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The geobiosphere emergy baseline: A synthesis

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  • Brown, Mark T.
  • Campbell, Daniel E.
  • De Vilbiss, Christopher
  • Ulgiati, Sergio

Abstract

The concept of emergy defined as the available energy (or exergy) of one form used up directly and indirectly to produce an item or action (Odum, Environmental Accounting Emergy and Environmental Decision Making, John Wiley & Sons, Inc., 1996) requires the specification of a uniform solar equivalent exergy reference, or geobiosphere emergy baseline (GEB). Three primary exergy sources of different origins interact to drive processes within the geobiosphere. Each of these sources are expressed in solar equivalent exergy from which, all other forms of energy can be computed, so that they may be expressed as emergy in units of solar emjoules. If emergy practitioners reference their work to a single agreed-upon baseline, then all research products resulting from the application of the emergy approach will be inherently consistent and valid comparisons can then be made easily. In this paper, we synthesize information from three new calculation procedures of the emergy baseline for the geobiosphere and propose a unified solution.

Suggested Citation

  • Brown, Mark T. & Campbell, Daniel E. & De Vilbiss, Christopher & Ulgiati, Sergio, 2016. "The geobiosphere emergy baseline: A synthesis," Ecological Modelling, Elsevier, vol. 339(C), pages 92-95.
    • Handle: RePEc:eee:ecomod:v:339:y:2016:i:c:p:92-95
    DOI: 10.1016/j.ecolmodel.2016.03.018
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    References listed on IDEAS

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    1. Valero, Alicia & Valero, Antonio & Martínez, Amaya, 2010. "Inventory of the exergy resources on earth including its mineral capital," Energy, Elsevier, vol. 35(2), pages 989-995.
    2. Brown, Mark T. & Ulgiati, Sergio, 2010. "Updated evaluation of exergy and emergy driving the geobiosphere: A review and refinement of the emergy baseline," Ecological Modelling, Elsevier, vol. 221(20), pages 2501-2508.
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    5. Campbell, Daniel E., 2016. "Emergy baseline for the Earth: A historical review of the science and a new calculation," Ecological Modelling, Elsevier, vol. 339(C), pages 96-125.
    6. Brown, Mark T. & Ulgiati, Sergio, 2016. "Assessing the global environmental sources driving the geobiosphere: A revised emergy baseline," Ecological Modelling, Elsevier, vol. 339(C), pages 126-132.
    7. De Vilbiss, C. & Brown, M.T. & Siegel, E. & Arden, S., 2016. "Computing the geobiosphere emergy baseline: A novel approach," Ecological Modelling, Elsevier, vol. 339(C), pages 133-139.
    8. Siegel, Eric & Brown, Mark T. & De Vilbiss, Chris & Arden, Sam, 2016. "Calculating solar equivalence ratios of the four major heat-producing radiogenic isotopes in the Earth's crust and mantle," Ecological Modelling, Elsevier, vol. 339(C), pages 140-147.
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