STUDIES OF DAYTIME RADIATION FROM TIROS.
Abstract
Analysis of a sample of wintertime data from TIROS IV over the United States shows that snow cover and a lowlevel temperature inversion tend to mask the relationship between cloudiness and Channel 2 (8-12 microns) temperature. However, both Channel 3 (0.2-6.0 microns) and Channel 5 (0.55-0.75 micron) describe the cloudiness well. For areas with overcast stratiform cloudiness, data from the solar channels of TIROS III and IV are compared with reports of cloud-ceiling height. High clouds and low-based clouds can be readily distinguished from the radiation data on the basis of low and high albedos, respectively. However, no distinct relation between albedo and ceiling height is evident for the intermediate range of albedos (40 to 60 percent for Channel 5 and 30 to 50 percent for Channel 3). Variations in the solar reflectance measurements with changes in the viewing geometry could not be determined from a sample of closed-mode data because of apparent errors in rectification. A brief resume of contractual work described in previous scientific reports is given. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1965
- Accession Number
- AD0614927
Entities
People
- Paul A. Davis
- William Viezee
Organizations
- SRI International