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More TSI variation and big UV variance

April 26, 2013

Musings from the Chiefio

This is an interesting paper, and it is not paywalled! It looks at historical (Holocene and 1600s to date) variation in TSI Total Solar Irradiance and UV. (UV ranges from about 10 nm to about 400 nm. Then things turn to violet near 380 nm and wander on to about 700 nm for deep red, after that is IR from 700 nm down to about 1 mm when we start calling it radio, microwave, or millimeter wave depending on what we do with it and exactly how long the waves might be.)

The authors do a reconstruction. I really don’t like reconstructions all that well. Lots of opportunities to “manicure” things for effect. Yet for some things, like ancient solar data, you don’t have much choice but to ‘reconstruct’ based on something else.

The paper looks to me like it does a reasonable job of picking proxy data and…

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