Journal of Atmospheric and Oceanic Technology: Recent submissions
Now showing items 1581-1600 of 5084
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Precipitation Classification and Quantification Using X-Band Dual-Polarization Weather Radar: Application in the Hydrometeorology Testbed
(American Meteorological Society, 2013)his paper presents new methods for rainfall estimation from X-band dual-polarization radar observations along with advanced techniques for quality control, hydrometeor classification, and estimation of specific differential ... -
Radiation Dry Bias Correction of Vaisala RS92 Humidity Data and Its Impacts on Historical Radiosonde Data
(American Meteorological Society, 2012)he Vaisala RS92 radiosonde is the most widely used type of sonde in the current global radiosonde network. One of the largest biases in the RS92 humidity data is its daytime solar radiation dry bias (SRDB). An algorithm ... -
A Satellite-Based Convective Cloud Object Tracking and Multipurpose Data Fusion Tool with Application to Developing Convection
(American Meteorological Society, 2012)tudying deep convective clouds requires the use of available observation platforms with high temporal and spatial resolution, as well as other non?remote sensing meteorological data (i.e., numerical weather prediction model ... -
Determination of Planetary Boundary Layer Height on Short Spatial and Temporal Scales: A Demonstration of the Covariance Wavelet Transform in Ground-Based Wind Profiler and Lidar Measurements
(American Meteorological Society, 2013)his article explores the application of the covariance wavelet transform (CWT) to lidar and, for the first time to the authors' knowledge, wind profiler data to examine the possibility of accurate and continuous planetary ... -
Beam Geometry Calibration of Sodars without Use of a Mast
(American Meteorological Society, 2013)new method for calibration of sodar wind speed measurements is described. The method makes no assumptions whatsoever about the sodar operation and its hardware and software, other than the assumption that only one beam is ... -
Performance and Technique of Coherent 2-μm Differential Absorption and Wind Lidar for Wind Measurement
(American Meteorological Society, 2012)coherent 2-?m differential absorption and wind lidar (Co2DiaWiL) has been built with a high-power Q-switched Tm,Hm:YLF laser to measure CO2 concentration and radial wind speed. The performance of the Co2DiaWiL is described ... -
High-Frequency Radars: Beamforming Calibrations Using Ships as Reflectors
(American Meteorological Society, 2012)inear array antennas and beamforming techniques offer some advantages compared to direction finding using squared arrays. The azimuthal resolution depends on the number of antenna elements and their spacing. Assuming an ... -
Influence of Filter Band Function on Retrieval of Aerosol Optical Depth from Sunphotometer Data
(American Meteorological Society, 2013)eer?s attenuation law is the basis for the retrieval of aerosol optical depth (AOD) from sunphotometer data. However, the filter band function causes uncertainty during the retrieval of AOD from sunphotometer data, ... -
Comments on “A Bias in the Midtropospheric Channel Warm Target Factor on the NOAA-9 Microwave Sounding Unit”
(American Meteorological Society, 2013)o-Chedley and Fu investigated the difference in the magnitude of global temperature trends generated from the Microwave Sounding Unit (MSU) for the midtroposphere (TMT, surface to about 75 hPa) between the University of ... -
The Response of the Dines Anemometer to Gusts and Comparisons with Cup Anemometers
(American Meteorological Society, 2013)he Dines pressure tube anemometer was the primary wind speed recording instrument used in Australia until it was replaced by Synchrotac cup anemometers in the 1990s. Simultaneous observations of the gust wind speeds recorded ... -
Lidar Investigation of Atmosphere Effect on a Wind Turbine Wake
(American Meteorological Society, 2013)n experimental study of the spatial wind structure in the vicinity of a wind turbine by a NOAA coherent Doppler lidar has been conducted. It was found that a working wind turbine generates a wake with the maximum velocity ... -
A Simple Model for Correcting Sodar and Lidar Errors in Complex Terrain
(American Meteorological Society, 2012)round-based sensing of wind profiles by sodars and lidars is becoming the standard for wind energy and other applications. However, there remain difficulties in complex terrain since the instruments sense wind components ... -
A Review and Practical Guide to In-Flight Calibration for Aircraft Turbulence Sensors
(American Meteorological Society, 2013)large number of quantities have to be measured and processed to determine the atmospheric-state variables, which are the actual measurands, from aircraft-based measurements. A great part of the dependencies between these ... -
A Free-Floating PIV System: Measurements of Small-Scale Turbulence under the Wind Wave Surface
(American Meteorological Society, 2013)n in situ free-floating underwater miniature particle image velocimetry (UWMPIV) system is developed and applied to measure the structure of turbulence in the aqueous side of the wind wave surface boundary layer. The UWMPIV ... -
A Supplementary Clear-Sky Snow and Ice Recognition Technique for CERES Level 2 Products
(American Meteorological Society, 2012)dentification of clear-sky snow and ice is an important step in the production of cryosphere radiation budget products, which are used in the derivation of long-term data series for climate research. In this paper, a new ... -
A Variational Assimilation System for Nearshore Wave Modeling
(American Meteorological Society, 2013)variational data assimilation system is developed for the stationary, homogeneous portion of the wave model Simulating Waves Nearshore (SWAN). The system is based on a numerical adjoint constructed for the discrete forward ... -
Liquid Water Cloud Measurements Using the Raman Lidar Technique: Current Understanding and Future Research Needs
(American Meteorological Society, 2013)his paper describes recent work in the Raman lidar liquid water cloud measurement technique. The range-resolved spectral measurements at the National Aeronautics and Space Administration Goddard Space Flight Center indicate ... -
Polarization Lidar at Summit, Greenland, for the Detection of Cloud Phase and Particle Orientation
(American Meteorological Society, 2013)ccurate measurements of cloud properties are necessary to document the full range of cloud conditions and characteristics. The Cloud, Aerosol Polarization and Backscatter Lidar (CAPABL) has been developed to address this ... -
High-Resolution Atmospheric Sensing of Multiple Atmospheric Variables Using the DataHawk Small Airborne Measurement System
(American Meteorological Society, 2013)he DataHawk small airborne measurement system provides in situ atmospheric measurement capabilities for documenting scales as small as 1 m and can access reasonably large volumes in and above the atmospheric boundary layer ... -
Three-Dimensional VHF Lightning Mapping System for Winter Thunderstorms
(American Meteorological Society, 2012)three-dimensional (3D) winter lightning mapping system employing very high frequency (VHF) broadband signals was developed for continuous remote observation in winter. VHF broadband pulses radiated by leader progression ...