Saturday, February 6, 2016

{5a} The Most Beautiful Graph on Earth - A. Hessler

I've been sporadically working on my next post regarding the "Evolution of our Atmosphere," but it's challenging, I can't find a nice clean presentation to work with.  Excellent bits and pieces, none of it specifically what I'm looking for.

My favorite lead is a paper by Angela Hessler "Earth's Earliest Climate" which I'm trying to summarize -  but days are crowded and surprises may lay in wait, making it impossible to write for a while and it's been so long since my last installment I at least want to share the gold nugget I found in her paper, the following graph.

It's a wonderful collection of our planet's geophysical vital signs.  Okay, I'm not positive it's the "most" beautiful graph on Earth, beauty is in the eye of the beholder - but I am sure it's a fantastic window into the physical reality of our Earth and how the pageant of time has created the biosphere we humans take oh so for granted.  Hope to be back soon.

Earth's Earliest Climate
By: Angela M. Hessler (Chevron Energy Technology Company) © 2011 Nature Education 
Currently director of the  Deep Time Institute

thin red line, that drops dramatically and then has a couple spikes = Impact rate
doted red line = Solar luminosity
dark green line = CO2 
light green line = CH4 (methane)
red line = O2
blue line = Ocean surface temperature
Two vertical bands, in the Archean = earliest sedimentary rock formation (continent building)
Dark gray vertical bands = glacial episodes

(The moon would have formed shortly after accretion ended (the white bar), early in the Hadean)
(The reign of humanity would fit within tiniest vertical sliver at the far right end of this graph)

Citation: Hessler, A. M. (2011) Earth’s Earliest Climate. Nature Education Knowledge 3(10):24   
Lead Editor:  Figen Mekik


Wednesday, January 6, 2016
{1} Our Global Heat and Moisture Distribution Engine

Saturday, January 9, 2016
{2} Co-evolution of Minerals and Life | Dr Robert Hazen

Thursday, January 14, 2016
{3} Evolution of Carbon and our biosphere - Professor Hazen focuses on the element Carbon

Saturday, January 23, 2016
{4} Evolution-Considering Deep Time and a Couple Big Breaks

Saturday, February 6, 2016
{5a} The Most Beautiful Graph on Earth - A. Hessler

Sunday, February 7, 2016
{5b} Earth's Earliest Climate - By Angela Hessler

Sunday, February 14, 2016
{6} Evolution of Earth's Atmosphere - easy version

Thursday, February 18, 2016
{7} Our Global Heat and Moisture Distribution Engine, visualized

Friday, February 19, 2016
{8} Atmospheric Insulation Explained - appreciating our climate engine

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