Journal of Applied Meteorology: Recent submissions
Now showing items 4201-4220 of 6019
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On Solutions of the Diffusion–Deposition Equation for Point Sources in Turbulent Shear Flow
(American Meteorological Society, 1999)The purpose of this paper is to develop analytical solutions to the three-dimensional diffusion?deposition equation for point sources in turbulent shear flow. In this paper, it is shown that the solution for the three-dimensional ... -
Record Flood-Producing Rainstorms of 17–18 July 1996 in the Chicago Metropolitan Area. Part I: Synoptic and Mesoscale Features
(American Meteorological Society, 1999)A unique rainstorm in northern Illinois produced 43 cm of precipitation in mid-July 1996, the highest 24-h precipitation amount ever recorded officially in the upper Midwest. Rains exceeding 20 cm fell over an area of 4400 ... -
An Air–Soil Layer Coupled Scheme for Computing Surface Heat Fluxes
(American Meteorological Society, 1999)An air?soil layer coupled scheme is developed to compute surface fluxes of sensible heat and latent heat from data collected at the Oklahoma Atmospheric Radiation Measurement?Cloud and Radiation Testbed (ARM?CART) stations. ... -
An Eulerian Limited-Area Atmospheric Transport Model
(American Meteorological Society, 1999)A limited-area, offline, Eulerian atmospheric transport model has been developed. The model is based on a terrain-following vertical coordinate and a mass-conserving, positive definite advection scheme with small phase and ... -
An Improved Method to Derive Surface Albedo from Narrowband AVHRR Satellite Data: Narrowband to Broadband Conversion
(American Meteorological Society, 1999)A method was investigated to estimate broadband surface shortwave albedo from the narrowband reflectances obtained by the Advanced Very High Resolution Radiometers (AVHRRs) on board the polar orbiting satellites. Field ... -
Estimation of Surface Heat Fluxes at Field Scale Using Surface Layer Versus Mixed-Layer Atmospheric Variables with Radiometric Temperature Observations
(American Meteorological Society, 1999)Radiometric surface temperature observations TR(?), near-surface meteorological/surface energy flux (METFLUX), and atmospheric boundary layer (ABL) data were collected during the Washita ?94 Experiment conducted in the ... -
Estimate of Precipitation from the Dual-Beam Airborne Radars in TOGA COARE. Part 1: The K–Z Relationships Derived from Stereo and Quad-Beam Analysis
(American Meteorological Society, 1999)The recent development of dual-beam airborne Doppler weather radar offers the possibility to perform high-resolution observations of the three-dimensional air motion and precipitation fields associated with severe weather ... -
Observations of Mixed-Phase Precipitation within a CaPE Thunderstorm
(American Meteorological Society, 1999)Various procedures for inferring hydrometeor characteristics from polarimetric radar data have indicated that regions with echoes exhibiting relatively high linear depolarization ratios along with relatively low differential ... -
Mesoscale Precipitation Fields. Part II: Hydrometeorologic Modeling
(American Meteorological Society, 1999)A hydrometeorologic forecast system (HFS) has been developed that takes advantage of new high-resolution rainfall datasets from the WSR-88D radar system, the Oklahoma Mesonet, and Oklahoma Local Analysis and Prediction ... -
Mesoscale Precipitation Fields. Part I: Statistical Analysis and Hydrologic Response
(American Meteorological Society, 1999)A statistical objective analysis (SOA) scheme was developed to adjust estimates of rainfall accumulation from the WSR-88D in central Oklahoma using rain gauge measurements from the Oklahoma Mesonetwork. Statistical parameters ... -
Estimating Cloud Type from Pyranometer Observations
(American Meteorological Society, 1999)In this paper the authors evaluate an inexpensive and automatable method to estimate cloud type at a given location during daylight hours using the time series of irradiance from a pyranometer. The motivation for this ... -
Reflectivity and Attenuation at Millimeter to Infrared Wavelengths for Advection Fogs at Four Locations
(American Meteorological Society, 1999)Recent drop size distribution data from four advection fog sites are reanalyzed for the purpose of predicting millimeter-wave and infrared to visible wavelength reflectivity and attenuation coefficients in such fogs. A ... -
Relationships between Doppler Spectral Moments within Large-Scale Cirro- and Altostratus Cloud Fields Observed by a Ground-Based 95-GHz Cloud Radar
(American Meteorological Society, 1999)In this study, data obtained from measurements with a ground-based vertical-pointing 95-GHz polarimetric cloud radar are analyzed. The investigations concentrate on the relationships between the Doppler spectral moments ... -
Microwave Properties of Frozen Precipitation around a North Atlantic Cyclone
(American Meteorological Society, 1999)Microwave brightness temperatures emanating from a North Atlantic cyclone were measured by the Special Sensor Microwave/Imager (SSM/I) on the Defense Meteorological Satellite Program satellite. As other investigators have ... -
Incorporating Satellite Observations of “No Rain” in an Australian Daily Rainfall Analysis
(American Meteorological Society, 1999)Geostationary satellite observations can be used to distinguish potential rain-bearing clouds from nonraining areas, thereby providing surrogate observations of ?no rain? over large areas. The advantages of including such ... -
Attenuation in Rain for X- and C-Band Weather Radar Systems: Sensitivity with respect to the Drop Size Distribution
(American Meteorological Society, 1999)This paper is devoted to a sensitivity study of the equation describing attenuation effects in rain for ground-based weather radar systems operating at X- or C-band wavelengths. First, the so-called attenuation equation, ... -
Particle Size Estimation in Ice-Phase Clouds Using Multifrequency Radar Reflectivity Measurements at 95, 33, and 2.8 GHz
(American Meteorological Society, 1999)Multifrequency radar measurements collected at 2.8 (S band), 33.12 (Ka band), and 94.92 GHz (W band) are processed using a neural network to estimate median particle size and peak number concentration in ice-phase clouds ... -
Observations of Ship Tracks from Ship-Based Platforms
(American Meteorological Society, 1999)Ship-based measurements in June 1994 provided information about ship-track clouds and associated atmospheric environment observed from below cloud levels that provide a perspective different from satellite and aircraft ... -
The Formation and Destruction of Inversion Layers within a Deep Valley
(American Meteorological Society, 1998)The technique of large-eddy simulations has been used to investigate thermally driven local circulations in deep valleys for a complete diurnal cycle. A soil model simulates the thermal forcing at the ground, which depends ... -
Comparison of Rain-Profiling Methods from ARMAR Data in TOGA COARE with a View to a Possible Use with the TRMM Radar
(American Meteorological Society, 1998)Rain measurements of the airborne Tropical Rainfall Measurement Mission (TRMM) radar simulator Airborne Rain-Mapping Radar in a typical event of Tropical Ocean and Global Atmosphere Coupled Ocean?Atmosphere Response ...