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8 % scattered by atmosphere

Soil Temperature Dynamics: Forcing. Solar energy drives the world’s climate… Of the radiation received at the surface of the atmosphere:. 8 % scattered by atmosphere . 17% reflected by clouds = f(cloud albedo). 6% reflected by earth’s surface = f (sfc albedo).

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8 % scattered by atmosphere

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  1. Soil Temperature Dynamics: Forcing Solar energy drives the world’s climate… Of the radiation received at the surface of the atmosphere: • 8 % scattered by atmosphere • 17% reflected by clouds = f(cloud albedo) • 6% reflected by earth’s surface = f (sfc albedo) • 19% absorbed by greenhouse gases (as well as longwave radiation from surface) • Leaves 46% absorbed by the earth’s surface which goes to heating the surface or evaporation. = processes altered by human activities

  2. Soil Temperature Profiles Diurnal vertical heat transmission from solar inputs  Follow downward heat pulses

  3. Heat transmission from fire event

  4. Seasonal vertical heat transmission  note dampening and lag of signal

  5. Seasonal vertical heat transmission • note convergence on annual mean T at depth • compare x- & y- axis scales with diurnal profiles

  6. Borehole Temperatures • Annual to centennial • vertical heat transmission • T record reconstruction from signal unmixing

  7. Boulder annual T record  for comparison with our field measures

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