Abstract
This article presents the data collected and analyzed using the University of Iowa's X-band polarimetric (XPOL) radars that were part of the spring 2013 hydrology-oriented Iowa Flood Studies (IFloodS) field campaign, sponsored by NASA's Global Precipitation Measurement (GPM) Ground Validation (GV) program. The four mobile radars have full scanning capabilities that provide quantitative estimation of the rainfall at high temporal and spatial resolutions over experimental watersheds. IFloodS was the first extensive test of the XPOL radars, and the XPOL radars demonstrated their field worthiness during this campaign with 46 days of nearly uninterrupted, remotely monitored, and controlled operations. This paper presents detailed post campaign analyses of the high-resolution, research-quality data that the XPOL radars collected. The XPOL dual-polarimetric products and rainfall are compared with data from other instruments for selected diverse meteorological events at high spatiotemporal resolutions from unprecedentedly unique and vast data generated during IFloodS operations. The XPOL data exhibit a detailed, complex structure of precipitation viewed at multiple range resolutions (75 and 30m). The inter- XPOL comparisons within an overlapping scanned domain demonstrate consistency across different XPOL units. The XPOLs employed a series of heterogeneous scans and obtained estimates of the meteorological echoes up to a range oversampling of 7.5m. A finer-resolution (30m) algorithm is described to correct the polarimetric estimates for attenuation at the X band and obtain agreement of attenuation-corrected products with disdrometers and NASA S-band polarimetric (NPOL) radar. The paper includes hardware characterization of Iowa XPOL radars conducted prior to the deployment in IFloodS following the GPM calibration protocol.
Recommended Citation
K. V. Mishra and W. F. Krajewski and R. Goska and D. Ceynar and B. C. Seo and A. Kruger and J. J. Niemeier and M. B. Galvez and M. Thurai and V. N. Bringi and L. Tolstoy and P. A. Kucera and W. A. Petersen and J. Grazioli, "Deployment And Performance Analyses Of High-resolution Iowa XPOL Radar System During The NASA IFloodS Campaign," Journal of Hydrometeorology, vol. 17, no. 2, pp. 455 - 479, American Meteorological Society, Jan 2016.
The definitive version is available at https://doi.org/10.1175/JHM-D-15-0029.1
Department(s)
Civil, Architectural and Environmental Engineering
Publication Status
Full Access
International Standard Serial Number (ISSN)
1525-7541; 1525-755X
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2023 American Meteorological Society, All rights reserved.
Publication Date
01 Jan 2016
