NGRIP ice core continuous methane sections
Local artifacts in ice core methane data are superimposed on consistent records of past atmospheric variability. These artifacts are not related to past atmospheric history and care should be taken to avoid interpreting them as such. By investigating five polar ice cores from sites with different co...
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| Format: | Dataset |
| Language: | English |
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NSF Arctic Data Center
2016
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| Online Access: | https://dx.doi.org/10.18739/a2bv79w0x https://arcticdata.io/catalog/view/doi:10.18739/A2BV79W0X |
| Summary: | Local artifacts in ice core methane data are superimposed on consistent records of past atmospheric variability. These artifacts are not related to past atmospheric history and care should be taken to avoid interpreting them as such. By investigating five polar ice cores from sites with different conditions, we relate isolated methane spikes to melt layers and decimetre-scale variations as "trapping signal" associated with a difference in timing of air bubble closure in adjacent firn layers. |
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