Radar Echoes
Modelling of weather radar echoes from anomalous propagation using a hybrid parabolic equation method and NWP model data
... Abstract. Contamination of weather radar echoes by anoma- lous propagation (anaprop) mechanisms remains a serious is- sue in quality control of radar precipitation estimates. Al- though significant ...
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On the response of fading times of upper homosphere radar echoes to solar and geomagnetic disturbances
... MF radar at 69 ◦ N 19 ◦ E. This radar, jointly owned by University of Tromsø (Norway), University of Saskatchewan (Canada) and Nagoya Univer- sity (Japan) has been described in detail by Hall (2001b); all ...
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Analysis of Radar Echoes using Soft Thresholding De-Noising Techniques
... LAWP Radar wind profilers use either Spaced Antenna (SA) or Doppler Beam Swinging (DBS) technique for measuring the atmospheric ...winds. Radar echoes are recorded in beam directions, ...
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Comparison of linear and logarithmic receiver signals from polarimetric weather radar echoes and their temporal decorrelation properties
... weather radar observables calculated from the logarith- mic receiver signals by the DSP are plotted against the corre- sponding weather radar observables we have calculated from the linear receiver ...
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CFAR Detection from Noncoherent Radar Echoes Using Bayesian Theory
... noncoherent radar echoes, considering heterogeneous sea ...marine radar systems, which makes it particularly attractive for economical CFAR detection ...
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Wind direction manifestation on HF ocean radar echoes
... At 2200 UTC (Fig. 5(c)), the wind on the longitude transect has a consistent southerly component, and the clear transition zone to the west of Cape Wiles indicates a north-westerly wind.At 2300 UTC (Fig. 5(d)), the wind ...
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Mesosphere summer echoes observed with the SuperDARN Hokkaido HF radar at Rikubetsu, Japan (43 5°N)
... Strong radar echoes, called polar mesosphere summer echoes (PMSE), from the cold summer mesopause region at high latitudes have been observed mainly with VHF radars (hereafter called VHF-PMSE) ...VHF ...
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Short term Precipitation Prediction Based on a Neural Network Method from Radar Observations
... Doppler radar data and the rain gauge data of regional stations in Wuhan, the nowcasting of the radar echoes and rain intensity was conducted using artificial neural networks ...the ...
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Target Classification with Low-Resolution Radars Based on Multifractal Correlation Characteristics in Fractional Fourier Domain
... aircraft echoes can be maximally aggregated, and the distribution of clutter is relatively dispersed, so we should find the optimal fractional Fourier domain of low-resolution radar ...aircraft echoes ...
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Remote sensing of mesospheric dust layers using active modulation of PMWE by high power radio waves
... (radar echoes) in the HF band and average charge on the dust particles can be used to study the fundamental physics associated with the dust charging in the PMWE source ...
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Enhancing the spatiotemporal features of polar mesosphere summer echoes using coherent MIMO and radar imaging at MAARSY
... summer echoes (PMSEs) are very strong radar echoes caused by the presence of ice parti- cles, turbulence, and free electrons in the mesosphere over polar ...Recent radar imaging studies have ...
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Occurrence frequencies of polar mesosphere summer echoes observed at 69 N during a full solar cycle
... strong radar echoes from the mesopause region during summer is well known from VHF radar obser- vations at frequencies between ∼ 2 MHz and ∼ 1 GHz at po- lar and middle latitudes for more than 30 ...
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Parameter Inversions of Multi Layer Media of Mars Polar Region with Validation of SHARAD Data
... frequency) radar sounder technology has been developed for several missions of Mars surface/subsurface ...of radar echoes from rough surface/stratified interfaces, an inversion approach is developed ...
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Remote sensing of mesospheric dust layers using active modulation of PMWE by high power radio waves
... winter echoes (PMWE) are radar echoes observed during the polar winter at altitudes around 50–80 km and are much weaker than their PMSE (polar mesospheric summer echoes) ...and radar ...
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TARA: Forward-scattered radar detection of UHECR at the telescope array
... “bistatic” radar signature. Bistatic radar holds promise as a new remote sensing technique for UHECR, without the duty cycle limitations of nitrogen fluorescence ...collected radar data since April ...
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Radar and modelling studies of polar mesospheric summer echoes
... Summer Echoes are strong echoes from radar waves backscattered from the mesopause region, at high latitude and in ...no radar echoes were expected (at large aspect angles to the field ...
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Characteristics of the layered polar mesosphere summer echoes occurrence ratio observed by EISCAT VHF 224 MHz radar
... summer echoes (PMSEs) are strong radar echoes observed in the polar mesopause dur- ing the local ...VHF) radar during 2004–2015 in the latest solar cycle are used to study the vari- ations of ...
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Morphology of tropical mesospheric echoes observed by VHF radar
... MST radar located at Gadanki ...VHF radar echoes in the mesosphere are due to both the presence of irregularities with scales of half the radar wavelengths, and also the production and loss ...
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High-range resolution spectral analysis of precipitation through range imaging of the Chung-Li VHF radar
... (VHF) radar, located on the campus of National Central University, Tai- wan, since ...the radar experiment for observation of the precip- itating atmosphere during the period between 21 and 23 Au- gust ...
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A comparison of overshoot modelling with observations of polar mesospheric summer echoes at radar frequencies of 56 and 224 MHz
... a radar at the MORRO frequency observes R1 > R0 for much of the time when the heater is on, the observa- tions with the VHF radar should consistently show a much smaller value of R1 / R0, which even ...
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