup, bu bulgular geçmiş yıllarda meydana gelen taşkın olaylarıyla uyum göstermektedir.

Keywords

• HEC-RAS
• GBS
• Taşkın
• Muş
• Türkiye

Supporting Institution

Izmir Bakırçay Üniversitesi

Ethical Statement

Tüm yazarlar adına, ilgili yazar çıkar çatışması olmadığını beyan eder.

Thanks

Bu çalışma, İzmir Bakırçay Üniversitesi Coğrafya Bölümü'nde yapılan yüksek lisans tezinden üretilmiştir. Teknik destek ve önemli veri setleri için Elektrik İşleri Genel Müdürlüğü, Afet ve Acil Durum Yönetimi Başkanlığı (AFAD), Haritacılık Genel Müdürlüğü ve Mustafa Utlu'ya teşekkür ederiz.

References

1. AFAD (2020). Türkiye Afet Müdahale Planı. Afet ve Acil Durum Yönetimi Başkanlığı Yayını. Ankara.
2. AFAD (2021). İl Afet Risk Azaltma Planı (IRAP). Muş Valiliği, İl Afet ve Acil Durum Müdürlüğü, Muş, Türkiye.
3. Akan, A. O., & Iyer, S. S. (2021). Open channel hydraulics. Butterworth-Heinemann, CRC Press.
4. Alaghmand, S., bin Abdullah, R., Abustan, I., & Vosoogh, B. (2010). GIS-based river flood hazard mapping in urban area (a case study in Kayu Ara River Basin, Malaysia). International Journal of Engineering and Technology, 2(6), 488-500. https://doi.org/10.7763/IJET.2010.V2.172
5. Al-Hussein, A. A., Khan, S., Ncibi, K., Hamdi, N., & Hamed, Y. (2022). Flood analysis using HEC-RAS and HEC-HMS: a case study of Khazir River (Middle East—Northern Iraq). Water, 14(22), 3779. https://doi.org/10.3390/w14223779
6. Akbaş, A., Görüm, T., & Özdemir, H. (2025). Türkiye’de taşkınların FlooDOT tabanlı incelenmesi ve farklı veri kaynaklarının mekânsal karşılaştırılması. Turkish Journal of Civil Engineering, 36(6).
7. Andreadis, K. M., Wing, O. E. J., Colven, E., Gleason, C. J., Bates, P. D., & Brown, C. M. (2022). Urbanizing the floodplain: global changes of imperviousness in flood-prone areas. Environmental Research Letters, 17(10), 104024. https://doi.org/10.1088/1748-9326/ac9288
8. Basnet, K., & Acharya, D. (2019). Flood Analysis at Ramghat, Pokhara, Nepal Using HEC-RAS. Technical Journal, 1(1), 41-53.

