As part of a diagnostic subproject, we present various aspects of the cyclone climatologies and intraseasonal variability simulated by models participating in the Atmospheric Model Intercomparison Project (AMIP).
The geographical distribution of the Northern Hemisphere and the Southern Hemisphere winter cyclone frequencies are presented and compared to the corresponding statistics obtained from observations.
The interannual variability of the simulated climatologies is examined
by computing the year-to-year changes in the number of simulated cyclones
as a function of central pressure. The simulated interannual variability
is compared to the observed variability during the AMIP period, 1979-1988.