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Hydro-NEXRAD: An Updated Overview and Metadata Analysis
Book chapter

Hydro-NEXRAD: An Updated Overview and Metadata Analysis

Radosław Goska, Witold F Krajewski, James A Smith, Bong Chul Seo, Mary Lynn Beack, Matthias Steiner, Charles Gunyon, Anton Kruger and Piotr Domaszczynski
World Environmental and Water Resources Congress 2008, pp.1-10
2008
DOI: 10.1061/40976(316)393

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Abstract

Hydro-NEXRAD is a prototype system that allows hydrologists to obtain user-specified rainfall data for their research. These data are based on observations collected by the national network of WSR-88D radars, known as NEXRAD. Users interact with Hydro-NEXRAD through a web-based interface that has map-based components for spatial navigation, calendar- and time series plot components for temporal navigation and a menu-based component for selection of processing options. Through the interface, users browse the Hydro-NEXRAD metadata and select data of interest. As the system is approaching the point of being fully operational, the authors and a group of test users have evaluated several aspects of the system. Metadata remains very important for the system functionality. Radar-based, basin-based and point (for selected set of rain gauge locations) metadata serve multiple purposes: 1) enable users to efficiently search for subsets of data (SQL query, visual inspection), 2) provide information on quality of the collected data archive (missing or corrupt data), 3) and have a scientific value (basin-based metadata has a potential to be used as a precipitation input to hydrologic models). The authors provide an updated overview of the Hydro-NEXRAD system. Additionally, the authors present the complete set of Hydro-NEXRAD metadata and discuss their possible applications.
 Rainfall Data analysis Hydrologic data

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