Journal of Applied Meteorology: Recent submissions
Now showing items 4001-4020 of 6019
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An Independent Statistical Reevaluation of the South African Hygroscopic Flare Seeding Experiment
(American Meteorological Society, 2000)The original statistical evaluation of the South African hygroscopic flare seeding experiment described by Mather et al. focused on the amount of radar-estimated rain produced by randomly seeded and unseeded convective ... -
Correcting Propagation Effects in C-Band Polarimetric Radar Observations of Tropical Convection Using Differential Propagation Phase
(American Meteorological Society, 2000)A propagation correction algorithm utilizing the differential propagation phase (?dp) was developed and tested on C-band polarimetric radar observations of tropical convection obtained during the Maritime Continent ... -
Determination of Ice Water Path and Mass Median Particle Size Using Multichannel Microwave Measurements
(American Meteorological Society, 2000)The method of simultaneously retrieving ice water path and mass median diameter using microwave data at two frequencies is examined and implemented for tropical nonprecipitating clouds. To develop the retrieval algorithm, ... -
On the Application of a Lagrangian Particle–Puff Model to Elevated Sources in Surface Layers with Neutral Stability
(American Meteorological Society, 2000)A Lagrangian particle?puff model is presented for predicting the statistical properties of tracers dispersing from elevated sources into surface layers with neutral stability. The model is based upon F. A. Gifford?s ... -
Boundary Layer Height and Entrainment Zone Thickness Measured by Lidars and Wind-Profiling Radars
(American Meteorological Society, 2000)The authors examine measurements of boundary layer height zi and entrainment zone thickness observed with two lidars and with a radar wind profiler during the Flatland96 Lidars in Flat Terrain experiment. Lidar backscatter ... -
Numerical Simulation of a 4-Day Early Spring Storm Period in the Black Hills
(American Meteorological Society, 2000)This paper illustrates the potential for mesoscale models to depict the distribution of precipitation in orographic situations. The study covers a 4-day time period in April 1995. The domain of the numerical model covers ... -
A New Method of Observed Rainfall Assimilation in Forecast Models
(American Meteorological Society, 2000)A method to assimilate observed rain rates in the Tropics for improving initial fields in forecast models is proposed. It consists of a 6-h integration of a numerical forecast model; the specific humidity at every time ... -
An Analysis of Exit-Flow Drainage Jets over the Chesapeake Bay
(American Meteorological Society, 2000)Synthetic aperture radar has shown great promise in detecting surface roughness patterns generated by atmospheric and oceanic features. Those roughness patterns that are the result of sea surface wind stress may be analyzed ... -
Global Soundings of the Atmosphere from ATOVS Measurements: The Algorithm and Validation
(American Meteorological Society, 2000)The International Advanced Television and Infrared Observation Satellite Operational Vertical Sounder (ATOVS) Processing Package (IAPP) has been developed to retrieve the atmospheric temperature profile, moisture profile, ... -
The Relative Importance of Warm Rain and Melting Processes in Freezing Precipitation Events
(American Meteorological Society, 2000)The importance of warm rain and melting processes in freezing precipitation events is investigated by analyzing 972 rawinsonde soundings taken during freezing precipitation. The soundings cover regions of the United States ... -
An Experimental Technique for Testing the Validity of Cumulus Cloud Parameterizations for Longwave Radiation Calculations
(American Meteorological Society, 2000)Cumulus cloud bulk geometry, size, and spatial distributions have long been recognized as important factors for longwave radiative transfer under broken cloud conditions. Most current climate models, however, still ignore ... -
Results of the Thailand Warm-Cloud Hygroscopic Particle Seeding Experiment
(American Meteorological Society, 2000)A randomized, warm-rain enhancement experiment was carried out during 1995?98 in the Bhumibol catchment area in northwestern Thailand. The experiment was conducted in accordance with a randomized, floating single?target ... -
Estimating Missing Weather Data for Agricultural Simulations Using Group Method of Data Handling
(American Meteorological Society, 2000)Contacting weather stations via modems to obtain weather data for crop simulations has become a common practice. Users sometimes encounter gaps in these data, and techniques are needed to estimate weather variables for ... -
An Operational, Diagnostic Surface Energy Budget Model
(American Meteorological Society, 2000)In recent years, there has been a growing appreciation of the importance of land?atmosphere interactions in determining the state of the boundary layer. To examine this phenomenon in more detail, a new technique has been ... -
Toward More Accurate Retrievals of Ice Water Content from Radar Measurements of Clouds
(American Meteorological Society, 2000)There has been considerable discussion concerning the accuracy of values of ice water content (IWC) in ice clouds derived from measurements of radar reflectivity (Z). In this paper, the various published relationships that ... -
Initial Validation of the Global Precipitation Climatology Project Monthly Rainfall over the United States
(American Meteorological Society, 2000)The Global Precipitation Climatology Project (GPCP) established a multiyear global dataset of satellite-based estimates of monthly rainfall accumulations averaged over a grid of 2.5° ? 2.5° geographical boxes. This paper ... -
Instrumental Uncertainties in Z–R Relations
(American Meteorological Society, 2000)Intercomparisons among three different sensors for ground-based measurement of drop size distributions are presented: the Joss?Waldvogel distrometer, the optical spectro-pluviometer, and the precipitation occurrence sensor ... -
Temporal Variations of Land Surface Microwave Emissivities over the Atmospheric Radiation Measurement Program Southern Great Plains Site
(American Meteorological Society, 2000)Land surface microwave emissivities are important geophysical parameters for atmospheric, hydrological, and biospheric studies. This study estimates land surface microwave emissivity using an atmospheric microwave radiative ... -
Estimating Moisture Profiles Using a Modified Power Law
(American Meteorological Society, 2000)Using first principles, it is shown that the vertical variation of the mixing ratio can be approximated by a power law if the relative humidity is also expressed in terms of a power law. Nevertheless, variability in the ... -
Anisotropy of Land Surface Skin Temperature Derived from Satellite Data
(American Meteorological Society, 2000)The land skin temperature, an important feature for agricultural monitoring, convective processes, and the earth?s radiation budget, is monitored from limited-view satellite imagers. The angular dependence of this parameter ...