Journal of Atmospheric and Oceanic Technology back issues from August 2008:
Preface
Aug 01, 2008; ... This special issue of the Journal of Atmospheric and Oceanic Technology contains articles based on papers presented at the Seventh International Symposium on Tropospheric Profiling: Needs and Technologies held in Boulder, Colorado, in June 2006. Over the past 18 yr this series of ...
Advances in Continuously Profiling the Thermodynamic State of the Boundary Layer: Integration of Measurements and Methods
Aug 01, 2008; ... ABSTRACT This paper describes advances in ground-based thermodynamic profiling of the lower troposphere through sensor synergy. The well-documented integrated profiling technique (IPT), which uses a microwave profiler, a cloud radar, and a ceilometer to simultaneously retrieve vertical ...
Mobile Lidar Profiling of Tropical Aerosols and Clouds
Aug 01, 2008; ... ABSTRACT Lidar profiling of atmospheric aerosols and clouds in the lower atmosphere has been in progress at the Indian Institute of Tropical Meteorology (IITM), Pune (18°32'N, 73°52'E, 559 m MSL), India, for more than two decades. To enlarge the scope of these studies, an eye-safe new ...
An Atmospheric Soliton Observed with Doppler Radar, Differential Absorption Lidar, and a Molecular Doppler Lidar
Aug 01, 2008; ... ABSTRACT Airborne Leandre II differential absorption lidar (DIAL), S-band dual-polarization Doppler radar (S-Pol), and Goddard Lidar Observatory for Winds (GLOW) Doppler lidar data are used, in conjunction with surface mesonet and special sounding data, to derive the structure and ...
Lidar Observations of the Vertical Aerosol Flux in the Planetary Boundary Layer
Aug 01, 2008; ... ABSTRACT The vertical aerosol transport in the planetary boundary layer (PBL) is investigated with lidars. Profiles of the vertical wind velocity are measured with a 2-µm Doppler wind lidar. Aerosol parameters are derived from observations with an aerosol Raman lidar. Both instruments ...
Horizontal-Velocity and Variance Measurements in the Stable Boundary Layer Using Doppler Lidar: Sensitivity to Averaging Procedures
Aug 01, 2008; ... ABSTRACT Quantitative data on turbulence variables aloft-above the region of the atmosphere conveniently measured from towers-have been an important but difficult measurement need for advancing understanding and modeling of the stable boundary layer (SBL). Vertical profiles of streamwise ...
In Situ Samplings and Remote Sensing Measurements to Characterize Aerosol Properties over Southeast Italy
Aug 01, 2008; ... ABSTRACT Ground-based particulate matter (PM) samplers, an XeF Raman lidar operating in the framework of the European Aerosol Research Lidar Network (EARLINET), and a sun/sky radiometer operating in the framework of the Aerosol Robotic Network (AERONET) have been used to characterize ...
Measurements of Boundary Layer Profiles with In Situ Sensors and Doppler Lidar
Aug 01, 2008; ... ABSTRACT A new in situ measurement system and lidar processing algorithms were developed for improved measurements of boundary layer profiles. The first comparisons of simultaneous Doppler lidar-derived profiles of the key turbulence statistics of the two orthogonal horizontal velocity ...
Detection of Fog and Low Cloud Boundaries with Ground-Based Remote Sensing Systems
Aug 01, 2008; ... ABSTRACT The performance of the boundary determination of fog and low stratiform cloud layers with data from a frequency-modulated continuous-wave (FMCW) cloud radar and a Vaisala ceilometer is assessed. During wintertime stable episodes, fog and low stratiform cloud layers often occur ...
Platform-Motion Correction of Velocity Measured by Doppler Lidar
Aug 01, 2008; ... ABSTRACT The NOAA/Earth System Research Laboratory (ESRL) has two coherent Doppler lidar systems that have been deployed on board research vessels to obtain data during several experiments. The instruments measure the wind velocity relative to the motion of the lidar; therefore, ...
High-Resolution Radio Acoustic Sounding System Observations and Analysis up to 20 km
Aug 01, 2008; ... ABSTRACT The first campaign-based measurements of virtual temperature in the upper-troposphere and lower-stratosphere (UTLS) region were made with the middle- and upper-atmosphere (MU) radar radio acoustic sounding system (RASS) during 4 days in August 1995. This dataset was examined in ...
Effects of Wind Field Inhomogeneities on Doppler Beam Swinging Revealed by an Imaging Radar
Aug 01, 2008; ... ABSTRACT In this work, the accuracy of the Doppler beam-swinging (DBS) technique for wind measurements is studied using an imaging radar-the turbulent eddy profiler (TEP) developed by the University of Massachusetts, with data collected in summer 2003. With up to 64 independent ...
Convective Boundary Layer Depth Estimation from Wind Profilers: Statistical Comparison between an Automated Algorithm and Expert Estimations
Aug 01, 2008; ... ABSTRACT A previous study showed success in determining the convective boundary layer depth with radar wind-profiling radars using fuzzy logic methods, and improvements to the earlier work are discussed. The improved method uses the Vaisala multipeak picking (MPP) procedure to identify ...
Evaluation of an LES-Based Wind Profiler Simulator for Observations of a Daytime Atmospheric Convective Boundary Layer
Aug 01, 2008; ... ABSTRACT The daytime atmospheric convective boundary layer (CBL) is characterized by strong turbulence that is primarily caused by buoyancy forced from the heated underlying surface. The present study considers a combination of a virtual radar and large eddy simulation (LES) techniques ...
Four-Dimensional Variational Data Analysis of Water Vapor Raman Lidar Data and Their Impact on Mesoscale Forecasts
Aug 01, 2008; ... ABSTRACT The impact of water vapor observations on mesoscale initial fields provided by a triangle of Raman lidar systems covering an area of about 200 km × 200 km is investigated. A test case during the Lindenberg Campaign for Assessment of Humidity and Cloud Profiling Systems and its ...
First-Year Operation of a New Water Vapor Raman Lidar at the JPL Table Mountain Facility, California
Aug 01, 2008; ... ABSTRACT A new water vapor Raman lidar was recently built at the Table Mountain Facility (TMF) of the Jet Propulsion Laboratory (JPL) in California and more than a year of routine 2-h-long nighttime measurements 4-5 times per week have been completed. The lidar was designed to reach ...
A Four-Year Lidar-Sun Photometer Aerosol Study at São Paulo, Brazil
Aug 01, 2008; ... ABSTRACT A backscattering lidar system, the first of this kind in Brazil, has been used to provide the vertical profile of the aerosol backscatter coefficient at 532 nm up to an altitude of 4-6 km above sea level (ASL), in a suburban area in the city of São Paulo. The lidar system has ...
Evaluating the Effects of Height-Variable Reflectivity and Antenna Sidelobes on the Radar Equation
Aug 01, 2008; ... ABSTRACT Using radar observations to quantify precipitation intensity requires the intervention of the radar equation, which converts the precipitation signal into reflectivity units. This equation generally assumes that the reflectivity is uniform within each sampling gate and that the ...