Evaluation of Satellite Precipitation Products and Their Potential Influence on Hydrological Modeling over the Ganzi River Basin of the Tibetan Plateau
Joint Authors
Lü, Haishen
Zhu, Yonghua
Su, Jianbin
Alazzy, Alaa Alden
Chen, Rensheng
Ali, Abubaker B.
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-23, 23 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-03-30
Country of Publication
Egypt
No. of Pages
23
Main Subjects
Abstract EN
In the last few years, satellite-based precipitation datasets are believed to be a potential source for forcing inputs in driving hydrological models, which are important especially in complex terrain areas or ungauged basins where ground gauges are generally sparse or nonexistent.
This study aims to comprehensively evaluate the satellite precipitation products, CMORPH-CRT, PERSIANN-CDR, 3B42RT, and 3B42 against gauge-based datasets and to infer their relative potential impacts on hydrological processes simulation using the HEC-HMS model in the Ganzi River Basin (GRB) of the Tibetan Plateau.
Results from a quantitative statistical comparison reveal that, at annual and seasonal scales, both CMORPH-CRT and 3B42 perform better than PERSIANN-CDR and 3B42RT.
The CMORPH-CRT and 3B42 tend to underestimate values at the medium and high precipitation intensities ranges, whereas the opposite tendency is found for PERSIANN-CDR and 3B42RT.
Overall, 3B42 exhibits the best performance for streamflow simulations over GRB and even outperforms simulation driven by gauge data during the validation period.
PERSIANN-CDR shows the worst overall performance.
After recalibrating with input-specific precipitation data, the performance of all satellite precipitation forced simulations is substantially improved, except for PERSIANN-CDR.
Furthermore, 3B42 is more suitable to drive hydrological models and can be a potential alternative source of sparse data in Tibetan Plateau basins.
American Psychological Association (APA)
Alazzy, Alaa Alden& Lü, Haishen& Chen, Rensheng& Ali, Abubaker B.& Zhu, Yonghua& Su, Jianbin. 2017. Evaluation of Satellite Precipitation Products and Their Potential Influence on Hydrological Modeling over the Ganzi River Basin of the Tibetan Plateau. Advances in Meteorology،Vol. 2017, no. 2017, pp.1-23.
https://search.emarefa.net/detail/BIM-1122629
Modern Language Association (MLA)
Alazzy, Alaa Alden…[et al.]. Evaluation of Satellite Precipitation Products and Their Potential Influence on Hydrological Modeling over the Ganzi River Basin of the Tibetan Plateau. Advances in Meteorology No. 2017 (2017), pp.1-23.
https://search.emarefa.net/detail/BIM-1122629
American Medical Association (AMA)
Alazzy, Alaa Alden& Lü, Haishen& Chen, Rensheng& Ali, Abubaker B.& Zhu, Yonghua& Su, Jianbin. Evaluation of Satellite Precipitation Products and Their Potential Influence on Hydrological Modeling over the Ganzi River Basin of the Tibetan Plateau. Advances in Meteorology. 2017. Vol. 2017, no. 2017, pp.1-23.
https://search.emarefa.net/detail/BIM-1122629
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1122629