Journal of Atmospheric and Oceanic Technology: Recent submissions
Now showing items 2061-2080 of 5084
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On the Use of Lidar Images of Smoke Plumes to Measure Dispersion Parameters in the Stable Boundary Layer
(American Meteorological Society, 2006)In this note a methodology is presented for measuring dispersion parameters based on lidar images, which can be used as an efficient way to remotely monitor time variations of plume dispersion parameters. Lidar images of ... -
Changes in Instruments and Sites Affecting Historical Weather Records: A Case Study
(American Meteorological Society, 2006)All long historical climate records are based on measurements that experienced shifts in instrumentation, site characteristics, or locations. How such changes affect the quality of past data remains an uncertainty for the ... -
Evaluation of Surface Shortwave Flux Estimates from GOES: Sensitivity to Sensor Calibration
(American Meteorological Society, 2006)Parameters derived from satellite observations depend on the quality of the calibration method applied to the raw satellite radiance measurements. This study investigates the sensitivity of absolute reflectance, derived ... -
Calibrating Differential Reflectivity on the WSR-88D
(American Meteorological Society, 2006)A calibration procedure of differential reflectivity on the Weather Surveillance Radar-1988 Doppler (WSR-88D) is described. It has been tested on NOAA's modified WSR-88D research and development polarimetric radar and is ... -
On Measuring the Terms of the Turbulent Kinetic Energy Budget from an AUV
(American Meteorological Society, 2006)The terms of the steady-state, homogeneous turbulent kinetic energy budgets are obtained from measurements of turbulence and fine structure from the small autonomous underwater vehicle (AUV) Remote Environmental Measuring ... -
Measurement of Turbulent Kinetic Energy Dissipation Rate with a Lagrangian Float
(American Meteorological Society, 2006)This study tests the ability of a neutrally buoyant float to estimate the dissipation rate of turbulent kinetic energy ε from its vertical acceleration spectrum using an inertial subrange method. A Lagrangian float was ... -
Derivation of the Water Vapor Content from the GNSS Radio Occultations Observations
(American Meteorological Society, 2006)The present work investigates the possibility of retrieving humidity using the bending angle data obtained from radio occultation of GPS signals without additional external information. In particular, with the proposed ... -
Intercomparisons and Aerosol Calibrations of 12 Commercial Integrating Nephelometers of Three Manufacturers
(American Meteorological Society, 2006)This study determined measured and Mie-calculated angular signal truncations for total and backscatter TSI, Inc., nephelometers, as a function of wavelength and for particles of known size and composition. Except for the ... -
Comparison of Reynolds Stress Estimates Derived from Standard and Fast-Ping ADCPs
(American Meteorological Society, 2006)A field experiment was conducted to directly compare the effects of different sampling modes on Reynolds stress estimates calculated from acoustic Doppler current profilers (ADCPs). Two 1.2-MHz ADCPs were deployed concurrently ... -
Accuracy of Measurements of Turbulent Phenomena in the Surface Layer with an Ultrasonic Anemometer
(American Meteorological Society, 2006)Ultrasonic anemometers are widely used to investigate turbulence in the surface layer. Some of their advantages are high-frequency sampling, the ability to work for long periods without a resident operator (even in adverse ... -
The Closure of the Ocean Mixed Layer Temperature Budget Using Level-Coordinate Model Fields
(American Meteorological Society, 2006)Entrainment is an important element of the mixed layer mass, heat, and temperature budgets. Conventional procedures to estimate entrainment heat advection often do not permit the closure of heat and temperature budgets ... -
Identification of the Melting Layer through Dual-Polarization Radar Measurements at Vertical Incidence
(American Meteorological Society, 2006)Features of the melting layer of precipitation such as height and thickness are important in many meteorological applications. Doppler radar observations with a vertically pointing antenna have often been used in order to ... -
Comparison of Wake Model Simulations with Offshore Wind Turbine Wake Profiles Measured by Sodar
(American Meteorological Society, 2006)This paper gives an evaluation of most of the commonly used models for predicting wind speed decrease (wake) downstream of a wind turbine. The evaluation is based on six experiments where free-stream and wake wind speed ... -
Satellite Measurement of Stratospheric Winds and Ozone Using Doppler Michelson Interferometry. Part II: Retrieval Method and Expected Performance
(American Meteorological Society, 2006)This paper is about the retrieval of horizontal wind and ozone number density from measurement simulations for the Stratospheric Wind Interferometer for Transport Studies (SWIFT). This instrument relies on the concept of ... -
A Comparative Study of Rainfall Retrievals Based on Specific Differential Phase Shifts at X- and S-Band Radar Frequencies
(American Meteorological Society, 2006)A comparative study of the use of X- and S-band polarimetric radars for rainfall parameter retrievals is presented. The main advantage of X-band polarimetric measurements is the availability of reliable specific differential ... -
An Improvement to the High-Spectral-Resolution CO2-Slicing Cloud-Top Altitude Retrieval
(American Meteorological Society, 2006)An improvement to high-spectral-resolution infrared cloud-top altitude retrievals is compared to existing retrieval methods and cloud lidar measurements. The new method, CO2 sorting, determines optimal channel pairs to ... -
Validation of the AATSR Meteo Product Sea Surface Temperature
(American Meteorological Society, 2006)The Advanced Along Track Scanning Radiometer (AATSR) Sea Surface Temperature (SST) Meteo product, a fast-delivery level-2 product at 10 arc min spatial resolution, has been available from the European Space Agency (ESA) ... -
The Impact of Spectral Nudging on Cloud Simulation with a Regional Atmospheric Model
(American Meteorological Society, 2006)The impact of spectral nudging on cloud simulation with a regional atmospheric model was examined. Simulated cloudiness of the Regional Model (REMO) and the Spectrally Nudged REMO (SN-REMO) were intercompared and evaluated ... -
Satellite Measurement of Stratospheric Winds and Ozone Using Doppler Michelson Interferometry. Part I: Instrument Model and Measurement Simulation
(American Meteorological Society, 2006)This paper presents an instrument model and observation simulations for the measurement of stratospheric winds and ozone concentration using a satellite instrument employing imaging and the Doppler Michelson interferometery ... -
First Three Years of the Microwave Radiometer aboard Envisat: In-Flight Calibration, Processing, and Validation of the Geophysical Products
(American Meteorological Society, 2006)The Envisat microwave radiometer is designed to correct the satellite altimeter data for the excess path delay resulting from tropospheric humidity. Neural networks have been used to formulate the inversion algorithm to ...