The effect of temporal resolution of input rainfall data in hydrological modelling at urban catchment

M. F. Chow; H. Haris; Y. X. Leong

doi:10.1063/5.0044479

The effect of temporal resolution of input rainfall data in hydrological modelling at urban catchment

M. F. Chow, H. Haris, Y. X. Leong

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other

1 Citation (Scopus)

Abstract

The process of urbanization with increasing population and development has drastically disrupted the water balance of natural catchment. The variation in hydrological responses due to rainfall and land use changes increases the difficulty on rainfall-runoff modelling. In addition, large uncertainties in rainfall data can be a significant source of error in flood simulation. Thus, the objective of this study is to compare the temporal resolution effects between 15 min and 1-hour rainfall data on hydrological modelling at urban catchment. 15 min and 1-hour resolution rainfall data was collected from eight rainfall stations at Penchala River catchment. The temporal resolution effects of rainfall data on hydrological modelling were assessed by comparing 15 min resolution and 1-hour resolution rainfall data using HEC-HMS model. The modelling results showed that average peak discharge percentage errors for 1-hour rainfall interval is 15.79 %, whereas 4.33% for 15 minutes' rainfall interval. The fine resolution rainfall data has proved that it had improved the performance of hydrological modelling using HEC-HMS model. For model calibration, the mean percentage errors for peak discharge and runoff volume were found to be 4.33% and 20.88%, respectively. Meanwhile, the mean percentage errors for peak discharge and runoff volume for model validation were found to be 16.25% and 16.51%, respectively.

Original language	English
Title of host publication	Proceedings of Green Design and Manufacture 2020
Editors	Shayfull Zamree Abd Rahim, Mohd Nasir Mat Saad, Mohd Mustafa Al Bakri Abdullah, Muhammad Faheem Mohd Tahir, Nurul Aida Mohd Mortar
Publisher	American Institute of Physics
ISBN (Electronic)	9780735440913
DOIs	https://doi.org/10.1063/5.0044479
Publication status	Published - 2021
Externally published	Yes
Event	International Conference on Green Design and Manufacture 2020 - Arau, Malaysia Duration: 23 Jul 2020 → 24 Jul 2020 Conference number: 6th https://aip.scitation.org/toc/apc/2339/1 (Proceedings)

Publication series

Name	AIP Conference Proceedings
Volume	2339
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	International Conference on Green Design and Manufacture 2020
Abbreviated title	IConGDM 2020
Country/Territory	Malaysia
City	Arau
Period	23/07/20 → 24/07/20
Internet address	https://aip.scitation.org/toc/apc/2339/1 (Proceedings)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1063/5.0044479

Cite this

Chow, M. F., Haris, H., & Leong, Y. X. (2021). The effect of temporal resolution of input rainfall data in hydrological modelling at urban catchment. In S. Z. A. Rahim, M. N. M. Saad, M. M. A. B. Abdullah, M. F. M. Tahir, & N. A. M. Mortar (Eds.), Proceedings of Green Design and Manufacture 2020 Article 020074 (AIP Conference Proceedings; Vol. 2339). American Institute of Physics. https://doi.org/10.1063/5.0044479

Chow, M. F. ; Haris, H. ; Leong, Y. X. / The effect of temporal resolution of input rainfall data in hydrological modelling at urban catchment. Proceedings of Green Design and Manufacture 2020. editor / Shayfull Zamree Abd Rahim ; Mohd Nasir Mat Saad ; Mohd Mustafa Al Bakri Abdullah ; Muhammad Faheem Mohd Tahir ; Nurul Aida Mohd Mortar. American Institute of Physics, 2021. (AIP Conference Proceedings).

@inproceedings{2952addba63043ab8d51dbb4e1229776,

title = "The effect of temporal resolution of input rainfall data in hydrological modelling at urban catchment",

abstract = "The process of urbanization with increasing population and development has drastically disrupted the water balance of natural catchment. The variation in hydrological responses due to rainfall and land use changes increases the difficulty on rainfall-runoff modelling. In addition, large uncertainties in rainfall data can be a significant source of error in flood simulation. Thus, the objective of this study is to compare the temporal resolution effects between 15 min and 1-hour rainfall data on hydrological modelling at urban catchment. 15 min and 1-hour resolution rainfall data was collected from eight rainfall stations at Penchala River catchment. The temporal resolution effects of rainfall data on hydrological modelling were assessed by comparing 15 min resolution and 1-hour resolution rainfall data using HEC-HMS model. The modelling results showed that average peak discharge percentage errors for 1-hour rainfall interval is 15.79 %, whereas 4.33% for 15 minutes' rainfall interval. The fine resolution rainfall data has proved that it had improved the performance of hydrological modelling using HEC-HMS model. For model calibration, the mean percentage errors for peak discharge and runoff volume were found to be 4.33% and 20.88%, respectively. Meanwhile, the mean percentage errors for peak discharge and runoff volume for model validation were found to be 16.25% and 16.51%, respectively.",

author = "Chow, {M. F.} and H. Haris and Leong, {Y. X.}",

note = "Funding Information: The authors would like to thank the BOLD2025 Research Grant provided by Tenaga Nasional Berhad (TNB) (Project No. 10436494/B/2019035) and supports by research management center (iRMC) of Universiti Tenaga Nasional (UNITEN). Publisher Copyright: {\textcopyright} 2021 American Institute of Physics Inc.. All rights reserved. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.; International Conference on Green Design and Manufacture 2020, IConGDM 2020 ; Conference date: 23-07-2020 Through 24-07-2020",

