Journal of Atmospheric and Oceanic Technology: Recent submissions
Now showing items 1521-1540 of 5084
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Estimating Monthly Precipitation Reconstruction Uncertainty Beginning in 1900
(American Meteorological Society, 2013)ncertainty estimates are computed for a statistical reconstruction of global monthly precipitation that was developed in an earlier publication. The reconstruction combined the use of spatial correlations with gauge ... -
Aspects of Convective Boundary Layer Turbulence Measured by a Dual-Doppler Lidar System
(American Meteorological Society, 2013)pecial designed dual-Doppler setups can be used to retrieve simultaneous measurements of two wind components with high temporal resolution in several heights throughout the atmospheric boundary layer. During a field campaign ... -
A Harmonic Approach for Calculating Daily Temperature Normals Constrained by Homogenized Monthly Temperature Normals
(American Meteorological Society, 2013)OAA released the new 1981?2010 climate normals in July 2011. These included monthly and daily normals of minimum and maximum temperature. Monthly normals were computed from monthly temperature values that were corrected ... -
A Diabatic Lagrangian Technique for the Analysis of Convective Storms. Part I: Description and Validation via an Observing System Simulation Experiment
(American Meteorological Society, 2013)diabatic Lagrangian analysis (DLA) technique for deriving potential temperature, water vapor and cloud water mixing ratios, and virtual buoyancy from three-dimensional time-dependent Doppler radar wind and reflectivity ... -
Modified Hitschfeld–Bordan Equations for Attenuation-Corrected Radar Rain Reflectivity: Application to Nonuniform Beamfilling at Off-Nadir Incidence
(American Meteorological Society, 2013)s shown by Takahashi et al., multiple path attenuation estimates over the field of view of an airborne or spaceborne weather radar are feasible for off-nadir incidence angles. This follows from the fact that the surface ... -
Lagrangian Detection of Wind Shear for Landing Aircraft
(American Meteorological Society, 2013)ecent studies have shown that aerial disturbances affecting landing aircraft have a coherent signature in the Lagrangian aerial particle dynamics inferred from ground-based lidar scans. Specifically, attracting Lagrangian ... -
Ground-Based Remote Retrievals of Cumulus Entrainment Rates
(American Meteorological Society, 2013)hile fractional entrainment rates for cumulus clouds have typically been derived from airborne observations, this limits the size and scope of available datasets. To increase the number of continental cumulus entrainment ... -
Direct Calculation of Thermodynamic Wet-Bulb Temperature as a Function of Pressure and Elevation
(American Meteorological Society, 2013)simple analytical method was developed for directly calculating the thermodynamic wet-bulb temperature from air temperature and the vapor pressure (or relative humidity) at elevations up to 4500 m above MSL was developed. ... -
A Handheld Sampler for Collecting Organic Samples from Shallow Hydrothermal Vents
(American Meteorological Society, 2013)his study describes a new handheld sampler, specially designed to be deployed by scuba divers, to collect fluid samples from shallow hydrothermal vents. The new sampler utilizes a syringe-like titanium sampling bottle with ... -
Automated Discrimination of Certain Brightness Fronts in RADARSAT-2 Images of the Ocean Surface
(American Meteorological Society, 2013)utomated classification of the signatures of atmospheric and oceanic processes in synthetic aperture radar (SAR) images of the ocean surface has been a difficult problem, partly because different processes can produce ... -
Improved Passive Microwave Retrievals of Rain Rate over Land and Ocean. Part II: Validation and Intercomparison
(American Meteorological Society, 2013)new passive microwave rainfall retrieval algorithm for the Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI) that relies on an a priori database derived from matchups between TMI brightness temperatures and ... -
Performance of a Horizontally Scanning Doppler Sonar near Shore
(American Meteorological Society, 1993)In August 1990, tests were performed to investigate the usefulness of a horizontally scanning Doppler acoustic technique in shallow water. Comparisons of radial velocity estimates from a vertical fan beam versus a horizontally ... -
Development and Testing of Instrumentation for UAV-Based Flux Measurements within Terrestrial and Marine Atmospheric Boundary Layers
(American Meteorological Society, 2013)nstrumentation packages have been developed for small (18?28 kg) unmanned aerial vehicles (UAVs) to measure momentum fluxes as well as latent, sensible, and radiative heat fluxes in the atmospheric boundary layer (ABL) and ... -
A Software Package and Hardware Tools for in situ Experiments in a Lagrangian Reference Frame
(American Meteorological Society, 2013)he Lagrangian Transport Experiment (LATEX) was developed to study the influence of coupled physical and biogeochemical dynamics at the meso- and submesoscales on the transfers of matter and heat between the coastal zone ... -
Exploration and Validation of Wave-Height Measurement Using Multifrequency HF Radar
(American Meteorological Society, 2013)or operations across a wide range of oceanographic conditions, a radar system able to operate at more than one frequency is theoretically and experimentally recommended for robust wave measurement in recent years. To obtain ... -
A Multisensor Comparison of Ocean Wave Frequency Spectra from a Research Vessel during the Southern Ocean Gas Exchange Experiment
(American Meteorological Society, 2013)btaining accurate measurements of wave statistics from research vessels remains a challenge due to the platform motion. One principal correction is the removal of ship heave and Doppler effects from point measurements. ... -
Near–Sea Surface Temperature Stratification from SVP Drifters
(American Meteorological Society, 2013)his study describes how the hull temperature (Ttop) measurements from multisensor surface velocity program (SVP) drifters can be combined with other measurements to provide quantitative information on near-surface vertical ... -
A Global View on the Swell and Wind Sea Climate by the Jason-1 Mission: A Revisit
(American Meteorological Society, 2013)n this study, a global climatology of swells and wind seas was investigated using near-10-yr collocated wind speed and significant wave height (SWH) measurements from the basic Geophysical Data Record (GDR) of the Jason-1 ... -
Lagrangian Solution for an Irrotational Progressive Water Wave Propagating on a Uniform Current
(American Meteorological Society, 2012)xperiments are conducted to measure the motion properties of water particle for the progressive water wave propagation in the presence of following and adverse uniform currents. The experimental data are used to validate ... -
Design and Sampling Characteristics of a New Airborne Aerosol Inlet for Aerosol Measurements in Clouds
(American Meteorological Society, 2013)esign of a new submicron aerosol inlet (SMAI) for airborne sampling of aerosol particles is introduced and its performance characteristics under a range of sampling conditions are presented. Analysis of inlet performance ...