Potential instability of gas hydrates along the chilean margin due to ocean warming

Giulia Alessandrini, Umberta Tinivella, Michela Giustiniani, Iván de la Cruz Vargas-Cordero, Silvia Castellaro

Resultado de la investigación: Article

2 Citas (Scopus)

Resumen

In the last few years, interest in the offshore Chilean margin has increased rapidly due to the presence of gas hydrates. We have modelled the gas hydrate stability zone off Chilean shores (from 33° S to 46° S) using a steady state approach to evaluate the effects of climate change on gas hydrate stability. Present day conditions were modelled using published literature and compared with available measurements. Then, we simulated the effects of climate change on gas hydrate stability in 50 and 100 years on the basis of Intergovernmental Panel on Climate Change and National Aeronautics and Space Administration forecasts. An increase in temperature might cause the dissociation of gas hydrate that could strongly affect gas hydrate stability. Moreover, we found that the high seismicity of this area could have a strong effect on gas hydrate stability. Clearly, the Chilean margin should be considered as a natural laboratory for understanding the relationship between gas hydrate systems and complex natural phenomena, such as climate change, slope stability and earthquakes.

Idioma originalEnglish
Número de artículo234
PublicaciónGeosciences (Switzerland)
Volumen9
N.º5
DOI
EstadoPublished - 1 may 2019

Huella dactilar

gas hydrate
warming
ocean
climate change
Intergovernmental Panel on Climate Change
slope stability
seismicity
earthquake
effect

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

Citar esto

Alessandrini, Giulia ; Tinivella, Umberta ; Giustiniani, Michela ; Vargas-Cordero, Iván de la Cruz ; Castellaro, Silvia. / Potential instability of gas hydrates along the chilean margin due to ocean warming. En: Geosciences (Switzerland). 2019 ; Vol. 9, N.º 5.
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abstract = "In the last few years, interest in the offshore Chilean margin has increased rapidly due to the presence of gas hydrates. We have modelled the gas hydrate stability zone off Chilean shores (from 33° S to 46° S) using a steady state approach to evaluate the effects of climate change on gas hydrate stability. Present day conditions were modelled using published literature and compared with available measurements. Then, we simulated the effects of climate change on gas hydrate stability in 50 and 100 years on the basis of Intergovernmental Panel on Climate Change and National Aeronautics and Space Administration forecasts. An increase in temperature might cause the dissociation of gas hydrate that could strongly affect gas hydrate stability. Moreover, we found that the high seismicity of this area could have a strong effect on gas hydrate stability. Clearly, the Chilean margin should be considered as a natural laboratory for understanding the relationship between gas hydrate systems and complex natural phenomena, such as climate change, slope stability and earthquakes.",
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Potential instability of gas hydrates along the chilean margin due to ocean warming. / Alessandrini, Giulia; Tinivella, Umberta; Giustiniani, Michela; Vargas-Cordero, Iván de la Cruz; Castellaro, Silvia.

En: Geosciences (Switzerland), Vol. 9, N.º 5, 234, 01.05.2019.

Resultado de la investigación: Article

TY - JOUR

T1 - Potential instability of gas hydrates along the chilean margin due to ocean warming

AU - Alessandrini, Giulia

AU - Tinivella, Umberta

AU - Giustiniani, Michela

AU - Vargas-Cordero, Iván de la Cruz

AU - Castellaro, Silvia

PY - 2019/5/1

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