Koray Kamil Yılmaz

E-mail

yilmazk@metu.edu.tr

Department

Department of Geological Engineering

ORCID

0000-0002-6244-8826

Scopus Author ID

56568516600

Web of Science Researcher ID

A-6053-2010

Paired Satellite and NWP Precipitation for Global Flood Forecasting Huang, Zhijun; Wu, Huan; Gu, Guojun; Li, Xiaomeng; Nanding, Nergui; Adler, Robert F.; Yılmaz, Koray Kamil; Alfieri, Lorenzo; Chen, Sirong (2023-12-01) Precipitation data are known to be the key driver of hydrological simulations. Hence, reliable quantitative precipitation estimates and forecasts are vital for accurate hydrological forecasting. Satellite-based precipitati...
The role of satellite information in forecasting, modeling, and mapping the 2019 Mozambique flood Adler, Robert; Gu, Guojun; Zhou, Naijun; Wu, Huan; Matgen, Patrick; Galantowicz, John; Schumann, Guy; Yılmaz, Koray Kamil (2022-08-01) The application and value of the Global Flood Monitoring System (GFMS) andvarious remote-sensing-based flood products are examined in the context ofthe severe flood event in Mozambique associated with Cyclone Idai in March...
Production of a high-resolution improved radar precipitation estimation map using gauge adjustment bias correction methods Yousefi, Kaveh Patakchi; Yılmaz, Mustafa Tuğrul; Ozturk, Kurtulus; Yücel, İsmail; Yılmaz, Koray Kamil (null; 2020-05-08) This study evaluates relative performances of different statistical algorithms to enhance radar-based quantitative precipitation estimation (QPE) accuracy using rain gauge network data. Initial investigations are implement...
Performance evaluation of satellite- and model-based precipitation products over varying climate and complex topography Amjad, Muhammad; Yılmaz, Mustafa Tuğrul; Yücel, İsmail; Yılmaz, Koray Kamil (Elsevier BV, 2020-05-01) Accuracy assessment of precipitation retrievals is a pre-requisite for many hydrological studies as it helps to understand the source and the magnitude of the uncertainty in hydrological response variables, particularly ov...
A multi-technique approach to determine temporal and spatial variability of groundwater-stream water exchange Koruk, Kasimcan; Yılmaz, Koray Kamil; Akyürek, Sevda Zuhal; Binley, Andrew (Wiley, 2020-04-03) Characterizing the spatio-temporal distribution of groundwater-surface water (GW-SW) exchange fluxes is of paramount importance in understanding catchment behavior. A wide range of field-based techniques are available for ...
Evaluation of GPM-era Global Satellite Precipitation Products over Multiple Complex Terrain Regions Derin, Yagmur; Anagnostou, Emmanouil; Berne, Alexis; Borga, Marco; Boudevillain, Brice; Buytaert, Wouter; Chang, Che-Hao; Chen, Haonan; Delrieu, Guy; Hsu, Yung Chia; Lavado-Casimiro, Waldo; Manz, Bastian; Moges, Semu; Nikolopoulos, Efthymios I.; Sahlu, Dejene; Salerno, Franco; Rodriguez-Sanchez, Juan-Pablo; Vergara, Humberto J.; Yılmaz, Koray Kamil (MDPI AG, 2019-12-02) The great success of the Tropical Rainfall Measuring Mission (TRMM) and its successor Global Precipitation Measurement (GPM) has accelerated the development of global high-resolution satellite-based precipitation products ...
Evaluation of gauge adjustment methods in improving radar precipitation estimation quality over Antalya radar in Turkey. Yousufi, Kaveh Patakchi; Yılmaz, Mustafa Tuğrul; Ozturk, Kurtulus; Yücel, İsmail; Yılmaz, Koray Kamil (null; 2019-11-28) Radar-based precipitation estimates rely on algorithms that utilize observations of backscattered waves sent from the radar. By utilizing these backscattered observations and different reflectivity-rainfall (Z-R) equations...
TMPA VE ECMWF yağiş verilerinin yer gözlem verileriyle doğrulanmasi Amjad, Muhammad; Düzenli, Eren; Afshar, Mehdi; Bulut, Burak; Senocak, Ali Ulvi Galip; Yılmaz, Koray Kamil; Yılmaz, Mustafa Tuğrul; Yücel, İsmail (null; 2019-10-15)
Twenty-three unsolved problems in hydrology (UPH) - a community perspective Bloeschl, Gunter; et. al. (Informa UK Limited, 2019-07-01) This paper is the outcome of a community initiative to identify major unsolved scientific problems in hydrology motivated by a need for stronger harmonisation of research efforts. The procedure involved a public consultati...
Uncertainty assessment of satellite- and model-based precipitation products over complex terrain of Turkey Amjad, Muhammad; Yılmaz, Mustafa Tuğrul; Yücel, İsmail; Yılmaz, Koray Kamil (2019-04-07) This study evaluates satellite-based (TMPA 3B42V7 and GPM IMERGv5) and model-based (ECMWF ERAInterim) precipitation products by using ground-based gauge stations as reference over Turkey, characterized by complex topograph...

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