9. Baştuğ, C. (1976). Bitlis napının stratigrafisi ve Güneydoğu Anadolu sütur zonunun evrimi. Yeryuvarı ve İnsan, 1(3), 55-61.
10. Blöschl, G., Hall, J., Parajka, J., Perdigão, R.A., Merz, B., Arheimer, B., Aronica, G.T., Bilibashi, A., Bonacci, O., Borga, M., & Čanjevac, I. (2017). Changing climate shifts timing of European floods. Science, 357(6351), pp.588-590. https://doi.org/10.1126/science.aan2506
11. Cao, H., Zhang, H., Wang, C., & Zhang, B. (2019). Operational flood detection using Sentinel-1 SAR data over large areas. Water, 11(4), 786. https://doi.org/10.3390/w11040786
12. Ceribasi, G., & Ceyhunlu, A. I. (2021). Generation of 1D and 2D flood maps of Sakarya river passing through Geyve district of Sakarya city in Turkey. Natural Hazards, 105(1), 631-642. https://doi.org/10.1007/s11069-020-04327-8
13. Chaulagain, D., Ram Rimal, P., Ngando, S. N., Nsafon, B. E. K., Suh, D., & Huh, J.-S. (2023). Flood susceptibility mapping of Kathmandu metropolitan city using GIS-based multi-criteria decision analysis. Ecological Indicators, 154, 110653. https://doi.org/10.1016/j.ecolind.2023.110653
14. Chow, V.T. (1959). Open-channel hydraulics: New York, McGraw-Hill, 680 p.
15. Costache, R., Pham, Q.B., Sharifi, E., Linh, N.T.T., Abba, S.I., Vojtek, M., Vojteková, J., Nhi, P.T.T. & Khoi, D.N. (2019). Flash-flood susceptibility assessment using multi-criteria decision making and machine learning supported by remote sensing and GIS techniques. Remote Sensing, 12(1), 106. https://doi.org/10.3390/rs12010106
16. Demir, G., & Kaya, A. (2020). Türkiye’de sel afetlerinin mekânsal dağılımı ve risk analizi. Türk Coğrafya Dergisi, 75, 15–30.
17. De Moel, H. D., van Alphen, E. J., Aerts, J. C. (2009). Depth distribution s in Europe–methods, availability and use. Natural Hazards and Earth System Sciences, 9(2), 289-301. https://doi.org/10.5194/nhess-9-289-2009
18. Dottori, F., Salamon, P., Bianchi, A., Alfieri, L., Hirpa, F. A., & Feyen, L. (2016). Development and evaluation of a framework for global flood hazard mapping. Advances in Water Resources, 94, 87-102. https://doi.org/10.1016/j.advwatres.2016.05.002
19. Dölek, İ. (2013). Muş'ta yaşanan sel ve taşkinlara neden olan doğal faktörlerin analizi. Marmara Coğrafya Dergisi, (28), 408-422.
20. Dölek, İ. (2015). Sungu beldesi ve yakin çevresinde (Muş) sel ve taşkina duyarli alanlarin belirlenmesi. Marmara Coğrafya Dergisi, (31), 258-280.
21. Dölek, İ. (2016). Muş ilinde doğal tehlike kaynağı olarak sel ve taşkınlar, sel ve taşkına duyarlı alanların analizi, Muş ili için doğal tehlike kaynakları, 81-129, https://doi.org/10.13140/RG.2.1.3354.2000
22. Dölek, İ., & Avci, V. (2024). Muş ilinin sel ve taşkin duyarlilik haritalarinin oluşturulması. The Journal of Academic Social Science, 44(44), 190-204.
23. Durak, M., & Cürebal, İ. (2025). HEC-RAS tabanlı 2 boyutlu taşkın tehlike çalışması: Bahadınlı ve Karadere (Burhaniye – Balıkesir). Jeomorfolojik Araştırmalar Dergisi(15), 126-149. https://doi.org/10.46453/jader.1777585
24. Fick, S.E., & Hijmans, R.J. (2017). WorldClim 2: new 1km spatial resolution climate surfaces for global land areas. International Journal of Climatology, 37 (12): 4302-4315. https://doi.org/10.1002/joc.5086
25. Fijko, R., & Zeleňáková, M. (2016). The HEC RAS model of regulated stream for purposes of flood risk reduction. Journal of Civil Engineering, 11(1), 59-70.