year = "2021",

doi = "10.1063/5.0044479",

language = "English",

series = "AIP Conference Proceedings",

publisher = "American Institute of Physics",

editor = "Rahim, {Shayfull Zamree Abd} and Saad, {Mohd Nasir Mat} and Abdullah, {Mohd Mustafa Al Bakri} and Tahir, {Muhammad Faheem Mohd} and Mortar, {Nurul Aida Mohd}",

booktitle = "Proceedings of Green Design and Manufacture 2020",

address = "United States of America",

url = "https://aip.scitation.org/toc/apc/2339/1",

}

Chow, MF, Haris, H & Leong, YX 2021, The effect of temporal resolution of input rainfall data in hydrological modelling at urban catchment. in SZA Rahim, MNM Saad, MMAB Abdullah, MFM Tahir & NAM Mortar (eds), Proceedings of Green Design and Manufacture 2020., 020074, AIP Conference Proceedings, vol. 2339, American Institute of Physics, International Conference on Green Design and Manufacture 2020, Arau, Malaysia, 23/07/20. https://doi.org/10.1063/5.0044479

The effect of temporal resolution of input rainfall data in hydrological modelling at urban catchment. / Chow, M. F.; Haris, H.; Leong, Y. X.
Proceedings of Green Design and Manufacture 2020. ed. / Shayfull Zamree Abd Rahim; Mohd Nasir Mat Saad; Mohd Mustafa Al Bakri Abdullah; Muhammad Faheem Mohd Tahir; Nurul Aida Mohd Mortar. American Institute of Physics, 2021. 020074 (AIP Conference Proceedings; Vol. 2339).

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other

TY - GEN

T1 - The effect of temporal resolution of input rainfall data in hydrological modelling at urban catchment

AU - Chow, M. F.

AU - Haris, H.

AU - Leong, Y. X.

N1 - Conference code: 6th

PY - 2021

Y1 - 2021

N2 - The process of urbanization with increasing population and development has drastically disrupted the water balance of natural catchment. The variation in hydrological responses due to rainfall and land use changes increases the difficulty on rainfall-runoff modelling. In addition, large uncertainties in rainfall data can be a significant source of error in flood simulation. Thus, the objective of this study is to compare the temporal resolution effects between 15 min and 1-hour rainfall data on hydrological modelling at urban catchment. 15 min and 1-hour resolution rainfall data was collected from eight rainfall stations at Penchala River catchment. The temporal resolution effects of rainfall data on hydrological modelling were assessed by comparing 15 min resolution and 1-hour resolution rainfall data using HEC-HMS model. The modelling results showed that average peak discharge percentage errors for 1-hour rainfall interval is 15.79 %, whereas 4.33% for 15 minutes' rainfall interval. The fine resolution rainfall data has proved that it had improved the performance of hydrological modelling using HEC-HMS model. For model calibration, the mean percentage errors for peak discharge and runoff volume were found to be 4.33% and 20.88%, respectively. Meanwhile, the mean percentage errors for peak discharge and runoff volume for model validation were found to be 16.25% and 16.51%, respectively.

AB - The process of urbanization with increasing population and development has drastically disrupted the water balance of natural catchment. The variation in hydrological responses due to rainfall and land use changes increases the difficulty on rainfall-runoff modelling. In addition, large uncertainties in rainfall data can be a significant source of error in flood simulation. Thus, the objective of this study is to compare the temporal resolution effects between 15 min and 1-hour rainfall data on hydrological modelling at urban catchment. 15 min and 1-hour resolution rainfall data was collected from eight rainfall stations at Penchala River catchment. The temporal resolution effects of rainfall data on hydrological modelling were assessed by comparing 15 min resolution and 1-hour resolution rainfall data using HEC-HMS model. The modelling results showed that average peak discharge percentage errors for 1-hour rainfall interval is 15.79 %, whereas 4.33% for 15 minutes' rainfall interval. The fine resolution rainfall data has proved that it had improved the performance of hydrological modelling using HEC-HMS model. For model calibration, the mean percentage errors for peak discharge and runoff volume were found to be 4.33% and 20.88%, respectively. Meanwhile, the mean percentage errors for peak discharge and runoff volume for model validation were found to be 16.25% and 16.51%, respectively.

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U2 - 10.1063/5.0044479

DO - 10.1063/5.0044479

M3 - Conference Paper

AN - SCOPUS:85105609257

T3 - AIP Conference Proceedings

BT - Proceedings of Green Design and Manufacture 2020

A2 - Rahim, Shayfull Zamree Abd

A2 - Saad, Mohd Nasir Mat

A2 - Abdullah, Mohd Mustafa Al Bakri

A2 - Tahir, Muhammad Faheem Mohd

A2 - Mortar, Nurul Aida Mohd

PB - American Institute of Physics

T2 - International Conference on Green Design and Manufacture 2020

Y2 - 23 July 2020 through 24 July 2020

ER -

The effect of temporal resolution of input rainfall data in hydrological modelling at urban catchment

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