|
The Role of Hurricanes in the Climate System
Kevin Trenberth
NCAR
Abstract
Hurricanes are very intense but relatively short-lived features
whereas the climate deals with long-term large-scale changes.
Are hurricanes merely embroidery; part of the rich phenomena
that occur in the atmosphere, or do they occur for a reason and
act systematically to rectify the climate? The answers to
these questions are key to say how and why hurricanes change as
the climate changes. To explore the role of hurricanes in the
climate system, a detailed analysis is made of the bulk
atmospheric moisture budget of several simulated storms, with
detailed results given for Ivan in September 2004 and Katrina
in August 2005. In turn these have implications for the energy
budget. If our basic premise is correct, namely that
hurricanes do indeed play a fundamental role in climate, what
does this mean for all climate models, which do not include
these in their simulations?
Back to agenda
|