The Lagrangian model ATTILA (Atmospheric Tracer Transport In a LAgrangian
model) has been developed to treat the global-scale transport of passive
trace species in the atmosphere within the framework of a general circulation
model (GCM). ATTILA runs online within the GCM ECHAM4 and uses the GCM
produced wind field to advect the centroids of 80.000 to 180.000 constant
mass air parcels into which the model atmosphere is divided. Each trace
constituent is thereby represented by a mass mixing ratio in each parcel.
ATTILA contains state-of-the-art parameterizations of convection, turbulent
boundary layer mixing, and inter-parcel transport and provides an algorithm
to map the tracer concentrations from the trajectories to the ECHAM model
A description of the model including results from passive tracer experiments
can be found in
Further publications are in preparation.
C. Reithmeier and R. Sausen, 2000: ATTILA - Atmospheric Tracer Transport
in a Lagrangian Model, Report No. 141, Institut für Physik der Atmosphäre,
DLR - Oberpfaffenhofen, 82234 Wessling, Germany. Available via email@example.com
or download zipped ps-File (490 kB) here. Or
have a look at the abstract.
Created by Christian
Reithmeier. Last modified: 24.04.2001