Abstract
The Hydro-NEXRAD merging algorithms include two options: (1) data-based merging; and (2) product-based merging. Data-based merging algorithm takes volume scan reflectivity data from all radars involved through preprocessing algorithm that performs volume data quality control, interpolates data to synchronize temporal scale between individual radars, and finally combines data onto a common geographic grid. Reflectivity values for a given location are assigned by a weighting function with respect to the distance from the radar. This single reflectivity field is then converted to rainfall amounts using a user-requested standard approach. In product-based merging algorithm reflectivity data from multiple radars are all converted to rainfall using the same, user-specified algorithm. These products are then combined into the final one using a weighting function that expresses the uncertainty of estimated rainfall amounts. © 2008 ASCE.
Recommended Citation
W. F. Krajewski et al., "Multiple Radar Data Merging In Hydro-NEXRAD," World Environmental and Water Resources Congress 2008: Ahupua'a - Proceedings of the World Environmental and Water Resources Congress 2008, vol. 316, American Society of Civil Engineers, Dec 2008.
The definitive version is available at https://doi.org/10.1061/40976(316)388
Department(s)
Civil, Architectural and Environmental Engineering
Keywords and Phrases
Radar; Rainfall; Uncertainty principles
International Standard Book Number (ISBN)
978-078440976-3
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2023 American Society of Civil Engineers, All rights reserved.
Publication Date
01 Dec 2008