26. Ghasemlounia, R., & Utlu, M. (2021). Flood prioritization of basins based on geomorphometric properties using principal component analysis, morphometric analysis and Redvan’s priority methods: A case study of Harşit River basin. Journal of Hydrology, 603, 127061. https://doi.org/10.1016/j.jhydrol.2021.127061
27. Göncüoğlu, M.C., & Turhan, N. (1985). Bitlis metamorfik kuşağının orta bölümünün temel jeolojisi, MTA Raporu, Rapor No: 7707 (yayımlanmamış), Ankara.
28. Guven, D. S., Yenigun, K., Isinkaralar, O., & Isinkaralar, K. (2025). Modeling flood hazard impacts using GIS-based HEC-RAS technique towards climate risk in Şanlıurfa, Türkiye. Natural Hazards, 121(3), 3657-3675. https://doi.org/10.1007/s11069-024-06977-w
29. Haltas, I., Yildirim, E., Oztas, F., & Demir, I. (2021). A comprehensive flood event specification and inventory: 1930–2020 Turkey case study. International Journal of Disaster Risk Reduction, 56, 102086. https://doi.org/10.1016/j.ijdrr.2021.102086
30. Hall, J., Arheimer, B., Borga, M., Brázdil, R., Claps, P., Kiss, A., Kjeldsen, T.R., Kriaučiūnienė, J., Kundzewicz, Z.W., Lang, M., & Llasat, M.C. (2014). Understanding flood regime changes in Europe: a state-of-the-art assessment. Hydrology and Earth System Sciences, 18(7), 2735-2772. https://doi.org/10.5194/hess-18-2735-2014
31. Hallegatte, S., Green, C., Nicholls, R. J., & Corfee-Morlot, J. (2013). Future flood losses in major coastal cities. Nature Climate Change, 3(9), 802–806. https://doi.org/10.1038/nclimate1979
32. Hirabayashi, Y., Mahendran, R., Koirala, S., Konoshima, L., Yamazaki, D., Watanabe, S., Kim, H., & Kanae, S., (2013). Global flood risk under climate change. Nature climate change, 3(9), pp.816-821. https://doi.org/10.1038/nclimate1911
33. Islam, M. T., & Meng, Q. (2022). An exploratory study of Sentinel-1 SAR for rapid urban flood mapping on Google Earth Engine. International Journal of Applied Earth Observation and Geoinformation, 113, 103002. https://doi.org/10.1016/j.jag.2022.103002
34. İcaga, Y., Tas, E., & Kilit, M. (2016). Flood inundation mapping by GIS and a hydraulic model (HEC RAS): A case study of Akarcay Bolvadin subbasin, in Turkey. Acta Geobalcanica, 2(2), 111-118.
35. Jain, S.C. (2000). Open-Channel Flow, John Wiley & Sons. INC., New York, ISBN: 978-0-471-35641-7
36. Jibhakate, S. M., Timbadiya, P. V., & Patel, P. L. (2023). Flood hazard assessment for the coastal urban floodplain using 1D/2D coupled hydrodynamic model. Natural Hazards, 116(2), 1557-1590. https://doi.org/10.1007/s11069-022-05731-y
37. Jongman, B., Ward, P. J., & Aerts, J. C. (2012). Global exposure to river and coastal flooding: Long term trends and changes. Global Environmental Change, 22(4), 823-835. https://doi.org/10.1016/j.gloenvcha.2012.07.004 Karakuş, E. (2024). Türkiye’de İklim Değişikliği Bağlamında Taşkın Afetlerinin Bölgesel Dağılımı. İklim ve Afet Araştırmaları Dergisi, 2(1), 45–62.
38. Koç, G., & Thieken, A. H. (2018). The relevance of flood hazards and impacts in Turkey: What can be learned from different disaster loss databases? Natural Hazards, 91, 375-408. https://doi.org/10.1007/s11069-017-3132-8
39. Kömüşcü, A. Ü., & Çelik, S. (2013). Analysis of the Marmara flood in Turkey, 7–10 September 2009: an assessment from hydrometeorological perspective. Natural Hazards, 66(2), 781-808. https://doi.org/10.1007/s11069-012-0518-2
40. Kömüşçü, A. Ü., Erkan, A., & Çelik, S. (1998). Analysis of meteorological and terrain features leading to the Izmir flash flood, 3-4 November 1995. Natural Hazards, 18(1), 1–25. https://doi.org/10.1023/A:1008061614781
