Imperial College London
Alternate

DrChristianOnof

Faculty of Engineering, Department of Civil and Environmental Engineering

Reader in Stochastic Environmental Systems
 
 
 
//

Contact

 

c.onof

 
 
//

Location

 

410Skempton BuildingSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{OchoaRodriguez:2019:10.1029/2018wr023332,
author = {OchoaRodriguez, S and Wang, L and Willems, P and Onof, C},
doi = {10.1029/2018wr023332},
journal = {Water Resources Research},
pages = {6356--6391},
title = {A review of radarrain gauge data merging methods and their potential for urban hydrological applications},
url = {http://dx.doi.org/10.1029/2018wr023332},
volume = {55},
year = {2019}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Radarrain gauge merging techniques have been widely used to improve the applicability of radar and rain gauge rainfall estimates by combining their advantages, while partially overcoming their individual weaknesses. Despite significant research in this area, guidance on the suitability of and factors affecting merging techniques at the fine spatialtemporal resolutions required for urban hydrological applications is still insufficient. In this paper, an indepth review of radarrain gauge merging techniques is conducted, with a focus on their potential for urban hydrological applications. An overview is first given of existing merging techniques and an applicationoriented categorization is proposed: (1) radar bias adjustment methods, (2) rain gauge interpolation methods using radar spatial association as additional information, and (3) radarrain gauge integration methods. A detailed review is given of studies focusing on the evaluation and intercomparison of merging methods, based upon which the most widely used and best performing techniques from each category are identified. These are mean field bias adjustment, kriging with external drift, and Bayesian merging. Climatological, operational, and methodological factors affecting merging performance are then reviewed and their relevance for urban applications discussed. Based on this review, conclusions on merging potential for urban applications are drawn and research gaps are identified, which should be addressed to provide further guidance on the use of merging techniques for urban hydrological applications.
AU  - OchoaRodriguez,S
AU  - Wang,L
AU  - Willems,P
AU  - Onof,C
DO  - 10.1029/2018wr023332
EP  - 6391
PY  - 2019///
SN  - 0043-1397
SP  - 6356
TI  - A review of radarrain gauge data merging methods and their potential for urban hydrological applications
T2  - Water Resources Research
UR  - http://dx.doi.org/10.1029/2018wr023332
UR  - https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018WR023332
UR  - http://hdl.handle.net/10044/1/73098
VL  - 55
ER  -
Download