Journal of Atmospheric and Oceanic Technology: Recent submissions
Now showing items 3181-3200 of 5084
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Thermal Inertia of Conductivity Cells: Observations with a Sea-Bird Cell
(American Meteorological Society, 1990)We have examined the magnitude and relaxation time of the thermal anomaly of the fluid flowing through the conductivity cell manufactured by Sea-Bird Electronics (SBE) that is induced by the heat stored in the wall of this ... -
Thermal Inertia of Conductivity Cells: Theory
(American Meteorological Society, 1990)The temperature anomaly of a fluid moving through circular and rectangular cylinders induced by the heat stored in the walls of these hollow cylinders is derived under the assumption of quasi-steady heat transfer. These ... -
An Approach to the Detection of Long-Term Trends in Upper Stratospheric Ozone from Space
(American Meteorological Society, 1990)A central problem in the detection of long-term trends in upper stratospheric ozone from orbiting remote sensors involves the separation of instrument drifts from true geophysical changes. Periodic flights of a Solar ... -
Bias Elimination and Scatter in Lightning Location by the VLF Arrival Time Difference Technique
(American Meteorological Society, 1990)In the very low frequency (VLF) band lightning flashes are detectable at ranges of several thousand kilometers. Studies of experimental data show that if systematic biases were eliminated from the U.K. Meteorological ... -
A New Fast Response Instrument for Measuring Total Water Content from Aircraft
(American Meteorological Society, 1990)A device for measuring the total water content of a parcel of air from an aircraft has been developed. The total water of a parcel of air is a conserved quantity, independent of phase changes, provided there is no transport ... -
Estimation of Synoptic Fields of Middle Atmosphere Parameters from Nimbus-7 LIMS Profile Data
(American Meteorological Society, 1990)The most widely used version of the Nimbus-7 LIMS middle atmosphere dataset is the set of high quality, daily, and zonal Fourier coefficients that resolve information out to six wavenumbers at 12 UTC. A Kalman filter ... -
Size Calibration Corrections for the Forward Scattering Spectrometer Probe (FSSP) for Measurement of Atmospheric Aerosols of Different Refractive Indices
(American Meteorological Society, 1990)The response of the Forward Scattering Spectrometer probe (FSSP) is affected by the optical properties of measured particles. The manufacturer's size calibration data are specifically applicable to nonabsorbing water ... -
An Airborne Comparison of Three PMS Probes
(American Meteorological Society, 1984)The 1977?78 Sierra Cooperative Pilot Project (SCPP) field season offered an opportunity for comparing several Particle Measuring Systems (PMS) probes. During that winter the University of Wyoming's King Air aircraft was ... -
Corrections for the Effects of Particle Trajectory and Beam Intensity Profile on the Size Spectra of Atmospheric Aerosols Measured with a Forward Scattering Spectrometer Probe
(American Meteorological Society, 1990)Distortion of the size spectra measured with a forward mattering spectrometer probe (FSSP) under different transit time modes??inhibit?, ?normal?, and ?delayed??was evaluated using the theoretical analyses by Baumgardner ... -
Evaluation of the Forward Scattering Spectrometer Probe. Part III: Time Response and Laser Inhomogeneity Limitations
(American Meteorological Society, 1990)The electronic response time of the Forward Scattering Spectrometer Probe (FSSP) has been evaluated and is shown to affect the measurement of droplet size. The size of droplets are underestimated when airspeeds exceed 50 ... -
A New Analysis for the Retrieval of Three-Dimensional Mesoscale Wind Fields from Multiple Doppler Radar
(American Meteorological Society, 1990)The present study is devoted to a new analysis of the Doppler information from multiple Doppler radar scannings aimed at studying the three-dimensional wind field at mesoscale. This analysis referred to as MANDOP (for ... -
An In Situ Technique for Intercalibrating Temperature or Conductivity Sensors on Towed Arrays
(American Meteorological Society, 1990)Vertical arrays of temperature and conductivity sensors are towed from research vessels to obtain cross sections of the ocean's internal structure that result from the dynamic finescale and microscale processes. To estimate ... -
Error Structure of Multiparameter Radar and Surface Measurements of Rainfall. Part III: Specific Differential Phase
(American Meteorological Society, 1990)Parts I and II of this three part paper dealt with the error structure of differential reflectivity and X-band specific attenuation in rainfall as estimated by radar and surface disdrometers. In this Part III paper we focus ... -
Development of the Hydrometeor Videosonde
(American Meteorological Society, 1990)A new special sonde, the hydrometeor videosonde (HYVIS), has been developed to measure the vertical distribution of hydrometeors in clouds. The HYVIS has two small TV cameras that take pictures of hydrometeors (from 7 ?m ... -
On the Error Observed in Electronically Digitized T-7 XBT Data
(American Meteorological Society, 1990)Recent studies in the Gulf of Mexico have generated datasets that permit comparisons of CTD data with electronically digitized T-7 XBT data. This paper presents the results of two such comparisons involving the use of the ... -
Sea Ice Velocity Measurements by Upward-Looking Doppler Current Profilers
(American Meteorological Society, 1990)A novel method for measuring sea ice motion using upward-looking Acoustic Doppler Current Profilers is presented. The method overcomes some of the drawbacks inherent in other methods such as lack of temporal resolution or ... -
An Evaluation of the WOTAN Technique of Inferring Oceanic Winds from Underwater Ambient Sound
(American Meteorological Society, 1990)The potential of the WOTAN technique to estimate oceanic winds from underwater ambient sound is thoroughly evaluated. Anemometer winds and sound spectrum levels at 11 frequencies in the range 3?25 kHz from the FASINEX ... -
Moored Salinity Time Series Measurements at 0°, 140°W
(American Meteorological Society, 1990)This study describes moored salinity time series measurements in a biologically productive equatorial upwelling regime in the Pacific Ocean (0°, 140°W). Data were collected at 26 m and at 100 m for 13 months during 1987?1988 ... -
Air Flow and Particle Trajectories around Aircraft Fuselages. II: Measurements
(American Meteorological Society, 1984)Measurements have been made of airflow velocities and cloud liquid water contents from selected positions around the fuselage of an F-27 aircraft. The airflow measurements away from the propeller inflow region are in ... -
Statistical Tests for the Comparison of Surface Gravity Wave Spectra with Application to Model Validation
(American Meteorological Society, 1990)A new second generation deep-water ocean wave model VAG is presented and several modifications are tested on a one month hindcast. On the same period and with the same windfields a version of the third generation model WAM ...