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| Titel |
The lightning-biota climatic feedback |
| VerfasserIn |
H. Gildor, A. Shepon |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250020490
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| Zusammenfassung |
| We investigates the "lightning–biota climatic feedback" which involves an increase in
deposition of lightning-produced nitrogen compounds into ecosystems as a response to a
global temperature rise. This increases primary production on both land and ocean, which
reduces atmospheric carbon dioxide (CO2), and consequently global temperature in return.
Large uncertainties in numerous processes and parameters in this feedback exist and therefore
its importance is unclear. This feedback is investigated using a conceptual dynamical model,
including assessing its role in counteracting anthropogenic-induced warming by reducing the
rate of accumulation and concentration of atmospheric CO2. Overall, our study
suggests that this feedback is of mild strength in the climate system, but raises the
intriguing possibility that it should be considered in long-term climate simulations. |
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