HIRAD Brightness Temperature Image Geolocation Validation

The Hurricane Imaging Radiometer (HIRAD) is an airborne microwave radiometer developed to provide wide-swath hurricane surface wind speed and rain rate imagery for scientific research. This letter presents a geometric evaluation of the brightness temperature (Tb) images produced by HIRAD for high-co...

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Veröffentlicht in:	IEEE geoscience and remote sensing letters 2017-11, Vol.14 (11), p.1908-1912
Hauptverfasser:	Sahawneh, Saleem, Jones, W. Linwood, Biswas, Sayak K., Cecil, Daniel
Format:	Artikel
Sprache:	eng
Schlagworte:	Accuracy Antenna measurements Brightness Brightness temperature Earth Evaluation Geology Hurricane Imaging Radiometer (HIRAD) Hurricanes Image contrast image resolution Imagery Imaging techniques Meteorological satellites Microwave radiometers Microwave radiometry pixel geolocation accuracy Radiometers radiometric imaging Rain Resolution Scientific research Sea measurements Sea surface Spatial discrimination Spatial resolution Surface radiation temperature Surface wind synthetic aperture radiometry synthetic Thinned Aperture Radiometer Temperature Terbium Wind speed
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Zusammenfassung:	The Hurricane Imaging Radiometer (HIRAD) is an airborne microwave radiometer developed to provide wide-swath hurricane surface wind speed and rain rate imagery for scientific research. This letter presents a geometric evaluation of the brightness temperature (Tb) images produced by HIRAD for high-contrast land/water targets. Methodologies used to validate geolocation accuracy and spatial resolution are discussed, and results are presented to provide quantitative pixel geolocation accuracy and the effective image spatial resolution of the Tb image.
ISSN:	1545-598X 1558-0571
DOI:	10.1109/LGRS.2017.2731121