clear sky

Isaac Kremer/ November 23, 2025/ / 0 comments

A sky having less than 30% cloud cover with the solar disk unobstructed. Also, the CIE standard for a reference cloudless sky condition, having the greatest luminance from the sun and least luminance 90 degrees from the sun. (Ching, 1995)

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About Isaac Kremer

IsaacKremer.com is the personal website of Isaac Kremer, MSARP, a nationally recognized leader in the Main Street Approach to commercial district revitalization with over 25 years of experience. Kremer, New Jersey's first certified Main Street America Revitalization Professional (MSARP), has served as founding executive director for organizations like Experience Princeton and the Metuchen Downtown Alliance, which won a Great American Main Street Award under his leadership. He recently became director of the Royal Oak Downtown Development Authority in Michigan.

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