———————————————————————————
“We have to try to model an immensely complex
system all the way from the tropical rainforest,
the oceans, the northern hemisphere forests, the
soil – and we have no fundamental equations to do
that with,” he says.
“When we are modelling the physics of the oceans
and the atmosphere, we do have some fundamental
equations.
“We don’t have those for the living parts of the system.”
———————————————————————-
BBC NEWS
http://news.bbc.co.uk/go/pr/fr/-/2/hi/science/nature/7381250.stm
Published: 2008/05/06 08:12:52 GMT
Climate prediction: No model for success
By Roger Harrabin
Environment analyst, BBC News
Pier Luigi Vidale smiles fondly as he gazes at
the image unfolding on his screen.
It is a rare and beautiful view of Planet Earth.
Curlicues of cloud formations swirl around the
Antarctic at the bottom of the screen as if
captured by time-lapse photography.
The image resembles a view of the Earth from space, stretched full frame.
But a small yellow ball scudding along the bottom
of the screen hints at another story.
The ball is the Sun, heating the surface as it
passes and provoking a daily puff of cloud from
the Amazon rainforest in this computer-generated
climate model.
The animation comes from research led by Dr
Vidale at Reading University’s Walker Institute.
It is designed to provide long-term data to help
scientists distinguish between heating trends and
natural climatic fluctuations.