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The natural world. Looking pretty for 3.5b years.

Global Temperature Anomalies

Global Temperature Anomalies

Author: Hugh Bollinger/Thursday, January 4, 2018/Categories: photography, space science, sustainability, environment, climate change

          Norht American Temperarture Anomalies, 12-26-2017 to 1-4-2018 (credit: MODIS spectrometer)

A map can often tell more in a single image than many words. NASA has just released a composite image of Earth temperature measurements made by the Terra satellite at the end of the year. Strong differences in surface temperature (an anomaly) appear as tones of red or blue. Grade school kids could tell something is odd here as well as elsewhere.


According to NASA:

"the map of North America shows a weather reality—when a cold snap hits one region, warmth often bakes another one. A giant bend (meander) in the jet stream is the thread connecting warm weather west of the Rockies with the deep chill east of them. The crest of jet stream, a ridge, pushed far towards Alaska in December pulling warm tropical air along with it, while the other side of the wave, a trough, slid deep into the eastern United States, bringing dense, cold Arctic air south with it. The Rocky Mountains boxed-in the cold, densest air, serving as a barrier between the cold and warm air masses."

An additional atmospheric factor has developed in the Atlantic Ocean earlier in the week creating a 'perfect storm' resulting in a bombogenesis event stretching from Florida to Maine. The impact of that super-storm is still unfolding.



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