Direct solar radiation on various slopes from 0 to 60 degrees north latitude.

John Buffo; Leo J. Fritschen; James L. Murphy

Treesearch

Direct solar radiation on various slopes from 0 to 60 degrees north latitude.

Informally Refereed

Authors:

John Buffo, Leo J. Fritschen, James L. Murphy

Year:

1972

Type:

Research Paper

Station:

Pacific Northwest Research Station

Source:

Res. Pap. PNW-RP-142. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 75 p

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Download (PDF 3.04 MB): https://research.fs.usda.gov/download/treesearch/26360.pdf

Abstract

Direct beam solar radiation is presented in graphical and tabular form for hourly, daily, and yearly values for seven slopes on each of 16 aspects from the Equator to 60 degrees north in 10-degree increments. Theoretical equations necessary for the calculations are given. Solar altitude and azimuth during the day and year are also presented for the same latitude.

Keywords

solar radiation, slopes, aspects

Citation

Buffo, John; Fritschen, Leo J.; Murphy, James L. 1972. Direct solar radiation on various slopes from 0 to 60 degrees north latitude. Res. Pap. PNW-RP-142. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 75 p