Arrhenius's Table VII,
giving seasonal temperature changes for differing levels of CO2.
Not exact matches
Thus the first year (s)
temperature change is the most responsible for the first year (s)
change in CO2 increase, but as the
temperature influence is limited in time (a different, but constant
temperature again
gives a constant
seasonal cycle, but at a different level), the next years that will not
give a
change in increase speed anymore.
I recently
gave a talk about the powerful relationships among various co - factors including
seasonal sunlight,
seasonal temperature change, sea level, and even tectonic activity that extends back to the bipolar Quaternary ice - ages and interglacial warm periods of last 2.6 million years.
For
seasonal temperature changes, that
gives about 5 ppmv / °C, mainly from NH extra-tropical vegetation For year to year variability (1 - 3 years), that
gives 4 - 5 ppmv / °C, mainly from tropical vegetation For very long term
changes (MWP - LIA, glacial - interglacial
changes), that
gives ~ 8 ppmv / °C, mainly from the deep oceans.
Given the intimate connection between river water and widespread alluvial aquifers it is clear that there must be stong
seasonal change in «shallow groundwater»
temperature many metres below the surface.