Sunday, March 10, 2013

Four weeks of climate data:
Northern Tropics Region #2

 Our next slice of the Tropics north of the Equator goes from 60 to 120 degrees East Longitude and comprises most of South Asia.


The coverage on land looks relatively complete.


The most noticeable trends for Winter are everything going up at the end of the 1955-1975 era and everything dropping at the beginning of this century. This pattern does not say global warming OR global cooling as much as a randomly fluctuating pattern, as good as no trend at all.
 

The Spring trends look more like a warming pattern, but not a severe one.  Each of our three methods of measuring stays in a band of about a half degree Celsius.


Summer shows a warming trend, but again of about a half degree.


Fall shows warming for sure, but not an increasing trend. The median went up .584° Celsius, more than some other seasons but not a huge change for that amount of time.

Confidence of the region warming: 99.9%
Confidence of decreasing rate: 65.8%
Change in median temperature from the 1955-1975 interval to the 1999-2010 interval: 0.50° C

We can definitely show a warming trend overall, but it is not particularly severe or does it show obvious sign of getting warmer faster.

Tomorrow, we look at the two slices that comprise most of the tropical Pacific.

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