41. Kurtman, F., & Akkuş, M.F. (1971). Doğu Anadolu’daki ara basenler ve bunların petrol olanakları. MTA Dergisi, 77, 1-10.
42. Kundzewicz, Z.W., Kanae, S., Seneviratne, S.I., Handmer, J., Nicholls, N., Peduzzi, P., Mechler, R., Bouwer, L.M., Arnell, N., Mach, K. & Muir-Wood, R. (2014). Flood risk and climate change: global and regional perspectives. Hydrological Sciences Journal, 59(1), 1-28. https://doi.org/10.1080/02626667.2013.857411
43. Lavell, A., Oppenheimer, M., Diop, C., Hess, J., Lempert, R., Li, J. & Myeong, S. (2012). Managing the risks of extreme events and disasters to advance climate change adaptation. A special report of working groups I and II of the intergovernmental panel on climate change (IPCC), 3,.25-64.
44. Mani, P., Chatterjee, C., & Kumar, R. (2014). Flood hazard assessment with multiparameter approach derived from coupled 1D and 2D hydrodynamic flow model. Natural Hazards, 70(2), 1553-1574. https://doi.org/10.1007/s11069-013-0889-8
45. MGM (2021). Türkiye'de Gözlenen Aşırı Hava Olayları Raporu 2021. Meteoroloji Genel Müdürlüğü Yayını, Ankara. MHRP (2011). Murat Havzası Rehabilitasyon Projesi Fizibilite Raporu, Türkiye Cumhuriyeti Orman ve Su İşleri Bakanlığı, Ankara.
46. Namara, W. G., Damisse, T. A., & Tufa, F. G. (2022). Application of HEC-RAS and HEC-GeoRAS model for flood inundation mapping, the case of Awash bello flood plain, upper Awash River Basin, oromiya regional state, Ethiopia. Modeling Earth Systems and Environment, 8(2), 1449-1460. https://doi.org/10.1007/s40808-021-01167-x
47. Ogras, S., & Onen, F. (2020). Flood Analysis with HEC‐RAS: A Case Study of Tigris River. Advances in Civil Engineering, 2020(1), 6131982. https://doi.org/10.1155/2020/6131982
48. Patel, D. P., Ramirez, J. A., Srivastava, P. K., Bray, M., & Han, D. (2017). Assessment of flood inundation mapping of Surat city by coupled 1D/2D hydrodynamic modeling: a case application of the new HEC-RAS 5. Natural Hazards, 89(1), 93-130. https://doi.org/10.1007/s11069-017-2956-6
49. Peel, M. C., Finlayson, B. L., & McMahon, T. A. (2007). Updated World map of the Köppen-Geiger climate classification. Hydrology and Earth System Sciences Discussions, 4(2), 439-47. https://doi.org/10.5194/hess-11-1633-2007
50. Peker, İ. B., Gülbaz, S., Demir, V., Orhan, O., & Beden, N. (2024). Integration of HEC-RAS and HEC-HMS with GIS in flood modeling and flood hazard mapping. Sustainability, 16(3), 1226. https://doi.org/10.3390/su16031226
51. Paprotny, D., Morales-Nápoles, O., Vousdoukas, M. I., Jonkman, S. N., & Nikulin, G. (2019). Accuracy of pan-European coastal depth distribution ping. Journal of Flood Risk Management, 12(2), 1–16. https://doi.org/10.1111/jfr3.12484
52. Quirogaa, V. M., Kurea, S., Udoa, K., & Manoa, A. (2016). Application of 2D numerical simulation for the analysis of the February 2014 Bolivian Amazonia flood: Application of the new HEC-RAS version 5. Ribagua, 3(1), 25-33. https://doi.org/10.1016/j.riba.2015.12.001
53. Rentschler, J., Avner, P., Marconcini, M., Su, R., Strano, E., Vousdoukas, M., & Hallegatte, S. (2023). Global evidence of rapid urban growth in flood zones since 1985. Nature, 622(7981), 87-92. https://doi.org/10.1038/s41586-023-06468-9
54. Robertson, A.H. (2002). Overview of the genesis and emplacement of Mesozoic ophiolites in the Eastern Mediterranean Tethyan region. Lithos, 65(1-2), 1-67. https://doi.org/10.1016/S0024-4937(02)00160-0
