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Estimating Spatial Velocity Statistics with Coherent Doppler Lidar
Publisher: American Meteorological Society
Abstract: The spatial statistics of a simulated turbulent velocity field are estimated using radial velocity estimates from simulated coherent Doppler lidar data. The structure functions from the radial velocity estimates are processed ...
Simulation of Three-Dimensional Turbulent Velocity Fields
Publisher: American Meteorological Society
Abstract: New algorithms for the simulation of three-dimensional homogeneous turbulent velocity fields are compared with standard spectral domain algorithms. Results are presented for a von Kármán model of the covariance tensor. For ...
Summary of a Workshop on Integrating Weather into Unmanned Aerial System Traffic Management
Publisher: American Meteorological Society
Aerosol Plume Detection Algorithm Based on Image Segmentation of Scanning Atmospheric Lidar Data
Publisher: American Meteorological Society
Abstract: n image-processing algorithm has been developed to identify aerosol plumes in scanning lidar backscatter data. The images in this case consist of lidar data in a polar coordinate system. Each full lidar scan is taken as a ...
The NIMA Method for Improved Moment Estimation from Doppler Spectra
Publisher: American Meteorological Society
Abstract: The NCAR Improved Moments Algorithm (NIMA) for estimating moments from wind measurement devices that measure Doppler spectra as a function of range is described in some detail. Although NIMA's main application has been for ...
An Algorithm for Classification and Outlier Detection of Time-Series Data
Publisher: American Meteorological Society
Abstract: An algorithm to perform outlier detection on time-series data is developed, the intelligent outlier detection algorithm (IODA). This algorithm treats a time series as an image and segments the image into clusters of interest, ...
A Horizontal Wind and Wind Confidence Algorithm for Doppler Wind Profilers
Publisher: American Meteorological Society
Abstract: Boundary layer wind profilers are increasingly being used in applications that require high-quality, rapidly updated winds. An example of this type of application is an airport wind hazard warning system. Wind shear can ...
A Fuzzy Logic Method for Improved Moment Estimation from Doppler Spectra
Publisher: American Meteorological Society
Abstract: A new method for estimating moments from wind measurement devices that measure Doppler spectra as a function of range is presented. Quite often the spectra are contaminated by a wide variety of sources, including (but not ...
Radial Velocity and Wind Measurement with NIMA–NWCA: Comparisons with Human Estimation and Aircraft Measurements
Publisher: American Meteorological Society
Abstract: The National Center for Atmospheric Research (NCAR) Improved Moments Algorithm (NIMA) calculates the first and second moments (radial velocity and spectral width) of wind-profiler Doppler spectra and provides an evaluation ...
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