Application of Non-Uniform Beam Filling (NUBF) Doppler Velocity Error Correction on Airborne Radar Measurements

Non-uniform beam filling (NUBF) within an atmospheric radar sampling volume can cause significant Doppler velocity errors when the radar is located on a fast-moving platform. A case of strong NUBF errors was identified in ER-2 X-band Radar (EXRAD) data from the Investigation of Microphysics and Prec...

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Veröffentlicht in:	IEEE geoscience and remote sensing letters 2021-10, Vol.19
Hauptverfasser:	McLinden, Matthew L. Walker, Loftus, Adrian M., Li, Lihua, Heymsfield, Gerald M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Instrumentation And Photography Meteorology And Climatology
Online-Zugang:	Volltext
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Zusammenfassung:	Non-uniform beam filling (NUBF) within an atmospheric radar sampling volume can cause significant Doppler velocity errors when the radar is located on a fast-moving platform. A case of strong NUBF errors was identified in ER-2 X-band Radar (EXRAD) data from the Investigation of Microphysics and Precipitation for Atlantic Coast-Threatening Snowstorms (IMPACTS) 2020 field campaign. A basic NUBF correction was employed using an estimate of the along-track radar reflectivity gradient. The relationship is verified empirically using co-located Doppler velocity measurements from the higher resolution Cloud Radar System (CRS).
ISSN:	1545-598X 1558-0571
DOI:	10.1109/LGRS.2021.3120647