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RISToward Parameterization of the Stable Boundary Layer
Publisher: American Meteorological Society
Abstract: The bulk Richardson number formula for the depth of the nocturnal boundary layer (NBL) is compared to the Wangara observational data. A correlation of 0.89 is found between the observed NBL depth and the depth calculated ...
A Simple Parcel Method for Prediction of Cumulus Onset and Area-Averaged Cloud Amount over Heterogeneous Land Surfaces
Publisher: American Meteorological Society
Abstract: The purpose of this note is to compare several methods for predicting the onset and quantitative amount of cloud cover over heterogeneous land surfaces. Among the methods tested are that of Wilde et al. (1985) and a new, ...
A Parameterization for Land–Atmosphere-Cloud Exchange (PLACE): Documentation and Testing of a Detailed Process Model of the Partly Cloudy Boundary Layer over Heterogeneous Land
Publisher: American Meteorological Society
Abstract: This paper presents a general description of, and demonstrates the capabilities of, the Parameterization for Land?Atmosphere?Cloud Exchange (PLACE). The PLACE model is a detailed process model of the partly cloudy atmospheric ...
Concerning the Relationship between Evapotranspiration and Soil Moisture
Publisher: American Meteorological Society
Abstract: Evapotranspiration observations have traditionally been scaled by potential evapotranspiration as a means of unifying the soil moisture-evapotranspiration relationship under a variety of meteorological conditions. However, ...
Soil Moisture Estimation Using GOES-VISSR Infrared Data: A Case Study with a Simple Statistical Method
Publisher: American Meteorological Society
Abstract: Five days of clear sky observations over Kansas and Nebraska are used to examine the statistical relationship between soil moisture and infrared surface temperature observations taken from a geosynchronous satellite. The ...
Effects of Spatial Variations of Soil Moisture and Vegetation on the Evolution of a Prestorm Environment: A Numerical Case Study
Publisher: American Meteorological Society
Abstract: To study the effects of spatial variations of soil moisture and coverage coverage on the evolution of a prestorm environment, the Goddard mesoscale model (GMASS) was modified to incorporate a simple evapo-transpiration ...
Evapotranspiration from Nonuniform Surfaces: A First Approach for Short-Term Numerical Weather Prediction
Publisher: American Meteorological Society
Abstract: Natural land surfaces are rarely homogeneous over the resolvable scales of numerical weather prediction models. Therefore, these models must somehow account for the subgrid variability in processes that are nonlinealy ...
Determining Soil Moisture from Geosynchronous Satellite Infrared Data: A Feasibility Study
Publisher: American Meteorological Society
Abstract: In the absence of a current capability for global routine daily soil moisture observation, an infrared technique using existing instrumentation is sought. Numerical modeling results are reported from a pilot study, the ...
Rain Estimation from Satellites: An Examination of the Griffith-Woodley Technique
Publisher: American Meteorological Society
Abstract: The Griffith-Woodley Technique (GWT) is an approach to estimating precipitation using infrared observations of clouds from geosynchronous satellites. It is examined in three ways: an analysis of the terms in the GWT ...
A Long-Lived Mesoscale Convective Complex. Part II: Evolution and Structure of the Mature Complex
Publisher: American Meteorological Society
Abstract: An eight-day episode in August 1977 is described, wherein 14 mesoscale convective complexes (MCCs) developed in the central United States, including one to the immediate Ice of the Rocky Mountains on each day of the episode. ...