Hydrology and Earth System Sciences
Hydrology and Earth System Sciences
HESS
Articles | Volume 30, issue 1
Articles | Volume 30, issue 1
https://doi.org/10.5194/hess-30-45-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-30-45-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 30, issue 1
Research article
 | 
09 Jan 2026
Research article |  | 09 Jan 2026

Elevation dependent spatial interpolation of hourly rainfall for accurate flood inundation modelling

Chi Nguyen, Jai Vaze, Cherry May R. Mateo, Michael F. Hutchinson, and Jin Teng

Related authors

Comparison of BARRA and ERA5 in replicating mean and extreme precipitation over Australia
Kevin K. W. Cheung, Fei Ji, Nidhi Nishant, Jin Teng, James Bennett, and De Li Liu
Hydrol. Earth Syst. Sci., 29, 3527–3543, https://doi.org/10.5194/hess-29-3527-2025,https://doi.org/10.5194/hess-29-3527-2025, 2025
Short summary

Cited articles

Acharya, S. C., Nathan, R., Wang, Q. J., Su, C.-H., and Eizenberg, N.: An evaluation of daily precipitation from a regional atmospheric reanalysis over Australia, Hydrol. Earth Syst. Sci., 23, 3387–3403, https://doi.org/10.5194/hess-23-3387-2019, 2019. a, b, c
Acharya, S. C., Nathan, R., Wang, Q. J., and Su, C.-H.: Temporal disaggregation of daily rainfall measurements using regional reanalysis for hydrological applications, Journal of Hydrology, 610, 127867, https://doi.org/10.1016/j.jhydrol.2022.127867, 2022. a, b, c, d, e
Australian Bureau of Meteorology: Australian Gridded Climate Data (AGCD) v2.0.0 Snapshot (1900-01-01 to 2020-05-31), https://doi.org/10.25914/6009600786063, 2020. a
Breinl, K. and Di Baldassarre, G.: Space-time disaggregation of precipitation and temperature across different climates and spatial scales, Journal of Hydrology: Regional Studies, 21, 126–146, https://doi.org/10.1016/j.ejrh.2018.12.002, 2019. a, b
Brighenti, T. M., Bonumá, N. B., Srinivasan, R., and Chaffe, P. L. B.: Simulating sub-daily hydrological process with SWAT: a review, Hydrological Sciences Journal, 64, 1415–1423, https://doi.org/10.1080/02626667.2019.1642477, 2019. a
More articles (44)
Download
Short summary
The availability of high-resolution rainfall data is limited. This study presents a method to generate hourly and 1 km gridded rainfall data for detailed hydrodynamic flood modelling purposes, using point measurements and thin-plate spline interpolation. The analysis shows that the proposed dataset outperforms other gridded datasets in representing spatial distributions and daily and hourly variations of rainfall. The data is suitable for any study where high-resolution rainfall data is needed.
Read more
Share