gmodica@aer_com
Member
What is currently the highest resolution supported by any WACCM compset? What would be required to run at
WACCM supported grids
- Thread starter gmodica@aer_com
- Start date
I think that the main things missing are the initial conditions and stable settings for the dynamical core.The vast majority of runs in the past few years have been at 2 degrees, and this is in fact our only officially supported configuration. Our science liaison is currently on vacation, but he may know of some higher resolution runs (at least 1 degree).A few people have been running at much high resolution using the SE dycore (ne120, which is effectively 1/4 degree), and I have been helping out with that effort. It is still early work, though; I will be working to reduce the cost soon. I could send you some settings now if you are sure you want to try it, but it would be very much use-at-your-own-risk and expensive at the moment.
I think that the main things missing are the initial conditions and stable settings for the dynamical core.The vast majority of runs in the past few years have been at 2 degrees, and this is in fact our only officially supported configuration. Our science liaison is currently on vacation, but he may know of some higher resolution runs (at least 1 degree).A few people have been running at much high resolution using the SE dycore (ne120, which is effectively 1/4 degree), and I have been helping out with that effort. It is still early work, though; I will be working to reduce the cost soon. I could send you some settings now if you are sure you want to try it, but it would be very much use-at-your-own-risk and expensive at the moment.
gmodica@aer_com
Member
Thank you, Sean. I would be grateful for any early-stage information you are able to pass along to us at this time.Regards,George Modica
gmodica@aer_com
Member
Thank you, Sean. I would be grateful for any early-stage information you are able to pass along to us at this time.Regards,George Modica
It looks like these are the default WACCM ne120 settings for the dycore in the current development code:nu_top = 2.5e5nu = 1.0e13nu_q = 1.0e13nu_p = 1.0e13nu_div = 2.5e13hypervis_subcycle = 1hypervis_subcycle_q = 1qsplit = 1rsplit = 3se_nsplit = 20 However, as I said these are probably untested and experimental. The only users of WACCM at ne120 that I know of have run with significant code mods that are not considered ready for distribution yet (pending review).
It looks like these are the default WACCM ne120 settings for the dycore in the current development code:nu_top = 2.5e5nu = 1.0e13nu_q = 1.0e13nu_p = 1.0e13nu_div = 2.5e13hypervis_subcycle = 1hypervis_subcycle_q = 1qsplit = 1rsplit = 3se_nsplit = 20 However, as I said these are probably untested and experimental. The only users of WACCM at ne120 that I know of have run with significant code mods that are not considered ready for distribution yet (pending review).
George,Given our limited resources at NCAR, we can only support running WACCM at 1.9°x2.5°. We do not have resources to support community members running developmental versions of the model, except in cases where there is an established scientific collaboration with NCAR.
George,Given our limited resources at NCAR, we can only support running WACCM at 1.9°x2.5°. We do not have resources to support community members running developmental versions of the model, except in cases where there is an established scientific collaboration with NCAR.
gmodica@aer_com
Member
Hello Sean,I thought I would check to see if you are aware of any new developments with hi-res WACCM since I last checked back in November. Thanks.George
gmodica@aer_com
Member
Hello Sean,I thought I would check to see if you are aware of any new developments with hi-res WACCM since I last checked back in November. Thanks.George