Topography data?

[judykeystsai@gmail_com]

Hi there,I was actually looking into the data from CCSM 20C LE on ESG:https://www.earthsystemgrid.org/dataset/ucar.cgd.ccsm4.CCSM4_20C_LE.html And I need the the topography data.I'm wondering is the topography changing with time in the model? Or is it fixed and as it is in the input file?Can anyone tell me where I can get the topography data (with the same resolution as the LE has)? Thanks 

 

[strandwg]

You can use any of the datasets with "PHIS" in the name; that's surface geopotential in m 2 s-2, divide by 'g' (~9.8 m s-2) to get elevation in meters.PHIS is fixed for all times of the run. 

 

[judykeystsai@gmail_com]

Thanks for replying, StrandwgI was wondering if it is possible to know the exact value that CESM uses for g?Thanks

 

[strandwg]

<a name="52"><span style="color: #447700;">9.80616 m s-1.<br /><br /></span></a>