CLIMATE Change Indicators: Upper Atmosphere. Changes occurring in the Lower Atmosphere (Troposphere). Arctic sea ice Glaciers Lake ice Snow cover Snowpack Growing season Plant hardiness Leaf/Bloom dates Bird wintering ranges. Global Temperatures GHG emissions
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What about the other layers of the atmosphere? Are changes occurring there?
Incoherent Scatter Radar
Wikipedia | Credit Tom Grydeland
NOAA accessed via Wikipedia
Wikipedia | Public Domain
There is more error in the lower atmosphere because there are fewer measurements made
The temperature profile indicates a DECREASE in ion temperature in the upper atmosphere above 200km
Things are heating up …
Things are cooling down …
The answer is Radiative Cooling
Lastovicka et al. “Global Change in the Upper Atmosphere.” Sciencev.314 no.5803 (24 November 2006) pg. 1253 – 1254.
Photo taken by Shun – Rong Zhang | used with permission