The Energy Budget at the Earth's Surface: An Experimental Study of Air Flow in a Corn Plant-Air Layer
Abstract
Data are processed to provide the characteristics of air flow in the corn plant-air layer. From wind velocity measurements at 130, 110, 90, and 50-cm. heights, the shearing stress, friction velocity, exchange coefficient, and mixing length are calculated for the respective heights. The data indicate that the height dependence of shearing stress, friction velocity, and exchange coefficient can be expressed as an exponential function of height. Near the ground, the mixing length increased linearly with increment of height above the ground (constant of proportionality = 0.4). 1/ Contribution from the Soil and Water Conservation Research Division, Agricultural Research Service, USDA, in cooperation with the Department of Agronomy, Cornell University. The work was supported in part by the Meteorology Department, U. S. Army Electronics Research + Development Activity, Fort Huachuca, Arizona. Presented 4 April 1963 to the 5th Conference on Agricultural Meteorology in Lakeland, Florida. Dept. of Agronomy Series Paper No. 633.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1963
- Accession Number
- AD0424162
Entities
People
- James L. Wright
- Zenbei Uchijima
Organizations
- Agricultural Research Service