55. Schumann, G., Matgen, P., Hoffmann, L., Hostache, R., Pappenberger, F., & Pfister, L. (2007). Deriving distributed roughness values from satellite radar data for flood inundation modelling. Journal of Hydrology, 344(1-2), 96-111. https://doi.org/10.1016/j.jhydrol.2007.06.027
56. Sturm, T. W. (2001). Open channel hydraulics (Vol. 1, p. 1). New York: McGraw-Hill.
57. Tarhan, N. (1991). Hınıs-Varto-Karlıova (Erzurum-Muş-Bingöl) dolayındaki Neojen volkanitlerinin jeolojisi ve petrolojisi. Maden Tetkik ve Arama Dergisi, 113, 45-60.
58. Taylan, E. D., & Damçayırı, D. (2024). 2D hydrodynamic model for flood analysis in Kinikli Stream Basin (Tekirdağ, Türkiye). Iranian Journal of Science and Technology, Transactions of Civil Engineering, 48(4), 2691-2707. https://doi.org/10.1007/s40996-023-01332-9
59. Tin, D., Cheng, L., Le, D., Hata, R., & Ciottone, G. (2024). Natural disasters: A comprehensive study using EMDAT database 1995–2022. Public Health, 226, 255-260. https://doi.org/10.1016/j.puhe.2023.11.026
60. TÜİK (2021). Çevresel İstatistikler: Meteorolojik Afet Verileri 2021. Türkiye İstatistik Kurumu, Ankara.
61. Türkeş, M., & Tatlı, H. (2011). Use of the spectral clustering to determine coherent precipitation regions in Turkey for the period 1929–2007. International Journal of Climatology, 31(14), 20552067. https://doi.org/10.1002/joc.2212
62. Twele, A., Cao, W., Plank, S., & Martinis, S. (2016). Sentinel-1-based flood mapping: a fully automated processing chain. International Journal of Remote Sensing, 37(13), 2990-3004. https://doi.org/10.1080/01431161.2016.1192701
63. Uddin, K., Matin, M. A., & Meyer, F. J. (2019). Operational flood mapping using multi-temporal Sentinel-1 SAR images: A case study from Bangladesh. Remote Sensing, 11(13), 1581. https://doi.org/10.3390/rs11131581
64. Utlu, M. (2019). Farklı çözünürlüklü veri kaynaklarına bağlı taşkın tehlike analizi: Biga Çayı Havzası örneği. [Doktora tezi, İstanbul Üniversitesi]. (Yayınlanmamış), Ulusal Tez Merkezi.
65. Utlu, M., & Özdemir, H. (2020). How much spatial resolution do we need to model a local flood event? Benchmark testing based on UAV data from Biga River (Turkey). Arabian Journal of Geosciences, 13(24), 1293. https://doi.org/10.1007/s12517-020-06282-3
66. Utlu, M., Şimşek, M., & Öztürk, M. Z. (2020). 1D taşkın modellemeleri açısından Topo Dem ve Alos Dsm verilerinin karşılaştırılması: Alara Çayı Örneği. Ege Coğrafya Dergisi, 29(2), 161-177.
67. Utlu, M., & Ghasemlounia, R. (2021). Flood prioritization watersheds of the Aras River, based on geomorphometric properties: Case study Iğdır Province. Jeomorfolojik Araştırmalar Dergisi, (6), 21-40.
68. USACE (2016). Hydrologic Engineering Center, HEC-RAS, River Analysis System Hydraulic Reference Manual. US Army Corps of Engineers, Davis, CA.
69. USACE (2025). PL 84-99 Advaced Measures, Post-Wildfire Hazard Assessment, 2025 Eaton Fire, County of Los Angeles, California, May 2025, US Army Corps of Engineers, Los Angeles District, Draft Report, 435p.
70. Uzelli, T., Şener, M. F., Dölek, İ., Baba, A., Sözbilir, H., & Dirik, R. K. (2021). Structural controls and hydrogeochemical properties of geothermal fields in the Vartoregion, East Anatolia. Turkish Journal of Earth Sciences, 30(9), 1076-1095. https://doi.org/10.3906/yer-2105-18
71. Ünal, A. (1970). Muş bölgesi 1: 25 000 ölçekli Erzurum J 47 c4, Muş K 47 b4, c1, c2 paftalarının detay petrol etüdü, MTA Raporu, Rapor No: 4754 (yayımlanmamış), Ankara.
