Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If you need an accessible version of this item please contact JSTOR User Support

Equations for Potential Annual Direct Incident Radiation and Heat Load

Bruce McCune and Dylan Keon
Journal of Vegetation Science
Vol. 13, No. 4 (Aug., 2002), pp. 603-606
Published by: Wiley
Stable URL: http://www.jstor.org/stable/3236745
Page Count: 4
  • Download ($42.00)
  • Subscribe ($19.50)
  • Cite this Item
If you need an accessible version of this item please contact JSTOR User Support
Equations for Potential Annual Direct Incident Radiation and Heat Load
Preview not available

Abstract

Estimation of potential annual direct incident radiation has traditionally required numerical integration with simulation models. As an alternative, we present convenient equations for use in spreadsheet, GIS, and database applications. Input variables are latitude, slope, and aspect. The equations apply to 0-60° north latitude, slopes from 0-90°, and all aspects. By transforming aspect, the equations can also be applied as an index of heat load, symmetrical about a northeast to southwest axis.

Page Thumbnails

  • Thumbnail: Page 
603
    603
  • Thumbnail: Page 
604
    604
  • Thumbnail: Page 
605
    605
  • Thumbnail: Page 
606
    606