Journal of Climate and Applied Meteorology: Recent submissions
Now showing items 41-60 of 865
-
Precipitation and the Lunar Synodic Cycle: Phase Progression across the United States
(American Meteorological Society, 1987)The question of whether there is significant variation in precipitation in the United States at the lunar synodic period (29.531 days) has been examined, based on daily precipitation data for the period 1900?80. Our results ... -
Application of Ice Nucleation Kinetics in Orographic Clouds
(American Meteorological Society, 1987)Ice nucleation by silver iodide-sodium iodide aerosol particles has been characterized in the Colorado State University isothermal cloud chamber using the techniques of chemical kinetics. Two separate mechanisms of ... -
A Modeling Study of Atmospheric Transport and Photochemistry in the Mixed Layer during Anticyclonic Episodes in Europe. Part II. Calculations of Photo-Oxidant Levels along Air Trajectories
(American Meteorological Society, 1987)A computer model for photochemical oxidant formation in the atmospheric boundary layer has been used to calculate trends in ozone formation in air masses traveling across Europe. Ozone calculations were made for some actual ... -
Assessing and Modeling the Cyclical Behavior of Rainfall in Northeast Brazil
(American Meteorological Society, 1987)There has always been a good deal of interest in the possibility of cycles being present in weather data. This article presents a class of models which allows cyclical components to be modeled explicitly. The cyclical ... -
Precipitation Characteristics of Mesoscale Convective Weather Systems
(American Meteorological Society, 1987)Precipitation from 74 mesoscale convective complexes is examined to determine the total precipitation, areal extent, and characteristic precipitation pattern of an average convective complex. The relationship between the ... -
Aircraft Observations of the Radiative and Microphysical Properties of Stratocumulus and Cumulus Cloud Fields
(American Meteorological Society, 1987)This paper reports on a series of flights that were conducted off the east coast of Australia through and over stratocumulus and fair-weather cumulus cloud fields. The CSIRO Fokker F-27 research aircraft was used to obtain ... -
Seasonal and Interannual Trends of Sierra Nevada Clouds and Precipitation
(American Meteorological Society, 1987)Seasonal and interannual variations in Sierra Nevada winter storms are discussed with reference to precipitation augmentation. Seasonal variations occur with respect to freezing level, storm type, vertical cloud distribution, ... -
Channeling and Countercurrent in the Upper Rhine Valley: Numerical Simulations
(American Meteorological Society, 1987)In the upper Rhine Valley, located in the southwest part of the Federal Republic of Germany, a pronounced channeling of the airflow is observed and occasionally also a countercurrent, although the valley is very flat and ... -
Methods for Estimating the Mean and the Standard Deviation of Wind Direction
(American Meteorological Society, 1987)In a recent paid, the author reviewed methods for estimating the mean and the standard deviation of wind direction. Some comments on this subject are now added. If large sporadic eddy fluctuations do not occur in a sampling ... -
A Bias in Skill in Forecasts Based on Analogues and Antilogues
(American Meteorological Society, 1987)A bias in skill may exist in statistical forecast methods in which the verification datum is withheld from the developmental data (cross-validation methods). Under certain circumstances this bias in skill can become ... -
Measurements of Fog Water Deposition and Their Relationships to Terrain Features
(American Meteorological Society, 1987)No abstract available. -
A Modeling Study of Atmospheric Transport and Photochemistry in the Mixed Layer during Anticyclonic Episodes in Europe. Part I: Meteorology and Air Trajectories
(American Meteorological Society, 1987)A climatological study has been carried out of the occurrence and properties of a large number of dry and sunny spells in recent summers (1976?83). The frequency of the spells, which are very favorable for atmospheric ... -
Modeling of Mountain-Valley Wind Fields in the Southern San Joaquin Valley, California
(American Meteorological Society, 1987)A dry three-dimensional mesoscale model was used to study the diurnal cycle of mountain-valley winds in the southern San Joaquin Valley during a summer day. A scheme for interpolating potential temperature was developed ... -
Satellite-Derived Maps of Snow Cover Frequency for the Northern Hemisphere
(American Meteorological Society, 1987)A satellite imagery-based Northern Hemisphere snow cover data archive was mapped for the period 1966?84: The maps were digitized in order to create the first hemispheric, spatially data-continuous climatologies of snow ... -
Drought Termination and Amelioration: Its Climatological Probability
(American Meteorological Society, 1987)The preliminary Palmer Drought Severity Index (PDSI) is calculated and disseminated operationally by the National Oceanic and Atmospheric Administration/United States Department of Agriculture's (NOAA/USDA) joint agricultural ... -
Possible Application of Bacterial Condensation Freezing to Artificial Rainfall Enhancement
(American Meteorological Society, 1987)Both gram-positive and gram-negative bacteria become excellent condensation nuclei when lyophilized to dryness. The same freeze-dry procedure does not inactivate the highly effective freezing nuclei produced by ice nucleation ... -
Seasonal Albedo of an Urban/Rural Landscape from Satellite Observations
(American Meteorological Society, 1987)The spatial distribution and seasonal variation of surface reflectance and albedo in a heterogeneous urban/rural landscape (Hartford, Conn.) was examined using 27 calibrated Landsat observations. Atmospheric effects were ... -
An Earth Outgoing Longwave Radiation Climate Model. Part I: Clear Sky Radiation
(American Meteorological Society, 1987)An Earth outgoing longwave radiation (OLWR) climate model has been constructed for a monthly average radiation budget study. The model consists of the upward radiative transfer parameterization of Thompson and Warren and ... -
Ice Crystal Production by Mountain Surfaces
(American Meteorological Society, 1987)Evidence is presented for a process of ice crystal generation in supercooled orographic clouds in contact with snow-covered mountain surfaces. Comparisons of the crystal concentrations at the surface with aircraft sampling ... -
Wind Velocities Associated with Dust Deflation Events in the Western Sahara
(American Meteorological Society, 1987)Data from eight meteorological stations in the western Sahara for the period 1 July-15 August 1974 indicate that the mean wind velocity associated with dust-raising events is about 10.5 m s?1. The mean deflation velocity ...