Remapping annual precipitation in mountainous areas based on vegetation patterns: a case study in the Nu River basin

Zhou, X., Ni, G.-H., Shen, C. and Sun, T. ORCID: https://orcid.org/0000-0002-2486-6146 (2017) Remapping annual precipitation in mountainous areas based on vegetation patterns: a case study in the Nu River basin. Hydrology and Earth System Sciences, 21 (2). pp. 999-1015. ISSN 1027-5606 doi: 10.5194/hess-21-999-2017

Abstract/Summary

Accurate high-resolution estimates of precipitation are vital to improving the understanding of basin-scale hydrology in mountainous areas. The traditional interpolation methods or satellite-based remote sensing products are known to have limitations in capturing the spatial variability of precipitation in mountainous areas. In this study, we develop a fusion framework to improve the annual precipitation estimation in mountainous areas by jointly utilizing the satellite-based precipitation, gauge measured precipitation, and vegetation index. The development consists of vegetation data merging, vegetation response establishment, and precipitation remapping. The framework is then applied to the mountainous areas of the Nu River basin for precipitation estimation. The results demonstrate the reliability of the framework in reproducing the high-resolution precipitation regime and capturing its high spatial variability in the Nu River basin. In addition, the framework can significantly reduce the errors in precipitation estimates as compared with the inverse distance weighted (IDW) method and the TRMM (Tropical Rainfall Measuring Mission) precipitation product

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/71104
Identification Number/DOI	10.5194/hess-21-999-2017
Refereed	Yes
Divisions	Science > School of Mathematical, Physical and Computational Sciences > Department of Meteorology
Publisher	Copernicus
Download/View statistics	View download statistics for this item