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By Bente Lilja Bye | October 19th 2008 07:07 PM | 6 comments | Print | E-mail | Track Comments
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About Bente Lilja Bye

Earth science expert and astrophysicist writes about Earth observation, geodesy, climate change, geohazards, water cycle and other science related topics.

I've worked as Research Director... Full Bio

The Earth Observation Handbook explains the vital role played by Earth observation satellites in providing the information needed by governments and policymakers to make well-informed decisions for a sustainable future.

This animation of carbon dioxide (CO2) shows how our planet ‘breathes’.


The Earth Observation Handbook is produced by the Committee on Earth Observation Satellites (CEOS) and represent the space based earth observation capacity of some 30 space agencies around the world.

This edition has a particular focus on climate change and on the role of data provided by EO satellites, which are emerging as the single most important contribution to global climate observations. Note that space based observation systems rely on in-situ observations for calibration as well as basis for operations of the satellites. EO satellite data potentially contributes to more than half of the Essential Climate Variables recognised by the United Nations Framework Convention on Climate Change (UNFCCC).

Get the Handbook here.






Comments

Hatice Cullingford's picture

This is neat. Thanks for bringing it here. I agree on its importance in the study of the global climate change.


We are living in an era of sophisticated data-gathering via satellites. Thank you for the animator. I can't have enough of the Earth's images.


I wonder about the time constant of this animation. Is there a story on that?



Stellare's picture
Breathing planet explanation. If I understand your question correctly you wonder what time span it is between each data set. It is one month.




This animation of carbon dioxide (CO2) shows how our planet ‘breathes’.
Each year huge amounts of CO2 are taken up by the growing vegetation in
spring and summer and are to a large extent released again during the
following autumn and winter when part of the vegetation dies and
decays. This is seen in the animations by the up and down of the
measured CO2 once per year. By looking carefully at the animation, it
is possible to see that the CO2 levels are rising by about 0.5-1
percent from year to year. This animation is produced using Envisat SCIAMACHY
observations from 2003 to 2005.

Diminishing View's picture
This is beautiful. The earth breathing. I've heard of this but I don't know that I've actually seen it. It lends credence to the hypothesis of the Earth being an organism as a whole with life being cellular.  

Diminishing View's picture
So I've been thinking about this, what is the driver behind this? It is clearly not seasonal since both hemispheres are "breathing" together, so what is going on here?

Stellare's picture
It is in fact seasonal, but maybe not so easy to see on this graphics. Here is perhaps an enlightening explanation of the animation (from ESA):

"Each year huge amounts of CO2 are taken up by the growing vegetation in
spring and summer and are to a large extent released again during the
following autumn and winter when part of the vegetation dies and
decays. This is seen in the animations by the up and down of the
measured CO2 once per year. By looking carefully at the animation, it
is possible to see that the CO2 levels are rising by about 0.5-1
percent from year to year."

Diminishing View's picture
Yeah ok I can see it now, seasonal is the logical explanation obviously. The homogenity of the co2 levels is more than I expected, I'll take a stab and posit that this is because of the larger areas of vegetation  covered land mass in the northern hemishphere, particularly asia being the reason for this ...?

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