ENERGY, MOMENTUM AND MASS TRANSFERS ABOVE VEGETATIVE SURFACES.
Abstract
The report describes meteorological conditions and outlines the type of data collected during two major cooperative micrometeorological field studies which were conducted at Davis, California during 1967. The first study conducted in the Spring was under the direction and sponsorship of the Atmospheric Sciences Laboratory, Ft. Huachuca, Arizona. Participating were research groups from several universities and government agencies. Fall studies involved cooperative efforts of the University and a research group from the Naval Undersea Warfare Center, San Diego, California. Reported in detail are the various radiation data gathered during the Spring study. Good agreement between measured and summations of individual components for both shortwave and longwave radiation was found. The overall radiation balance, both total incoming and net radiation, was in relatively good agreement with direct measurements made by total and net radiometers. Surface albedo appeared to vary significantly, both with solar angle and with the quality of light being received. The effect of various climatic factors on the partition of net radiation is discussed. A combination energy balance - aerodynamic approach is used to illustrate the relative importance of temperature, humidity, wind speed and the level of (R sub n + G) itself on the partition of energy at a vegetative surface. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1968
- Accession Number
- AD0670051
Entities
People
- D. L. Morgan
- F. J. Lourence
- W. O. Pruitt
Organizations
- University of California, Davis