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Radar Measurements

Investigating rainfall estimation from radar measurements using neural networks

Investigating rainfall estimation from radar measurements using neural networks

... between radar measure- ments and rainfall ...of radar measurements and rain gauge ...using radar reflectivity as input and rain gauge as the ...Weather Radar) ground radar (KMLB) ...

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Constraining variable density of ice shelves using wide-angle radar measurements

Constraining variable density of ice shelves using wide-angle radar measurements

... wide-angle radar measurements on RBIS and used traveltime inversion in conjunction with ray tracing to infer the local depth–density ...MHz) radar system with cor- respondingly reduced spatial ...

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Time-dependent relationships for estimating rainfall fields from radar measurements

Time-dependent relationships for estimating rainfall fields from radar measurements

... accurate radar-based rainfall estimates and we do not claim any physical interpretations of the obtained ...the radar measurements and the uncertainty which derives from coupling reflectivity ...

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Polarimetric X-band weather radar measurements in the tropics: radome and rain attenuation correction

Polarimetric X-band weather radar measurements in the tropics: radome and rain attenuation correction

... X-band radar data were collected in in Fort- aleza, northern ...X-band radar measurements were compared with the disdrometer measurement located in 20 km distance from the ...

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Multi-channel and multi-polarization radar measurements around the NEEM site

Multi-channel and multi-polarization radar measurements around the NEEM site

... ing radar wave polarizations by rotating a pair of orthogonal receiving antennas and observing variations in echo strength, and presented a linear incremental trend in the phase differ- ence between ordinary and ...

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Unraveling hydrometeor mixtures in polarimetric radar measurements

Unraveling hydrometeor mixtures in polarimetric radar measurements

... of radar sampling volumes with mixed hydrometeors, despite the conventional pulse averaging, which is supposed to filter out the contribu- tion of ...a radar sampling volume can be expected in the case of a ...

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High resolution radar measurements of snow avalanches

High resolution radar measurements of snow avalanches

... FMCW radar system with unprecedented spatial resolution. The 5.3 GHz radar penetrates through the powder cloud and re fl ects off the underlying denser ...the radar results and existing measurement ...

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Hydrometeor classification from polarimetric radar measurements: a clustering approach

Hydrometeor classification from polarimetric radar measurements: a clustering approach

... The typical HC techniques mentioned above have become a state-of-the-art approach, stable and robust enough to be implemented operationally. However, it is important to un- derline that these approaches have some ...

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Polarisation basis transformation of weather radar measurements in the power domain

Polarisation basis transformation of weather radar measurements in the power domain

... A radar that combines all these approaches is the Polarisa- tion Diversity Radar POLDIRAD of the German Aerospace Center (DLR) in Oberpfaffenhofen built in the mid ...wavelength) radar and its ...

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High-resolution humidity profiles retrieved from wind profiler radar measurements

High-resolution humidity profiles retrieved from wind profiler radar measurements

... UHF measurements are com- bined with consecutive radiosonde observations, spaced 6 h or longer, to retrieve high-resolution atmospheric humidity ...the measurements of a ground-based Raman li- dar located ...

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VHF radar measurements of momentum flux using summer polar mesopause echoes

VHF radar measurements of momentum flux using summer polar mesopause echoes

... The signal-to-noise ratios (SNRs), radial velocities and spectral widths for the 3-min averaged data are typical for this type of observation in that they are character- ized by substantial temporal and spatial ...

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A simple biota removal algorithm for 35 GHz   cloud radar measurements

A simple biota removal algorithm for 35 GHz cloud radar measurements

... cloud radar observations at 95 GHz are found to be less ( ∼ 5 dBZ) sensitive to biota than observations at 35 GHz (Khandwalla et ...Cloud radar signals frequently encounter these biota at an altitude within ...

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Polarimetric radar observations during an orographic rain event

Polarimetric radar observations during an orographic rain event

... bath radar data at Hohenpeißenberg. Radar data show distinct mesoscale features which result in an increase in surface rain rate which can be related to a warm ...the radar data (see early morning ...

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Extended Kalman Filter Modelling for Tracking Radar with Missing Measurements

Extended Kalman Filter Modelling for Tracking Radar with Missing Measurements

... Most existing results regarding the missing measurements have concentrated on linear systems. It is well known that the nonlinearity is a ubiquitous feature in almost all practical systems, and the occurrence of ...

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The importance of particle size distribution and internal structure for triple-frequency radar retrievals of the morphology of snow

The importance of particle size distribution and internal structure for triple-frequency radar retrievals of the morphology of snow

... PIP measurements indi- cate a broad PSD (µ = − 1) throughout this case; we there- fore set µ = −1 for all retrievals, acknowledging that this prior knowledge from in situ measurements is not always ...

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Airborne polarimetric Doppler weather radar: trade-offs between various engineering specifications

Airborne polarimetric Doppler weather radar: trade-offs between various engineering specifications

... describes radar system and its major ...the radar measurements depends on transmit and receive hardware characteristics, polarimetric measurement configuration, and signal ...Expected radar ...

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MEASUREMENTS OF RAIN DROP SIZE DISTRBUTION FROM RADAR REFLECTIVITY AND ASSOCIATED RAIN ATTENUATION OF RADIO WAVES

MEASUREMENTS OF RAIN DROP SIZE DISTRBUTION FROM RADAR REFLECTIVITY AND ASSOCIATED RAIN ATTENUATION OF RADIO WAVES

... Abstract: Radar measurements of rainfall at different climatological conditions have been taken into account emphasizing rain rate and associated radar ...of radar reflectivity, the rain drop ...

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On precipitation measurements collected by a weather radar and a rain gauge network

On precipitation measurements collected by a weather radar and a rain gauge network

... weather radar with polarization agility managed by the CNR-ISAC (Institute of Atmospheric Sciences and Cli- mate of the National Research Council) in ...The radar is located 15 km south-east of Rome ...

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A comparison of vertical velocity variance measurements from wind profiling radars and sonic anemometers

A comparison of vertical velocity variance measurements from wind profiling radars and sonic anemometers

... variance measurements Averaging multiple Doppler spectra in time can reduce the noise level in the radar measurements and has implications for the scales of turbulence observed in either the spectral ...

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Short Communication: Doppler Radar: A Non Invasive Technique for Measuring Ventilation Rate in Resting Bats

Short Communication: Doppler Radar: A Non Invasive Technique for Measuring Ventilation Rate in Resting Bats

... pipistrellus when free hanging radar measurements and when hand held hot-wire anemometer measurements.. Values are means calculated from 5-10 sampling periods lasting 1.5-2 s.[r] ...

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