Umut Okkan

1.3k total citations
52 papers, 1.0k citations indexed

About

Umut Okkan is a scholar working on Water Science and Technology, Global and Planetary Change and Environmental Engineering. According to data from OpenAlex, Umut Okkan has authored 52 papers receiving a total of 1.0k indexed citations (citations by other indexed papers that have themselves been cited), including 29 papers in Water Science and Technology, 29 papers in Global and Planetary Change and 26 papers in Environmental Engineering. Recurrent topics in Umut Okkan's work include Hydrology and Watershed Management Studies (28 papers), Hydrological Forecasting Using AI (24 papers) and Climate variability and models (15 papers). Umut Okkan is often cited by papers focused on Hydrology and Watershed Management Studies (28 papers), Hydrological Forecasting Using AI (24 papers) and Climate variability and models (15 papers). Umut Okkan collaborates with scholars based in Türkiye, India and United States. Umut Okkan's co-authors include Okan Fıstıkoğlu, Nurcihan Ceryan, Ayhan Kesimal, Sinan Nacar, Pijush Samui, Murat Kankal, Erol İleri, Aslan Deniz Karaoğlan, Alpaslan Atmanlı and Nadir Yılmaz and has published in prestigious journals such as SHILAP Revista de lepidopterología, Journal of Hydrology and International Journal of Climatology.

In The Last Decade

Umut Okkan

48 papers receiving 1.0k citations

Peers

Umut Okkan

GPC

WST

Mehmet İshak Yüce Türkiye

S. Srinivasulu India

Marina Campolo Italy

Tao Du China

Haiyuan Yao China

Michael Pfister Switzerland

Inhye Park South Korea

Sanghyun Kim South Korea

Enrico Napoli Italy

Hyeon-Jun Kim South Korea

Mehmet İshak Yüce Türkiye

Umut Okkan

333 ×0.7

GPC

201 ×0.5

223 ×0.6

WST

89 ×0.4

55 ×0.3

Citations per year, relative to Umut Okkan Umut Okkan (= 1×) peers Mehmet İshak Yüce

Countries citing papers authored by Umut Okkan

Since Specialization

Citations

This map shows the geographic impact of Umut Okkan's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Umut Okkan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Umut Okkan more than expected).

Fields of papers citing papers by Umut Okkan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Umut Okkan. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Umut Okkan. The network helps show where Umut Okkan may publish in the future.

Co-authorship network of co-authors of Umut Okkan

This figure shows the co-authorship network connecting the top 25 collaborators of Umut Okkan. A scholar is included among the top collaborators of Umut Okkan based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Umut Okkan. Umut Okkan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Fıstıkoğlu, Okan, et al.. (2025). Exploring the Potential of Multi-Hydrological Model Weighting Schemes to Reduce Uncertainty in Runoff Projections. Water. 17(20). 2919–2919.

Nacar, Sinan, et al.. (2024). Trends and amount changes of temperature and precipitation under future projections in high–low groups and intra-period for the Eastern Black Sea, the Wettest Basin in Türkiye. Natural Hazards. 120(11). 9833–9866. 1 indexed citations

Okkan, Umut, et al.. (2023). Investigating adaptive hedging policies for reservoir operation under climate change impacts. Journal of Hydrology. 619. 129286–129286. 27 indexed citations

Okkan, Umut, et al.. (2022). DİNAMİK SU BÜTÇESİ MODELİNE DESTEK VEKTÖR REGRESYONU ENTEGRASYONU. SHILAP Revista de lepidopterología. 237–250.

Nacar, Sinan, et al.. (2022). Farklı İklim Değişikliği Senaryoları için Doğu Karadeniz Bölgesindeki Meteorolojik Kuraklıkların Eğilim Analizi. Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi. 12(2). 843–856. 1 indexed citations

Okkan, Umut, et al.. (2020). Locally tuned hybridized particle swarm optimization for the calibration of the nonlinear Muskingum flood routing model. Journal of Water and Climate Change. 11(S1). 343–358. 20 indexed citations

Okkan, Umut, et al.. (2019). Temperature and precipitation projections under Ar4 scenarios: The case of Kucuk Menderes Basin, Turkey. 3 indexed citations

Okkan, Umut, et al.. (2019). Sensitivity Analysis For Control Parameters Of Hybrid And Standard PSO Algorithms: Application Via A Rainfall-runoff Model Calibration. 336–341. 1 indexed citations

Okkan, Umut, et al.. (2018). MATLAB ile Levenberg-Marquardt algoritması tabanlı YSA uygulaması: Aylık yağış-akış modellemesi. DergiPark (Istanbul University). 2 indexed citations

10.

Okkan, Umut, et al.. (2016). Modeling the Effects of Climate Change on Ikizcetepeler Inflows: 2015-2030 Projection. DergiPark (Istanbul University). 1 indexed citations

11.

Okkan, Umut, et al.. (2016). İklim Değişikliğinin İkizcetepeler Barajı Akımlarına Etkilerinin Modellenmesi: 2015-2030 Projeksiyonu. Teknik Dergi. 27(2). 7379–7401. 1 indexed citations

12.

Yılmaz, Nadir, et al.. (2016). Predicting the Engine Performance and Exhaust Emissions of a Diesel Engine Fueled With Hazelnut Oil Methyl Ester: The Performance Comparison of Response Surface Methodology and LSSVM. Journal of Energy Resources Technology. 138(5). 59 indexed citations

13.

Okkan, Umut, et al.. (2016). Downscaling of monthly precipitation using CMIP5 climate models operated under RCPs. Meteorological Applications. 23(3). 514–528. 52 indexed citations

14.

Okkan, Umut, et al.. (2014). Relevance vector machines approach for long-term flow prediction. Neural Computing and Applications. 25(6). 1393–1405. 11 indexed citations

15.

Okkan, Umut & Okan Fıstıkoğlu. (2013). Using ECHAM5 General Circulation Model and Hydrological Lumped Model GR2M to Assess Impacts of Climate Change on Runoff. 25–36. 1 indexed citations

16.

Okkan, Umut, et al.. (2012). Radyal Tabanlı Yapay Sinir Ağları ile Kemer Barajı Aylık Akımlarının Modellenmesi. DergiPark (Istanbul University). 2 indexed citations

17.

Ceryan, Nurcihan, Umut Okkan, & Ayhan Kesimal. (2012). Prediction of unconfined compressive strength of carbonate rocks using artificial neural networks. Environmental Earth Sciences. 68(3). 807–819. 164 indexed citations

18.

Okkan, Umut, et al.. (2011). Reservoir Inflow modeling with artificial neural networks: the case of Kemer Dam in Turkey. Fresenius environmental bulletin. 20(12). 3110–3119. 5 indexed citations

19.

Okkan, Umut. (2011). Application of Levenberg-Marquardt Optimization Algorithm Based Multilayer Neural Networks for Hydrological Time Series Modeling. An International Journal of Optimization and Control Theories & Applications (IJOCTA). 1(1). 3 indexed citations

20.

Okkan, Umut, et al.. (2010). YİĞİTLER ÇAYI GÜNLÜK AKIMLARININ YAPAY SİNİR AĞLARI VE REGRESYON ANALİZİ İLE MODELLENMESİ. DergiPark (Istanbul University). 33–48. 2 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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