British Geological Survey
We present results from a study designed to investigate how the global methane hydrate reservoir has changed through the last glacial-interglacial cycle. Bottom water conditions are derived from a series of long-integration snapshot-type HadCM3 GCM experiments that cover the last 120 kyr. We use thi...
Main Authors: | , , , , , , , , , , , , |
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Other Authors: | |
Format: | Text |
Language: | English |
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.459.8135 http://www.leicestermath.org.uk/GeoMath/pdf-files/publ2011/2011-icgh2011Final00780.pdf |
Summary: | We present results from a study designed to investigate how the global methane hydrate reservoir has changed through the last glacial-interglacial cycle. Bottom water conditions are derived from a series of long-integration snapshot-type HadCM3 GCM experiments that cover the last 120 kyr. We use this dataset to drive a 1D transient hydrate model. We first evaluate the model using sensitivity experiments against a number of hydrate bearing ODP/DSDP sites. We then explore potential initial and final steady-state inventories using Pliocene and modern boundary conditions and compare to previous studies. We then investigate how the potential volume of submarine hydrate has evolved from initial Pliocene conditions through a series of pseudo glacial cycle. We find that the potential volume increases from 7.3 × 10 6 km 3 during the Pliocene to between 7.95 |
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