Above image shows that, in October 2020, the Arctic Ocean was very hot. The Copernicus image below shows temperatures averaged over the twelve-month period from November 2019 to October 2020.
Note that the shape of the recent twelve-month period is similar to the 2016 peak, when there was a strong El Niño, while in October 2020 the temperature was suppressed due to La Niña and due to low sunspots.
The image below shows how a hot Arctic Ocean distorts the Jet Stream and hot air moves all the way up to the North Pole.
Above image shows the Northern Hemisphere at November 12, 2020, with a temperature forecast of 2.0°C or 35.5°F at the North Pole at 1000 hPa at 15:00Z. On the right, jet stream crosses the Arctic Ocean (at 250 hPa). At surface level, a temperature was forecast to be 0.6°C or 33.2°F.
The image below shows temperature anomalies for November 12, 2020, with forecasts approaching 30°C.
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As the image on the right shows, temperature anomalies above 20°C were recorded over a large part of the Arctic Ocean on November 16, 2020.
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The image below shows sea surface temperature anomalies compared to 1981-2011 on the Northern Hemisphere on October 23, 2020, when anomalies off the coast of North America were as high as 10.8°C or 19.5°F (left), and on December 3, 2020, when anomalies off the coast of North America were as high as 12.7°C or 22.8°F (right).
This is not an isolated event, but a symptom of the unfolding catastrophe referred to as global warming, which threatens to remove all life from Earth.
These high sea surface temperatures speed up de Jet Stream over oceans. At this time of year, temperatures over continents are low, so there is greater ocean/land temperature difference, which further speeds up the Jet Stream where it travels over oceans toward continents. The center globe shows wind as fast as 381 km/h or 237 mph at the time (at circle).
Stronger wind results in stronger evaporation, which cools down the sea surface somewhat, as the blue areas over the Pacific Ocean indicate. Due to the strong wind, much of the moisture falls down farther on the path of the wind. The globe on the right shows 3-hour precipitation accumulation as high as 31.3 mm or 1.23 in off the west coast of North America (green circle).
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- At times, the Jet Stream becomes very strong and elongated over the North Atlantic, speeding up the flow of ocean heat along the path of Gulf Stream all the way to the Arctic Ocean;
- Overall, winds are getting stronger, speeding up ocean currents running just below the sea surface;
- Stratification of the North Atlantic results in less heat mixing down to lower parts of the ocean; and
- Increased evaporation and increased subsequent rainfall farther down the path of the Gulf Stream forms a colder freshwater lid stretched out at the sea surface from the North Atlantic to the Arctic Ocean, sealing off transfer of heat from ocean to atmosphere and consequently moving more heat just underneath the sea surface into the Arctic Ocean.
[ from earlier post ]
As the image below shows, the N2O satellite recorded a peak methane level of 2762 ppb on the morning of November 16, 2020.
As the image below shows, the MetOp-1 satellite recorded a peak methane level of 2725 ppb on the afternoon of November 18, 2020.
|Latent heat loss, feedback #14 on the Feedbacks page|
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