ID:
publications-1601
Type:
PEER REVIEWED ARTICLE
Year:
2017
Authors:
Haileyesus Belay Lakew , Semu Ayalew Moges , Dereje Hailu Asfaw
Title:
Hydrological Evaluation of Satellite and Reanalysis Precipitation Products in the Upper Blue Nile Basin: A Case Study of Gilgel Abbay
Venue/Journal:
DOI:
10.3390/hydrology4030039
Research type:
AI & Machine Learning
Water System:
Water Distribution Networks
Technical Focus:
Abstract:
The aim of this study is to assess the performance of various global precipitation products for water resources application in the Upper Blue Nile basin, Ethiopia. Three precipitation products of gauge-adjusted (corrected) CMORPH, (TRMM) TMPA 3B42v7 and ECMWF reanalysis products are evaluated. A Coupled Routing and Excess Storage (CREST) distributed hydrological model is calibrated and used for the evaluation. The model is calibrated for 2000–2005 and validated for 2006–2011 periods using daily observed rainfall and discharge datasets. The results indicate the precipitation products consistently provide a better performance of runoff estimation when they are independently calibrated than simulation modes of the products. We conclude as long as each product is calibrated independently, global precipitation products can provide enough information for water resource management in data-scarce regions of upper Blue Nile Basin. Further analysis is underway to understand the response characteristics of the precipitation products at larger spatio-temporal scales.
Link with Projects:
603608
Link with Tools:
Related policies:
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