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Doppler weather radar observations of the 2009 eruption of Redoubt Volcano, Alaska
2013
Journal of Volcanology and Geothermal Research
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Ripepe (University of Florence, Italy) for infrasonic array data provision. ...
Karlsdóttir (IMO, Iceland) for providing C-band radar data and useful suggestions on data processing. We also thank W. Degruyter(University of Geneva, CH) for helpful suggestions and M. ...
Through the training forward model, a power-law regressive approximation may be used as a function of the ash class c-th for estimate C a for a given volume bin within the 3D radar scan : = (2.4) where ...
doi:10.1016/j.jvolgeores.2012.11.004
fatcat:zbd3ygjefngsleiai2efrl4l2m
Current Status and Future Challenges of Weather Radar Polarimetry: Bridging the Gap between Radar Meteorology/Hydrology/Engineering and Numerical Weather Prediction
2019
Advances in Atmospheric Sciences
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We also examine the challenges and opportunities of polarimetric phased array radar research and development for future weather observation. Citation: Zhang, G. ...
This approach aligns the observation-based retrievals favored by the radar meteorology community with the model-based analysis of the NWP community. ...
While faster data updates can be realized with phased array radar (PAR) technology, multi-parameter weather measurements can be made by radar polarimetry. ...
doi:10.1007/s00376-019-8172-4
fatcat:woskdstfsbfwfnbfu345scgeoa
Optimizing radar scan strategies for tracking isolated deep convection using observing system simulation experiments
2022
Atmospheric Measurement Techniques
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every 1 min, coupled with a radar simulator and a cell tracking algorithm. ...
better than the operational radar observations that update the volume scan every 5 min. ...
All of these experiments have deployed or plan to deploy multiple mobile weather radars, cloud radars, rapid-scan radars, and phased-array radars. ...
doi:10.5194/amt-15-4931-2022
fatcat:65fpsg6i7fam5akl7zucqko5wm
An Ultra-compact X-Band Dual-Polarized Slotted Waveguide Array Unit Cell for Large E-Scanning Radar Systems
2020
IEEE Access
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They would also like to thank all members of Phased Array Antenna Research and Development group (PAARD) for the discussions and positive feed-backs. ...
Also thanks to the Phased Array Antenna and Development (PAARD) research team for comments and feedback. ...
In this paper, a dual-polarization slotted waveguide antenna array, ideal for weather radar systems, is presented. ...
doi:10.1109/access.2020.3038485
fatcat:mynumujvjjebffyx2khsavzunu
Analytical Study of Dirac Type Dispersion in Simple Periodic Waveguide Structures for Leaky-Wave Applications
2022
IEEE Access
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Phase and leakage constants are adjusted to yield a directive fan-beam featuring continuous scanning in a wide range of angles. ...
A simple theory using circuit modeling is presented to find the condition for Dirac point operation. ...
Based on the array factor approach of 1D LWAs as in [26] , a LWA can be considered as a phased array antenna with interelement spacing p. ...
doi:10.1109/access.2022.3156294
fatcat:7h7mjlbqirhovas3kruxbp4psy
Hurricane Dorian Outer Rain Band Observations and 1D Particle Model Simulations: A Case Study
2020
Atmosphere
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The availability of high quality surface observations of precipitation and volume observations by polarimetric operational radars make it possible to constrain, evaluate, and validate numerical models ...
In this article, a novel particle-based Monte-Carlo microphysical model (called McSnow) is used to simulate the outer rain bands of Hurricane Dorian which traversed the densely instrumented precipitation ...
The 1D super-particle Lagrangian model (McSnow) that simulates all the ice, melting, and rain processes in a multi-dimensional phase space was used to compare with the S-band NPOL (NASA polarimetric) radar ...
doi:10.3390/atmos11080879
fatcat:meoysiy63zd3vn572lnif3gtmq
Investigation of observational error sources in multi Doppler radar vertical air motion retrievals: Impacts and possible solutions
2018
Atmospheric Measurement Techniques Discussions
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air motion in the upper part of convective clouds is examined using the Weather Research and Forecasting (WRF) model simulation, the Cloud Resolving Model Radar SIMulator (CR-SIM) and a three-dimensional ...
Here, the impact of the selected radar volume coverage pattern (VCP), the sampling time for the VCP, the number of radars used, and the added value of advection correction on the retrieval of the vertical ...
rapid scan radar systems such as the DOW's or even phased array 20 radar systems. ...
doi:10.5194/amt-2018-442
fatcat:qhrhnpxcfrd5lf6iwvcmftbfb4
Understanding three-dimensional effects in polarized observations with the ground-based ADMIRARI radiometer during the CHUVA campaign
2011
Journal of Geophysical Research
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One of the authors (C.A. Morales) was also partially supported by FAPESP grant 2009/ 15235-8 and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior-CAPES. A. ...
