Rainwater Harvesting for Drylands and Beyond by Brad Lancaster

Sun-Path Illustrations (southern hemisphere)

Here on Earth we experience seasonally changing paths of the sun across the sky. The more aware we are of how this plays out where we live on the planet, the more effectively we can design in cooperation with the sun for free passive winter heating & lighting, summer cooling & shading, and solar-power systems that are productive year round.

Take a look at Rainwater Harvesting for Drylands and Beyond, Volume 1, 2nd Edition, for many examples and strategies that make good use of the natural path of the sun, along with tips that enable you to do the same.

The following illustrations show the summer- and winter-solstice sun paths for latitudes 0º, 12º, 23.5º, 32º, 44º, 56º, and 68º in the southern hemisphere.







For similar illustrations for the northern hemisphere, see Rainwater Harvesting for Drylands and Beyond, Volume 1, 2nd Edition.

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Umbrella Newsletter

The Umbrella: Spring Equinox 2017

A catch-all of resources,
events, media, and more
from Brad Lancaster
Spring Equinox 2017
Around here we like to rhyme with the seasons whenever possible. In this case, that means welcoming the fast-approaching beginning of SPRING (the Vernal Equinox (in the northern hemisphere) is March 20 this year in Tucson, and marks one of only two […]

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