sulfate dataset with T31 resolution

[dagang_wang@uconn_edu]

Hi, everyone. I am going to run CAM3.1 at T31 resolution. After I downloaded the T31 resolution dataset, I didn't find sulfate dataset, i.e., DMS_emissions, SOx_emissions and oxid_3d. Anyone can tell me where I can get these data? Thanks

 

[strandwg]

Hi, everyone. I am going to run CAM3.1 at T31 resolution. After I downloaded the T31 resolution dataset, I didn't find sulfate dataset, i.e., DMS_emissions, SOx_emissions and oxid_3d. Anyone can tell me where I can get these data? Thanks

The DMS_emissions and oxid_3d emissions datasets are in the resolution-independent input data tar file, available from ESG at

http://www.earthsystemgrid.org/brow.../ccsm/thredds/ccsm.3.0/ccsm.3.0.input.thredds

Simply click on the "CAM & CLM data common to all resolutions" link.

The SOx emissions dataset is dependent on resolution, plus the experiment you want to run. Please let me know what sort of experiment you're planning on running.

 

[dagang_wang@uconn_edu]

Thank you for the quick response.

1) DMS_emissions and oxid_3d emissions datasets:

Following your suggestion, I clicked on the "CAM & CLM data common to all resolutions" link and get "ccsm3.0.inputdata.atm_lnd" dataset. The DMS_emissions and oxid_3d emissions datasets are for T42 resolution, i.e., DMS_emissions_64x128_c030722.nc and oxid_3d_64x128_L26_c030722.nc.
Does CAM convert the datasets from T42 to T31? But I saw that there are these kinds of dataset for T85 resolution if I click on the ".CAM & CLM data specific to T85 resolution" link. I am confused.

2) SOx emissions dataset:

I am not going to use the fully coupled CCSM3. Rather, I plant to run the CAM-CLM with the specified sea surface temperature (climatology). Could you share the SOx emissions dataset with T31 resolution for my purpose?

Thank you very much

Dagang

The DMS_emissions and oxid_3d emissions datasets are in the resolution-independent input data tar file, available from ESG at

http://www.earthsystemgrid.org/brow.../ccsm/thredds/ccsm.3.0/ccsm.3.0.input.thredds

Simply click on the "CAM & CLM data common to all resolutions" link.

The SOx emissions dataset is dependent on resolution, plus the experiment you want to run. Please let me know what sort of experiment you're planning on running.

 

[strandwg]

Thank you for the quick response.

1) DMS_emissions and oxid_3d emissions datasets:

Following your suggestion, I clicked on the "CAM & CLM data common to all resolutions" link and get "ccsm3.0.inputdata.atm_lnd" dataset. The DMS_emissions and oxid_3d emissions datasets are for T42 resolution, i.e., DMS_emissions_64x128_c030722.nc and oxid_3d_64x128_L26_c030722.nc.
Does CAM convert the datasets from T42 to T31? But I saw that there are these kinds of dataset for T85 resolution if I click on the ".CAM & CLM data specific to T85 resolution" link. I am confused.

Some of the input datasets are resolution-independent, including the DMS and oxid datasets. The model uses them as they are, so there aren't T31-specific versions for those datasets.

2) SOx emissions dataset:
I am not going to use the fully coupled CCSM3. Rather, I plant to run the CAM-CLM with the specified sea surface temperature (climatology). Could you share the SOx emissions dataset with T31 resolution for my purpose?

I believe the model (in CAM-CLM with prescribed SSTs mode) doesn't require an SOx emissions dataset. It uses one of the datasets in the resolution-independent tar file.

 

[dagang_wang@uconn_edu]

I tried running CAM at T31 resolution with T85 DMS and oxid, and Sox datasets. It is running well. Probably I misunderstood the model requirements about these dataset. I was confused by the file names, such as DMS_emmisions_64x128, DMS_emmisions_128x256. THank you very much.

Dagang

Some of the input datasets are resolution-independent, including the DMS and oxid datasets. The model uses them as they are, so there aren't T31-specific versions for those datasets.



I believe the model (in CAM-CLM with prescribed SSTs mode) doesn't require an SOx emissions dataset. It uses one of the datasets in the resolution-independent tar file.