Small volcanic eruptions partly explain 'warming hiatus'
| Small volcanic eruptions partly explain 'warming hiatus'13-01-2015 01:04 | |
| orogenicman★☆☆☆☆ (57) |
Interesting article: http://www.sciencedaily.com/releases/2015/01/150109132808.htm Date: January 9, 2015 Source: DOE/Lawrence Livermore National Laboratory Summary: The "warming hiatus" that has occurred over the last 15 years has been caused in part by small volcanic eruptions. Scientists have long known that volcanoes cool the atmosphere because of the sulfur dioxide that is expelled during eruptions. Droplets of sulfuric acid that form when the gas combines with oxygen in the upper atmosphere can persist for many months, reflecting sunlight away from Earth and lowering temperatures at the surface and in the lower atmosphere. New research further identifies observational climate signals caused by recent volcanic activity. 'The difference between a Miracle and a Fact is exactly the difference between a mermaid and seal. It could not be expressed better.' -- Samuel "Mark Twain" Clemens |
| 13-01-2015 05:56 | |
Abraham3 ★★☆☆☆(256) |
I wonder what Dr Ward would say. |
| 13-01-2015 08:55 | |
| orogenicman★☆☆☆☆ (57) |
That question had occurred to me as well. |
| 13-01-2015 11:22 | |
| Surface Detail★★★★☆ (1673) |
But what about the sea temperatures? There doesn't seem to have been any slowdown in the rate at which global sea levels are rising, which would indicate that, as far as sea temperatures go, there has been no "hiatus". Why would a reduction in insolation due to volcanic aerosols slow land warming but not sea warming? |
| 13-01-2015 13:13 | |
| Abraham3★★☆☆☆ (256) |
He did say "in part". The cooling effects of large eruptions has been seen in the ocean data. The effect this article is talking about may well have been masked by the accelerated deep ocean warming caused by the circulation change beginning at the same point. That effect caused significant surface cooling. Deep water warmed... while SST leveled off: 
Edited on 13-01-2015 13:21 |
| 29-01-2015 12:42 | |
| greyviper☆☆☆☆☆ (44) |
was there a hiatus to the warming? don't think that small volcanic eruptions can affect that. |
| 29-01-2015 14:32 | |
| orogenicman★☆☆☆☆ (57) |
The evidence above suggests otherwise. Do you have anything that counters the above research? |
| 11-10-2015 19:52 | |
| Madison☆☆☆☆☆ (22) |
Would like to see the graphs posted in this thread be updated with the newest data which take the 2015 El Nino into account. So, without the slowdown caused by volcanic activity, the 2015 records would have been even more dramatic? Interesting. |
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