Objective Identification of Echoes Due to Anomalous Propagation in Weather Radar Data
نویسندگان
چکیده
منابع مشابه
Modelling of weather radar echoes from anomalous propagation using a hybrid parabolic equation method and NWP model data
Contamination of weather radar echoes by anomalous propagation (anaprop) mechanisms remains a serious issue in quality control of radar precipitation estimates. Although significant progress has been made identifying clutter due to anaprop there is no unique method that solves the question of data reliability without removing genuine data. The work described here relates to the development of a...
متن کاملEffects of Anomalous Propagation Conditions on Weather Radar Observations
The effect of atmospheric propagation on radar observations is an important topic both for radar application developers and end-users of radar products, particularly of weather radar systems. An excellent review of this subject is given by Patterson (2008), and most general books about weather radars have a chapter on the topic –see for example Battan (1973), Collier (1996), Doviak and Zrnic (2...
متن کاملAnomalous Propagation Ground Clutter Suppression with the Airport Surveillance Radar (ASR) Weather Systems Processor (WSP)
Ground-elutter breakthrough caused by anomalous propagation (AP}----ducting of the radar beam when passing through significant atmospheric temperature and/or moisture gradients-is a significant issue for air traffic controllers who use Airport Surveillance Radar (ASR) weather channel data to guide aircraft through the airport terminal area. At present, these data are often contaminated with AP,...
متن کاملA Technique to Censor Biological Echoes in Radar Reflectivity Data
Existing techniques of quality control of radar reflectivity data rely on local texture and vertical profiles to discriminate between precipitating echoes and non-precipitating echoes. Non-precipitating echoes may be due to artifacts such as anamalous propagation, ground clutter, electronic interference, sun strobe, and biological contaminants (i.e., birds, bats and insects). The local texture ...
متن کاملFiltering weather radar AP echoes with MSG observations and NWP data
Climatological atmospheric observations indicate that statistical normal propagation is associated to vertical refractive index gradients of the first kilometer of the atmosphere (VRG) between -39 and 40 km. When this condition is verified the beam path of the electromagnetic waves are curved towards the terrestrial surface, with a smaller curvature than the average Earth's surface curvature. T...
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ژورنال
عنوان ژورنال: Journal of Atmospheric and Oceanic Technology
سال: 1998
ISSN: 0739-0572,1520-0426
DOI: 10.1175/1520-0426(1998)015<0098:oioedt>2.0.co;2