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Full-Text Articles in Earth Sciences
Organic Chemostratigraphic Markers Characteristic Of The (Informally Designated) Anthropocene Epoch, Michael A. Kruge
Organic Chemostratigraphic Markers Characteristic Of The (Informally Designated) Anthropocene Epoch, Michael A. Kruge
Department of Earth and Environmental Studies Faculty Scholarship and Creative Works
Recognizing the tremendous collective impact of humans on the environment in the industrial age, the proposed designation of the current time period as the Anthropocene Epoch has considerable merit. One of the signature activities during this time continues to be the intensive extraction, processing, and combustion of fossil fuels. While fossil fuels themselves are naturally-occurring, they are most often millions of years old and associated with deeply buried strata. They may be found at the surface, for example, as natural oil seeps or coal seam outcrops, but these are relatively rare occurrences. Fossil fuels and their myriad by-products become the …
Hydrological Impact Of The Potential Future Vegetation Response To Climate Changes Projected By 8 Gcms, Clement Alo, Guiling Wang
Hydrological Impact Of The Potential Future Vegetation Response To Climate Changes Projected By 8 Gcms, Clement Alo, Guiling Wang
Department of Earth and Environmental Studies Faculty Scholarship and Creative Works
This study uses offline simulations with a land surface model to explore how the future response of potential vegetation to elevated CO2 and attendant climate changes feeds back to influence surface hydrological processes. Climate changes are those projected by eight General Circulation Models (GCMs) under the SRESAlB, and the potential natural vegetation structure corresponding to the Preindustrial control and SRESAlB 2100 climate of the 8 GCMs are simulated by a dynamic global vegetation model integrated to equilibrium. For climate change forcing from each GCM, comparisons are made among three surface hydrology simulations using CLM3.0 driven with different combinations of climate …
Potential Future Changes Of The Terrestrial Ecosystem Based On Climate Projections By Eight General Circulation Models, Clement Alo, Guiling Wang
Potential Future Changes Of The Terrestrial Ecosystem Based On Climate Projections By Eight General Circulation Models, Clement Alo, Guiling Wang
Department of Earth and Environmental Studies Faculty Scholarship and Creative Works
A number of previous modeling studies have assessed the implications of projected CO2-induced climate change for future terrestrial ecosystems. However, although current understanding of possible long-term response of vegetation to elevated CO2 and CO2-induced climate change in some geographical areas (e.g., the high-latitude regions) has been strengthened by dint of accumulating evidence from these past studies, it is still weak in others. This study examines the responses of global potential natural vegetation distribution, net primary production (NPP), and fire emissions to future changes in atmospheric CO2 concentration and climate using the National Center for Atmospheric Research Community Land Model's dynamic …