[ecco-support] [EXTERNAL] enquiry about ECCO data and gcmfaces

[Zhang, Hong (US 398K)]

On Jul 9, 2020, at 5:46 AM, Fanglou Liao <fanglou.liao at unswalumni.com<mailto:fanglou.liao at unswalumni.com>> wrote:

Hi ECCO team

May I aks whether there has been a similar file to v4_basin.bin for ECCOv5 Alpha?

Hi Fanglou,
The file for llc270 basin mask is
https://ecco.jpl.nasa.gov/drive/files/Version5/Alpha/doc/basin_masks_llc270.bin
also, could you please let me know wethere there is a gcmfaces function transforming eastward and nortwhard componnets to the native ECCO grid, that is has the reverse function to calc_UEVNfromUXVY? I did not find it in the gcmfaces toolbox that I have.

You can rotate back from uE/vN to get uX/vY, just reverse of
https://github.com/MITgcm/gcmfaces/blob/master/gcmfaces_calc/calc_UV_zonmer.m#L23
https://github.com/MITgcm/gcmfaces/blob/master/gcmfaces_calc/calc_UV_zonmer.m#L24
but uX/vY is on tracer point, still need to figure out how to put onto velocity point.

Hong
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