How is climate forcing defined in I2000 compsets? Is it climatologically averaged, or specific to the year 2000 only?

[MS_CLM]

Hello CLM community,

I’m curious whether the I2000 compsets (such as I2000Clm50BgcCropGs and I2000Clm50Sp) average atmospheric/climate conditions over multiple years, -or if they rely on climate data specific to the year 2000.

We need to evaluate the model outputs against ERA5-Land data, so it's important to ensure the correct time-period is averaged from ERA5-Land variables.

Could someone please clarify this?

Thank you.

 

[oleson]

If you create a case based on I2000Clm50BgcCropGs with the release version of the model, and query the datm settings you will see:

DATM_CLMNCEP_YR_ALIGN: 1991
DATM_CLMNCEP_YR_START: 1991
DATM_CLMNCEP_YR_END: 2010

but of course you can change these years.

 

[slevis]

I will just add the exact way to do this in your /case directory:
"./xmlquery -p DATM"