Journal of Atmospheric and Oceanic Technology: Recent submissions
Now showing items 3241-3260 of 5084
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A Differential Reflectivity Radar Hall Measurement Technique: Observations during the Denver Hailstorm of 13 June 1984
(American Meteorological Society, 1990)A differential reflectivity radar technique for observing hailstorms is demonstrated using measurements obtained during the 13 June 1984 Denver hailstorm. The hail regions of the storm are identified with the differential ... -
Measuring Near-Surface Meteorology over the Ocean from an Array of Surface Moorings in the Subtropical Convergence Zone
(American Meteorological Society, 1990)An array of five surface moorings was set in the subtropical convergence zone southwest of Bermuda with spacings of 16 to 53 km. Meteorological instrumentation on each of the surface buoys recorded wind velocity, barometric ... -
Measuring Upper Ocean Variability from an Array of Surface Moorings in the Subtropical Convergence Zone
(American Meteorological Society, 1990)Measurements of upper ocean variability were made in the subtropical convergence zone southwest of Bermuda from an array of five surface moorings set with spacings of 16 to 53 km. The intent was to observe oceanic fronts ... -
A Comparison of Vertical Velocity in Cirrus Obtained from Aircraft and Lidar Divergence Measurements during FIRE
(American Meteorological Society, 1990)Techniques are presented to obtain vertical velocity in cirrus clouds from in situ aircraft lateral wind measurements and from ground-based remote Doppler lidar measurements. In general, direct measurements of absolute ... -
Confidence Limits for Friction Velocity Determined from Turbulence Profiles in Coastal Waters
(American Meteorological Society, 1990)It is possible to determine the friction velocity u* at the ocean bottom in coastal waters by measuring a profile of the local rate of turbulent dissipation. A single profile of dissipation gives one computation of u*. The ... -
Vertical Motion of Neutrally Buoyant Floats
(American Meteorological Society, 1990)The vertical motion of a neutrally buoyant float is determined from the solution to the nonlinear forced harmonic oscillator equation originally set forth by Voorhis. Float response to forced vertical oscillations is ... -
High Resolution Measurements of Turbulence, Velocity and Stress Using a Pulse-to-Pulse Coherent Sonar
(American Meteorological Society, 1990)Considered are the capabilities of a recently developed pulse-to-pulse coherent sonar called the High Resolution Current Profiler (HRCP). Special emphasis is placed on methods whereby reliable and accurate vertical profiles ... -
Statistical Test of the Distribution of Sea Surface Deflection
(American Meteorological Society, 1990)Most of the common statistical tests are based upon statistically independent data. Many observations of physical phenomena are statistically dependent, as is indicated by the sample-autocorrelation function. In this paper, ... -
Implementations of Space-Time Correlations of Atmospheric Turbulence Using a Low-Cost, High-Performance Parallel Approach
(American Meteorological Society, 1989)Modern meteorological experiments are capable of generating such large quantities of data that the processing of the results can be prohibitively expensive on a mainframe or far too time-consuming on most reasonably priced ... -
Remote Sensing of Clouds and Fog with a 1.4-mm Radar
(American Meteorological Society, 1989)A recently developed 1.4 mm wavelengh incoherent radar has potential for remote sensing of low reflectivity atmospheric targets for ranges up to several kilometers. Power output of 60 W is achieved using an Extended ... -
Comparison and Optimization of AVHRR Sea Surface Temperature Algorithms
(American Meteorological Society, 1989)Satellite measurements of sea surface temperature (SST) are regularly available from data supplied by the AVHRR instruments on the NOAA meteorological satellites. In cloudless areas SST is derived from the infrared data ... -
Accuracy of Vertical Air Motions from Nadir-Viewing Doppler Airborne Radars
(American Meteorological Society, 1989)This paper presents an analysis of the uncertainties expected in vertical velocities using a vertically pointing airborne Doppler radar which has a nadir or zenith-pointing beam. To examine the expected uncertainty, the ... -
Field and Laboratory Comparisons of Two Cloud Condensation Nuclei Counters
(American Meteorological Society, 1989)An extensive series of experiments was carried out to compare the performance of two cloud nucleus counters, a Static Diffusion Chamber and a Thermal Diffusion Tube, operating under quite different principles, in a wide ... -
An Instantaneous CCN Spectrometer
(American Meteorological Society, 1989)A thermal gradient diffusion cloud chamber with a supersaturation field that increases along the path of the flow of sample is used as a cloud condensation nucleus (CCN) spectrometer. The CCN spectrum is derived from the ... -
Identifying and Screening Filter Skew and Noise Bias in Acoustic Doppler Current Profiler Measurements
(American Meteorological Society, 1989)Acoustic Doppler current profiler (ADCP) velocity measurements an subject to bias due to the effect of the signal processing filters on the spectrum of the Doppler-shifted signal and on the noise. Bias will occur when the ... -
Evaluation of Unambiguous Vector Winds from the Seasat Scatterometer
(American Meteorological Society, 1989)Ambiguity in wind direction has long been an impediment to applications of wind observations from the Seasat scatterometer (SASS). Three months of unambiguous global SASS vector winds (7 July-10 October 1978) have recently ... -
Estimation of Mesoscale Vertical Derivatives of Potential Temperature and Density from Hydrographic Data
(American Meteorological Society, 1989)This study was motivated by the need to combine vertical derivative estimates of either potential density or temperature with SOFAR float data for estimating vortex stretching in the main (700 m) and lower thermocline (1300 ... -
CORRIGENDUM
(American Meteorological Society, 2000) -
A Comparison of Several Radiometric Methods of Deducing Path-Integrated Cloud Liquid Water
(American Meteorological Society, 1989)Using radiometer data collected during the Canadian Atlantic Storms Program, we have investigated five different methods of estimating the path-integrated, or columnar, cloud liquid water. The methods consist of one- and ... -
Tuning the Barnes Objective Analysis Parameters by Statistical Interpolation Theory
(American Meteorological Society, 1989)The parameters of the Barnes objective analysis scheme are often chosen on the basis of a desired frequency response, but they can also be chosen using the criterion of the theoretical root-mean-square interpolation error ...