“Piggybacking” clouds to analyze cloud scale parameterization uncertainty
(B07)
Subject Area
Atmospheric Science
Mathematics
Term
from 2015 to 2024
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 257899354
To represent cloud microphysical and associated small scale dynamical processes weather models require parameterizations for these subgrid-scale phenomena. These schemes are subject to large uncertainties due to their simplificaction assumptions and their numerical formulations. To estimate the uncertainty of an indi-vidual parameterization, but also its impact on the larger scale dynamics, this project will apply the "piggy-backing" technique to both self-consistent gridscale cloud and precipitation schemes as well as convection parameterizations (individually and combined). For this purpose, a generalised "piggybacking" interface will be developed, which will allow the separation of the direct impact of an individual parameterization as well as the feedback implications.
DFG Programme
CRC/Transregios
