Archiv: troposphere


01.10.2018 - 19:05 [ Nature.com ]

Declining solar activity linked to recent warming

(6.10.2010) An analysis of satellite data challenges the intuitive idea that decreasing solar activity cools Earth, and vice versa. In fact, solar forcing of Earth’s surface climate seems to work the opposite way around — at least during the current Sun cycle. (…)

Contrary to expectations, the net amount of solar energy reaching Earth’s troposphere — the lowest part of the atmosphere — seems to have been larger in 2007 than in 2004, despite the decline in solar activity over that period.

The spectral changes seem to have altered the distribution of ozone molecules above the troposphere.

19.08.2018 - 19:23 [ Nature.com ]

Declining solar activity linked to recent warming

(6.10.2010) An analysis of satellite data challenges the intuitive idea that decreasing solar activity cools Earth, and vice versa. In fact, solar forcing of Earth’s surface climate seems to work the opposite way around — at least during the current Sun cycle. (…)

Contrary to expectations, the net amount of solar energy reaching Earth’s troposphere — the lowest part of the atmosphere — seems to have been larger in 2007 than in 2004, despite the decline in solar activity over that period.

The spectral changes seem to have altered the distribution of ozone molecules above the troposphere.

19.08.2018 - 15:51 [ Massachusetts Insitute of Technology ]

Study: Hole in ionosphere is caused by sudden stratospheric warming

(6.8.2018) Geospace research has long established that certain changes in the atmosphere are caused by the sun’s radiation, through mechanisms including solar wind, geomagnetic storms, and solar flares. (…)

One of the more scientifically interesting large-scale atmospheric events is called a sudden stratospheric warming (SSW), in which enormous waves in the troposphere — the lowermost layer of the atmosphere in which we live — propagate upward into the stratosphere. These planetary waves are generated by air moving over geological structures such as large mountain ranges; once in the stratosphere, they interact with the polar jet streams.