The authors would like to thank the NASA GPM/GV program for funding the participation of ADMIRARI in the CHUVA campaign, the Brazilian GPM/GV counterpart for logistic assistance and cooperation during ...
The RHI scan strategy varied from 0 to 90°every 0.5°elevation steps. ADMIRARI was set to observe at a constant 30°elevation angle in the direction toward the weather radar, Site 1. ...
doi:10.1029/2010jd015335
fatcat:q325ta6a2rgdfgoj7yqek7iybe
Investigation of observational error sources in multi-Doppler-radar three-dimensional variational vertical air motion retrievals
2019
Atmospheric Measurement Techniques
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air motion in the upper part of convective clouds are examined using the Weather Research and Forecasting (WRF) model simulation, the Cloud Resolving Model Radar SIMulator (CR-SIM), and a three-dimensional ...
Here, the impacts of the selected radar volume coverage pattern (VCP), the sampling time for the VCP, the number of radars used, and the added value of advection correction on the retrieval of the vertical ...
Portions of this work are funded by the U.S. ...
doi:10.5194/amt-12-1999-2019
fatcat:grogsoudu5drjjfdoxd5ave6li
UAV-based Antenna Measurements for Polarimetric Weather Radars: Probe Analysis
2020
IEEE Access
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One of the principal challenges in the calibration of polarimetric weather radars is achieving the strict requirements in the measurement of the antenna radiation pattern of the system; e.g., a copolarization ...
to achieve the required measurement accuracy for weather radar applications. ...
They would also like to thank all members of Phased Array Antenna Research and Development group (PAARD) for the discussions and feedback. ...
doi:10.1109/access.2020.3027779
fatcat:4eay6gyc3nfjrhuu3w34q4t5c4
Front Matter: Volume 10462
2018
AOPC 2017: Optical Sensing and Imaging Technology and Applications
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SPIEDigitalLibrary.org Paper Numbering: Proceedings of SPIE follow an e-First publication model. A unique citation identifier (CID) number is assigned to each article at the time of publication. ...
SPIE uses a seven-digit CID article numbering system structured as follows: The first five digits correspond to the SPIE volume number. The last two digits indicate publication order within the volume ...
TDI for scanning type IRFPA imaging [10462-50]
10462 0X
3D discriminative feature selection for mid-level representation [10462-51]
10462 0Y
Laser radar range profile analysis and simulation [10462 ...
doi:10.1117/12.2297053
fatcat:uj2n3awsarftxgtrrz2zgvfsky
Dual-Polarized Two-Dimensional Multibeam Antenna Array with Hybrid Beamforming and Its Planarization
2021
IEEE Access
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Nowadays, in many scenarios, the antenna has dual-polarization requirements, such as communication base station, weather radar, and so on. ...
their cross-polarization characteristics of a single dimension and a single polarization to get a general idea of the scan capability of the array. ...
doi:10.1109/access.2021.3071645
fatcat:k3c7yr6oe5fd7dfro6dy5lrqta
Table of contents
2019
2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall)
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.. . . . . . . . . . . . 1492 Study on Scattering Pattern Controlling of Phased Array by Lens .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1500 Wide-angle Scanning Phased ...
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1870 Simulation of Airborne Ground Penetrating Radar Model for Detecting Underground ...
doi:10.1109/piers-fall48861.2019.9021769
fatcat:tkvlcifbifgolbr3u3kt5j3jra
Forecasting of Typhoon-Induced Wind-Wave by Using Convolutional Deep Learning on Fused Data of Remote Sensing and Ground Measurements
2021
Sensors
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The results of WAVE-4 revealed using the designed models with in-situ and reflectivity data directly yielded optimal predictions of the wind-based wave heights. ...
The observatory data from the ground stations and buoys, as well as radar reflectivity images, were adopted. ...
Acknowledgments: The authors acknowledge the data provided by Taiwan's Central Weather Bureau.
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/s21155234
fatcat:hq2geibd4ze4detrs35oinurwe
Observation error analysis for the WInd VElocity Radar Nephoscope W-band Doppler conically scanning spaceborne radar via end-to-end simulations
2022
Atmospheric Measurement Techniques
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and the simulation of a radiometric mode, the applicability to global cloud model outputs via an orbital model, the incorporation of a mispointing model accounting for thermoelastic distortions, microvibrations ...
Some of the simulator capabilities are showcased for a case study involving a full rotational scan of the instrument. ...
of clouds and precipitation into numerical weather prediction (NWP) models. 2. ...
doi:10.5194/amt-15-3011-2022
fatcat:sc5z3zufrvb7japx5534atx33m
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