Methane at 3066 ppb (23,000 feet)

High levels of methane at 469 MHa

The MetOp image shows high methane levels over oceans on December 9, 2018, pm, at 469 mb. Levels over the Arctic Ocean in particular are very high, as the large areas solidly colored magenta indicate.

The MetOp image shows many areas where no data were available, as indicated by the color grey. The NPP images don't have as many grey areas. The other NPP image confirms very high methane levels over the Arctic Ocean on December 9, 2018 pm, closer to the surface, i.e. at 840 mb. While there still are many grey areas, the absence of data for many of them is due to altitude, since large parts of Greenland, Antarctica and the Himalayas are rather high.

As discussed in earlier posts, large amounts of methane appear to be rising from the Arctic Ocean. As the methane rises higher in the atmosphere, it moves closer to the Equator. This NPP image shows methane levels at 399 mb on December 9, 2018, pm. At this altitude, there are very few grey areas, so it's possible to get a fuller picture of where the highest levels of methane are. Ominously, methane levels as high as 3060 ppb were reached.

From the set at:

https://www.facebook.com/SamCarana/posts/10161082879890161

From the post 'Carbon dioxide emissions are rising', at:

https://arctic-news.blogspot.com/…/carbon-dioxide-emissions…