Scheduled Downtime
On Tuesday 24 October 2023 @ 5pm MT the forums will be in read only mode in preparation for the downtime. On Wednesday 25 October 2023 @ 5am MT, this website will be down for maintenance and expected to return online later in the morning.
Normal Operations
The forums are back online with normal operations. If you notice any issues or errors related to the forums, please reach out to help@ucar.edu

SST Perturbations

I am wondering if some one can help me to generate ensemble runs using CAM4. I run the model from 1980 to 2010 with prescribed SST and now I want to make 5 or 6 more runs of CAM4 with the same setting but with some perturbation. I know there is "pertim" option in CAM for the perturbation in initial conditions (ICs) but my control runs span around 20 years and therefore perturbation in the ICs are not useful for me. I want to perturbed SST or sea (boundary condition) to make ensemble runs I guess or any other way ? I have heard about AMIP runs of ensemble CAM4 but there is no information on Internet about how these ensemble members are generated.

Siraj
 
Top