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Kiyoumars Roushangar
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Journal Articles

Analysis of spatiotemporal variations of drought and its correlations with remote sensing-based indices via wavelet analysis and clustering methods

Open Access
Roghayeh Ghasempour, Kiyoumars Roushangar, V. S. Ozgur Kirca, Mehmet Cüneyd Demirel
Hydrology Research (2022) 53 (1): 175–192.
DOI: https://doi.org/10.2166/nh.2021.104
Date Online: 10 December 2021
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View articletitled, Analysis of spatiotemporal variations of drought and its correlations with remote sensing-based indices via wavelet analysis and clustering methods View PDF for article titled, Analysis of spatiotemporal variations of drought and its correlations with remote sensing-based indices via wavelet analysis and clustering methods
Journal Articles

Application of Z-numbers to teleconnection modeling between monthly precipitation and large scale sea surface temperature

Open Access
Hessam Najafi, Vahid Nourani, Elnaz Sharghi, Kiyoumars Roushangar, Dominika Dąbrowska
Hydrology Research (2022) 53 (1): 1–13.
DOI: https://doi.org/10.2166/nh.2021.025
Date Online: 23 November 2021
FIGURES
View articletitled, Application of Z-numbers to teleconnection modeling between monthly precipitation and large scale sea surface temperature View PDF for article titled, Application of Z-numbers to teleconnection modeling between monthly precipitation and large scale sea surface temperature
Includes: Supplementary data
Journal Articles

Hybrid point and interval prediction approaches for drought modeling using ground-based and remote sensing data

Open Access
Kiyoumars Roushangar, Roghayeh Ghasempour, V. S. Ozgur Kirca, Mehmet Cüneyd Demirel
Hydrology Research (2021) 52 (6): 1469–1489.
DOI: https://doi.org/10.2166/nh.2021.028
Date Online: 18 June 2021
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View articletitled, Hybrid point and interval prediction approaches for drought modeling using ground-based and remote sensing data View PDF for article titled, Hybrid point and interval prediction approaches for drought modeling using ground-based and remote sensing data
Journal Articles

Evaluation of spatial–temporal characteristics of precipitation using discrete maximal overlap wavelet transform and spatial clustering tools

Open Access
Kiyoumars Roushangar, Mohsen Moghaddas, Roghayeh Ghasempour, Farhad Alizadeh
Hydrology Research (2021) 52 (2): 414–430.
DOI: https://doi.org/10.2166/nh.2021.141
Date Online: 08 March 2021
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View articletitled, Evaluation of spatial–temporal characteristics of precipitation using discrete maximal overlap wavelet transform and spatial clustering tools View PDF for article titled, Evaluation of spatial–temporal characteristics of precipitation using discrete maximal overlap wavelet transform and spatial clustering tools
Journal Articles

Corrigendum to ‘A multiscale time-space approach to analyze and categorize the precipitation fluctuation based on the wavelet transform and information theory concept’ [Hydrology Research 49 (3), 724–743. https://doi.org/10.2166/nh.2018.143 ]

Free
Kiyoumars Roushangar, Vahid Nourani, Farhad Alizadeh
Hydrology Research (2019) 50 (1): 416.
DOI: https://doi.org/10.2166/nh.2018.209
Date Online: 30 August 2018
View articletitled, Corrigendum to ‘A multiscale time-space approach to analyze and categorize the precipitation fluctuation based on the wavelet transform and information theory concept’ [Hydrology Research 49 (3), 724–743. https://doi.org/10.2166/nh.2018.143 ] View PDF for article titled, Corrigendum to ‘A multiscale time-space approach to analyze and categorize the precipitation fluctuation based on the wavelet transform and information theory concept’ [Hydrology Research 49 (3), 724–743. https://doi.org/10.2166/nh.2018.143 ]
Journal Articles

A multiscale time-space approach to analyze and categorize the precipitation fluctuation based on the wavelet transform and information theory concept

Free
Kiyoumars Roushangar, Vahid Nourani, Farhad Alizadeh
Hydrology Research (2018) 49 (3): 724–743.
DOI: https://doi.org/10.2166/nh.2018.143
Date Online: 12 February 2018
FIGURES | View All (12)
View articletitled, A multiscale time-space approach to analyze and categorize the precipitation fluctuation based on the wavelet transform and information theory concept View PDF for article titled, A multiscale time-space approach to analyze and categorize the precipitation fluctuation based on the wavelet transform and information theory concept
Journal Articles

Explicit prediction of expanding channels hydraulic jump characteristics using gene expression programming approach

Free
Kiyoumars Roushangar, Roghayeh Ghasempour
Hydrology Research (2018) 49 (3): 815–830.
DOI: https://doi.org/10.2166/nh.2017.262
Date Online: 11 August 2017
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View articletitled, Explicit prediction of expanding channels hydraulic jump characteristics using gene expression programming approach View PDF for article titled, Explicit prediction of expanding channels hydraulic jump characteristics using gene expression programming approach
Journal Articles

Determining discharge coefficient of labyrinth and arced labyrinth weirs using support vector machine

Free
Kiyoumars Roushangar, Mohammad Taghi Alami, Jalal Shiri, Mahdi Majedi Asl
Hydrology Research (2018) 49 (3): 924–938.
DOI: https://doi.org/10.2166/nh.2017.214
Date Online: 03 March 2017
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View articletitled, Determining discharge coefficient of labyrinth and arced labyrinth weirs using support vector machine View PDF for article titled, Determining discharge coefficient of labyrinth and arced labyrinth weirs using support vector machine