72. Soytürk, N., & Baştuğ, C. (1973). Kozluk-Baykan yöresi jeoloji raporu, TPAO Raporu, Rapor No: 795 (yayınlanmamış), Ankara.
73. Spor, P., Paşa, Y., & Doğan, E. (2025). Evaluation of simulation results of hec-ras coupled 1d/2d and 2d modeling approaches through scenario-based analysis. Water, 17(8), 1163. https://doi.org/10.3390/w17081163
74. Öcal, A. (2019). Natural Disasters in Turkey: Social and economic perspective. International Journal of Disaster Risk Management, 1(1), 51–61.
75. Önol, B., & Unal, Y. S. (2014). Assessment of climate change simulations over climate zones of Turkey. Regional Environmental Change, 14(5), 1921–1935. https://doi.org/10.1007/s10113-014-0598-6
76. Özdemir, T. (2024). Erzurum ili örneğinde taşkın tehlikesi ve kırılganlık analizi. Doğu Anadolu Coğrafya Dergisi, 30(1), 25–40.
77. Özdemir, H., & Akbas, A. (2025). Evaluating the capability of UAV-Derived DEMs for flood hazard analysis. Physical Geography, 46(3), 175-195. https://doi.org/10.1080/02723646.2024.2371988
78. Öztürk, M.Z., Çetinkaya, G., & Aydın, S. (2017). Köppen-Geiger iklim sınıflandırmasına göre Türkiye’nin iklim tipleri. Coğrafya Dergisi, 35, 17-27.
79. Paiva, R.C., Collischonn, W., & Tucci, C.E. (2011). Large scale hydrologic and hydrodynamic modeling using limited data and a GIS based approach. Journal of Hydrology, 406(3-4), 170-181. https://doi.org/10.1016/j.jhydrol.2011.06.019
80. Wallace, R.E. (1968). Earthquake of August 19, 1966, Varto area, eastern Turkey. Bulletin of the Seismological Society of America, 58(1), 11-45. https://doi.org/10.1785/BSSA0580010011
81. Winsemius, H.C., Aerts, J.C., Van Beek, L.P., Bierkens, M.F., Bouwman, A., Jongman, B., Kwadijk, J.C., Ligtvoet, W., Lucas, P.L., Van Vuuren, D.P. & Ward, P.J. (2016). Global drivers of future river flood risk. Nature Climate Change, 6(4), pp.381-385. https://doi.org/10.1038/nclimate2893
82. Wood, E.F., Roundy, J.K., Troy, T.J., Van Beek, L.P.H., Bierkens, M.F., Blyth, E., de Roo, A., Döll, P., Ek, M., Famiglietti, J. & Gochis, D. (2011). Hyperresolution global land surface modeling: Meeting a grand challenge for monitoring Earth's terrestrial water. Water Resources Research, 47(5). https://doi.org/10.1029/2010WR010090
83. Yakupoğlu, T., & Erdoğanlı, K. (2023). Whole Rock and Clay Mıneralogy of Early Mıocene Sedımentary Rocks Outcroppıng In The Northeast Of Korkut (Muş-Türkiye). Eskişehir Technical University Journal of Science and Technology A-Applied Sciences and Engineering, 24, 17-32.
84. Yalcin, E. (2019). Two‐dimensional hydrodynamic modelling for urban flood risk assessment using unmanned aerial vehicle imagery: A case study of Kirsehir, Turkey. Journal of flood risk management, 12, e12499. https://doi.org/10.1111/jfr3.12499
85. Yalcin, E. (2020). Assessing the impact of topography and land cover data resolutions on two-dimensional HEC-RAS hydrodynamic model simulations for urban flood hazard analysis. Natural Hazards, 101(3), 995-1017. https://doi.org/10.1007/s11069-020-03856-6
86. Yılmaz, M., & Akbulut, M. (2019). Doğu Anadolu Bölgesi’nde sel olaylarinin coğrafi dağilimi üzerine bir inceleme. Afet ve Risk Dergisi, 5(2), 120–135.
87. Yüksek, Ö., Kankal, M., & Üçüncü, O. (2013). Assessment of big floods in the Eastern Black Sea Basin of Turkey. Environmental Monitoring and Assessment, 185(1), 797–814. https://doi.org/10.1007/s10661-012-2592-3