Archive for the ‘Uncategorized’ Category

How big is the uncertainty in the global temperature trend?

The global temperature record shows strong serial correlation. This boosts the uncertainty in the slope of the global warming trend. Here the uncertainty in the trend is derived using one of the satellite datasets. warming in the satellite era Data from satellites have been used to construct a global temperature record beginning in December 1978. [...]

December 8, 2009   Posted in: Climate, Uncategorized  2 Comments

Flux Towers: Part I

Most solar energy absorbed at the earth’s surface is radiated back into space. For every high energy solar photon absorbed, about 20 degraded thermal photons are eventually radiated back. Ecosystems hitch a ride on this process. The starting point is of course plant photosynthesis which converts sunlight into chemical energy:В  . The reverse process (respiration, [...]

September 24, 2009  Tags: , , ,   Posted in: Carbon, Forests, Uncategorized  One Comment