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How to realize our volcanic experiments?

G

GXJ

Ganxinjun
New Member
We are planning to run volcanic experiments (such as Tambora or Laki eruption) with interactive stratospheric aerosol formation and transport, which WACCM version would you recommend us to use? Can the WACCM version in CESM 1.2 support our experiments? And how do we add the required volcanic forcing?Thanks a lot!
 
mmills

mmills

CSEG and Liaisons
Staff member
The only released version of CESM that can do interactive stratospheric aerosols is CESM2(WACCM6). The CMIP6 DECK and historical experiments were run with CESM2(WACCM6) at two horizontal resolutions: 0.95°x1.25° and 1.8°x2.5°. Both of these resolutions are supported in the CESM2.1 release. I recommend using the latest release version of CESM2.1, currently CESM2.1.3.

Volcanic forcing is included in CESM2(WACCM6) as emissions of SO2 via the ext_frc_specifier. For the historical compsets, this includes a series of episodic eruptions. For the piControl 1850 compsets, this is a constant emission representing the average emissions from eruptions over the historical period (1850-2014).

The latest versions of the historical eruption emissions file go back to the year 850CE, so they include Tambora and Laki.
 
G

GXJ

Ganxinjun
New Member
mmills said:
The only released version of CESM that can do interactive stratospheric aerosols is CESM2(WACCM6). The CMIP6 DECK and historical experiments were run with CESM2(WACCM6) at two horizontal resolutions: 0.95°x1.25° and 1.8°x2.5°. Both of these resolutions are supported in the CESM2.1 release. I recommend using the latest release version of CESM2.1, currently CESM2.1.3.

Volcanic forcing is included in CESM2(WACCM6) as emissions of SO2 via the ext_frc_specifier. For the historical compsets, this includes a series of episodic eruptions. For the piControl 1850 compsets, this is a constant emission representing the average emissions from eruptions over the historical period (1850-2014).

The latest versions of the historical eruption emissions file go back to the year 850CE, so they include Tambora and Laki.
Click to expand...
Thanks!!
 
O

ohmpawat

ohmpawat chen
Member
mmills said:
The only released version of CESM that can do interactive stratospheric aerosols is CESM2(WACCM6). The CMIP6 DECK and historical experiments were run with CESM2(WACCM6) at two horizontal resolutions: 0.95°x1.25° and 1.8°x2.5°. Both of these resolutions are supported in the CESM2.1 release. I recommend using the latest release version of CESM2.1, currently CESM2.1.3.

Volcanic forcing is included in CESM2(WACCM6) as emissions of SO2 via the ext_frc_specifier. For the historical compsets, this includes a series of episodic eruptions. For the piControl 1850 compsets, this is a constant emission representing the average emissions from eruptions over the historical period (1850-2014).

The latest versions of the historical eruption emissions file go back to the year 850CE, so they include Tambora and Laki.
Click to expand...
Hi, I changed VolcanEESM_SO2 file via the ext_frc_specifier. I changed "VolcanEESMv3.11_SO2_850-2016_Mscale_Zreduc_2deg_c180812.nc" into "VolcanEESMv3.10_piControl_SO2_1850-2014average_2deg_c190220.nc".
Then, I got an error that " ERROR: GETFIL: FAILED to get VolcanEESMv3.10_piControl_SO2_1850-2014average_2deg_c190221.nc". It's strange that my setting is "c190220".
My compset is FCHIST, and I don't know which variable should I change. Could you help me ? Thanks!
 
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