f.cam6_3_119.FMTHIST_ne30.r328_gamma0.33_soae.nudged.001

[tilmes]

Same as https://github.com/NCAR/amwg_dev/issues/374 but with nudging to MERRA2 meteorological analysis starting in 2010-2012. The purpose of the run is to check the water vapor tape recorder with observed temperature fields.

Case directory: Locally (if still available): /glade/p/cesmdata/cseg/runs/cesm2_0/$CASE

On github: https://github.com/NCAR/amwg_dev/tree/$CASE

Sandbox: Locally (if still available): /glade/work/hannay/cesm_tags/cam6_3_119

On github: (https://github.com/ESCOMP/CAM/tree/cam6_3_119)

Diagnostics: ADF diags (if available) https://webext.cgd.ucar.edu/FLTHIST/$CASE/atm/

Contacts:

[tilmes]

@PeterHjortLauritzen I ran the MT model with nudged MERRA2 fields. The output is here: /glade/scratch/tilmes/archive/f.cam6_3_119.FMTHIST_ne30.r328_gamma0.33_soae.nudged.001 Could we run the diagnostics against the run without nudging https://github.com/NCAR/amwg_dev/issues/374 and also the water vapor tape recorder comparisons>

This may help us to identify reasons for differences in the strat. water vapor?

[tilmes]

@cecilehannay @PeterHjortLauritzen I also run the same run but with the updated dust tuning: https://acomstaff.acom.ucar.edu/tilmes/amwg/cam7/f.cam6_3_119.FMTHIST_ne30.r328_gamma0.33_soae.nudged.dst11.2010_2012-f.cam6_3_119.FMTHIST_ne30.r328_gamma0.33_soae.nudged.001.2010_2012/

The dust forcing is not processed, but it improved. We should add the variables AODVISdn and AODDUSTdn to our output list for the next runs.

The RESTOM is only slightly warmer, but it changes the SWCF and LWCF a little bit. We may be doing a bit more reduction in dust (increasing the factor, but it seems to have little effect. I can check the new F-case when it is ready.

[justin-richling]

@tilmes

ADF diags vs f.cam6_3_119.FMTHIST_ne30.r328_gamma0.33_soae.001 (#374)

Tape Recorder:

[tilmes]

@justin-richling Thanks. Could you also run the normal diagnostics to look at temperatures and clouds?

[justin-richling]

@tilmes Whoops forgot the link for the ADF diags: https://webext.cgd.ucar.edu/FMTHIST/f.cam6_3_119.FMTHIST_ne30.r328_gamma0.33_soae.nudged.001/atm/

[adamrher]

@justin-richling would you be willing to do the tape recorder plot, but for Temperature, not Q? No rush.

[justin-richling]

@adamrher I'm sure I can get a tape recorder for T, I'll take a look this afternoon

[tilmes]

@justin-richling it may be also useful to plot the seasonal cycle of the tropopause temperature TROP_T, and compare the two runs.

[tilmes]

@justin-richling as discussed yesterday, we want a line plot with the temperature and water vapor at the the 90hPa level averaged between 10N and 10S. Thanks Simone

[justin-richling]

@tilmes TROP_T does not appear to be in the history files for either case.

If the group decides I could assist in future developments, I'm always happy to contribute.

@adamrher If the line plots are desired in the ADF, I can add the code when you're finished. Although I understand what you're trying to say, but I would rather discuss my skillset in a different manner next time please.

[justin-richling]

For the tape recorder of T, I will need locations of the desired MLS and ERA5 Temp files if anybody knows where these might live.

[adamrher]

I'm told that MLS has T data. Is it not in the same files that you are grabbing the Q data from? Same for ERA5?

[justin-richling]

They just have Q (ERA5) and H20 (MLS). At least for the files called in the script I inherited. But from the WACCM meeting yesterday the MLS file I was using might not be the desired one anyways.

The files I've been using are: /glade/campaign/cgd/cas/islas/CAM7validation/MLS/mls_h2o_latNpressNtime_3d_monthly_v5.nc /glade/campaign/cgd/cas/islas/CAM7validation/ERA5/ERA5_Q_10Sto10N_1980to2020.nc

[islasimpson]

I think both of these files have come from me. MLS came indirectly from Mijeong Park and I made the zonal mean tropical average. I processed the ERA5 Q myself from the CISL RDA. I have monthly averaged T on the 0.25 degree grid on pressure levels on the CGD machines here /project/haggis/ERA5/mon/T which could be used to compute a zonal and tropical average.

[tilmes]

@justin-richling for T, the nudged run is basically MERRA2, so you don't need to plot MLS.

[justin-richling]

@tilmes and @islasimpson Perfect, thanks!