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Assessing the global environmental sources driving the geobiosphere: A revised emergy baseline

Mark T. Brown and Sergio Ulgiati

Ecological Modelling, 2016, vol. 339, issue C, 126-132

Abstract: The empower that is derived from solar radiation, tidal momentum and geothermal sources drives the productive processes of the geobiosphere and is responsible for developing gradients of potential energy transformed into secondary energy and tertiary sources. In this paper we establish the geobiosphere emergy baseline (GEB) based on earlier methods proposed by Odum (2000) and refinements by Brown and Ulgiati (2010). After revising the solar exergy input and our previous interpretation of the sources and magnitudes of geothermal exergy, we compute a revised solar equivalent exergy and solar equivalence ratios (SERs) of geothermal and tidal inputs to the geobiosphere dynamic.

Keywords: Emergy; Geobiosphere emergy baseline; Global exergy sources (search for similar items in EconPapers)
Date: 2016
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Handle: RePEc:eee:ecomod:v:339:y:2016:i:c:p:126-132