Articles | Volume 24, issue 7
https://doi.org/10.5194/hess-24-3603-2020
https://doi.org/10.5194/hess-24-3603-2020
Research article
 | 
17 Jul 2020
Research article |  | 17 Jul 2020

Hydrological evaluation of open-access precipitation data using SWAT at multiple temporal and spatial scales

Jianzhuang Pang, Huilan Zhang, Quanxi Xu, Yujie Wang, Yunqi Wang, Ouyang Zhang, and Jiaxin Hao

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Cited articles

Abbaspour, K., Vaghefi, S., and Srinivasan, R.: A Guideline for Successful Calibration and Uncertainty Analysis for Soil and Water Assessment: A Review of Papers from the 2016 International SWAT Conference, Water, 10, 6, https://doi.org/10.3390/w10010006, 2017. 
Ajaaj, A. A., Mishra, A. K., and Khan, A. A.: Evaluation of Satellite and Gauge-Based Precipitation Products through Hydrologic Simulation in Tigris River Basin under Data-Scarce Environment, J. Hydrol. Eng., 24, 05018033, https://doi.org/10.1061/(asce)he.1943-5584.0001737, 2019. 
Alijanian, M., Rakhshandehroo, G. R., Mishra, A. K., and Dehghani, M.: Evaluation of satellite rainfall climatology using CMORPH, PERSIANN-CDR, PERSIANN, TRMM, MSWEP over Iran, Int. J. Climatol., 37, 4896–4914, https://doi.org/10.1002/joc.5131, 2017. 
Arnold, J. G. and Fohrer, N.: SWAT2000 – Current capabilities and research opportunities in applied watershed modelling, Hydrol. Process., 19, 563–572, https://doi.org/10.1002/hyp.5611, 2005. 
Arnold, J. G., Srinivasan, R., Muttiah, R. S., and Williams, J. R.: Large area hudrologic modeling and assessment part I: model development1, J. Am. Water. Resour. Assoc., 34, 73–89, https://doi.org/10.1111/j.1752-1688.1998.tb05961.x, 1988. 
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Short summary
As frequently used precipitation products, Gauge, CPC, and CHIRPS presented different behaviors in describing precipitation on different spatial and temporal scales, yet these dissimilarities could be concealed in hydrological modeling by parameter calibration and validation. Parameter adjustment in hydrologic modeling, however, would yield different water balance components and thus alter hydrologic mechanisms, demonstrating the complexity in physically describing natural hydrologic processes.