Journal of Atmospheric and Oceanic Technology: Recent submissions
Now showing items 1321-1340 of 5084
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Measuring Turbulent Dissipation Using a Tethered ADCP
(American Meteorological Society, 2014)he structure function method for estimating the dissipation rate of turbulent kinetic energy, previously validated for measurements from seabed fixed mounts, is applied to data from 1.2-MHz acoustic Doppler current profiler ... -
Global Precipitation Measurement (GPM) Ground Validation (GV) Prototype in the Korean Peninsula
(American Meteorological Society, 2014)ince 2009, the Korea Meteorological Administration (KMA) has participated in ground validation (GV) projects through international partnerships within the framework of the Global Precipitation Measurement (GPM) Mission. ... -
Time, Probe Type, and Temperature Variable Bias Corrections to Historical Expendable Bathythermograph Observations
(American Meteorological Society, 2014)ystematic biases in historical expendable bathythermograph (XBT) data are examined using two datasets: 4151 XBT?CTD side-by-side pairs from 1967 to 2011 and 218 653 global-scale XBT?CTD pairs (within one month and 1°) ... -
Parallelization Strategies for the GPS Radio Occultation Data Assimilation with a Nonlocal Operator in the Weather Research and Forecasting Model
(American Meteorological Society, 2014)he nonlocal excess phase observation operator for assimilating the global positioning system (GPS) radio occultation (RO) sounding data has been proven by some research papers to produce significantly better analyses for ... -
Measuring Stratospheric H2O with an Airborne Spectrometer
(American Meteorological Society, 2014)his study examines the ability of an infrared spectral sensor flying at the tropopause level for retrieving stratospheric H2O. Synthetic downwelling radiance spectra simulated by the line-by-line radiative transfer model ... -
On the Challenges of Tomography Retrievals of a 2D Water Vapor Field Using Ground-Based Microwave Radiometers: An Observation System Simulation Experiment
(American Meteorological Society, 2014)wo-dimensional water vapor fields were retrieved by simulated measurements from multiple ground-based microwave radiometers using a tomographic approach. The goal of this paper was to investigate how the various aspects ... -
On the Measurement of the Turbulence Dissipation Rate from Rising Balloons
(American Meteorological Society, 1984)In this paper we analyze the feasibility of turbulence measurements below a rising balloon. From a typical case study we show the ability of the helisonde, hung below a large diameter balloon, to resolve the vertical profile ... -
A Technique to Account for the Misalignment of Pyranometers Installed on Aircraft
(American Meteorological Society, 1993)Misalignment of pyranometers used for airborne measurements can lead to serious errors in the determination of downwelling radiation flux. The magnitude of these errors depends strongly on the elevation angle of the sun. ... -
A Bistatic Phased-Array Doppler Sonar for Wave–Current Research
(American Meteorological Society, 2014)ave breaking and wave-forced flows are important to air?sea interactions and to the transport and dispersal of materials at sea. But recent measurements have shown a discrepancy in the Eulerian response to wave groups ... -
A Comparison of Two Ground-Based Lightning Detection Networks against the Satellite-Based Lightning Imaging Sensor (LIS)
(American Meteorological Society, 2014)ightning stroke data from both the World Wide Lightning Location Network (WWLLN) and the Earth Networks Total Lightning Network (ENTLN) were compared to lightning group data from the Lightning Imaging Sensor (LIS) from 1 ... -
Cloud and Aerosol Spectroscopy with Raman Lidar
(American Meteorological Society, 2014)spectrometer for height-resolved measurements of the Raman backscatter-coefficient spectrum of water in its gaseous and condensed phases is presented. The spectrometer is fiber coupled to the far-range receiver of the Raman ... -
Sensitivity Analysis of the VVP Wind Retrieval Method for Single-Doppler Weather Radars
(American Meteorological Society, 2014)he sensitivity of the ill-conditioned coefficient matrix (CM) and the size of the analysis volume on the retrieval accuracy in the volume velocity processing (VVP) method are analyzed. By estimating the upper limit of the ... -
Development and Evaluation of an Autonomous Sensor for the Observation of Sediment Motion
(American Meteorological Society, 2014)easurements within the mobile bed layer have been limited by previous Eulerian-based technologies. A microelectromechanical system device, called a smart sediment grain (SSG), that can measure and record Lagrangian ... -
A Fast Inverse Algorithm Based on the Multigrid Technique for Cloud Tomography
(American Meteorological Society, 2014)fast inverse algorithm based on the half-V cycle scheme (HV) of the multigrid technique is developed for cloud tomography. Fourier analysis shows that the slow convergence problem caused by the smoothing property of the ... -
The Effect of Atmospheric Water Vapor Content on the Performance of Future Wide-Swath Ocean Altimetry Measurement
(American Meteorological Society, 2014)easurement of sea surface height (SSH) over a finite swath along satellite tracks has been planned for future space missions. The effect of water vapor in the troposphere on the delay of radar signal must be corrected for ... -
Measuring Antenna Patterns for Ocean Surface Current HF Radars with Ships of Opportunity
(American Meteorological Society, 2014)F radars measure ocean surface currents near coastlines with a spatial and temporal resolution that remains unmatched by other approaches. Most HF radars employ direction-finding techniques, which obtain the most accurate ... -
General Application of the Relative Calibration Adjustment (RCA) Technique for Monitoring and Correcting Radar Reflectivity Calibration
(American Meteorological Society, 2015)ccurate calibration of radar reflectivity is integral to quantitative radar measurements of precipitation and a myriad of other radar-based applications. A statistical method was developed that utilizes the probability ... -
On the Alternate Transmission Mode for Polarimetric Phased Array Weather Radar
(American Meteorological Society, 2014)ulse-to-pulse switching of polarizations (alternate transmission mode) is considered for polarimetric phased array radar (PAR). It is argued that the performance of the radar in terms of data quality should match or exceed ... -
Timing Uncertainty of the Lightning Imaging Sensor
(American Meteorological Society, 2014)he timing uncertainty of the Lightning Imaging Sensor (LIS), on orbit, is not currently accurately known. This is due to an imprecise value of the frame rate in the literature; the conceptual design value of 500 frames per ... -
A Cluster-Based Method for Hydrometeor Classification Using Polarimetric Variables. Part I: Interpretation and Analysis
(American Meteorological Society, 2015)ydrometeor classification methods using polarimetric radar variables rely on probability density functions (PDFs) or membership functions derived empirically or by using electromagnetic scattering calculations. This paper ...