[ecco-support] [EXTERNAL] reading llc_90/ECCOv4/Release4/nctiles_daily files

[19908766@qq.com]

Dear Hong and Ou,
    Thank both of you so much for your prompt help. Great to find the "read_ncfiles" function was updated to accommodate the new data. But when I downloaded the 288-line code that Ou updated on 13 May and tried to load the a r4v4 example NC file, "\release4\daily_llc90\ETAN\ETAN_2010_01_25.nc" I downloaded from https://data.nas.nasa.gov/ecco/data.php?dir=/eccodata/llc_90/ECCOv4/Release4/nctiles_daily , the code auto-added a suffix to the data file which made it to be "ETAN_2010_01_25.nc.0001.nc" and thus met with errors saying 'Variable not found (NC_ENOTVAR)' in line 79 (vv = netcdf.inqVarID(nc,fldName);). Do I need to change any parameter when running the new "read_ncfiles" function? The way I ran it in Matlab is:
>> tmp=read_nctiles_new('release4\daily_llc90\ETAN\ETAN_2010_01_25.nc','ETAN');
Look so much forward to your instructions how to use it properly.  

    Also thank Ou for the useful information on the python code, I was tempted to move from Matlab to python but haven't done it yet. I might still need some time to do the migration because all my codes with r4v3 are written in Matlab. 

Thank both of you again for your prompt and kind help.

Best regards,
Lei 



19908766 at qq.com
 
From: Wang, Ou (US 329B)
Date: 2020-11-11 02:46
To: Zhang, Hong (US 398K); ECCO support list, wider membership
CC: 我自己的邮箱; lei.han at sdu.edu.cn; Torres Gutierrez, Hector (US 334H)
Subject: Re: [EXTERNAL] [ecco-support] reading llc_90/ECCOv4/Release4/nctiles_daily files
Thanks to Hong for answering the question. We’ll have the pull request merged shortly. 
 
Lei, In addition to the Matlab package gcmfaces https://github.com/MITgcm/gcmfaces, there is a Python package called ECCOv4-py (https://github.com/ECCO-GROUP/ECCOv4-py) that can be used to analyze the ECCO v4 products. Some tutorials using ECCv4-py are available at https://github.com/ECCO-GROUP/ECCO-v4-Python-Tutorial. In the tutorials, ECCO_v4_Loading_the_ECCOv4_state_estimate_fields_on_the_native_model_grid.py gives an example about how to load the netCDF files of the ECCO V4 product. 
 
Regards,
Ou
 
 
 
From: "Zhang, Hong (US 398K)" <hong.zhang at jpl.nasa.gov>
Date: Tuesday, November 10, 2020 at 9:00 AM
To: "ECCO support list, wider membership" <ecco-support at mit.edu>
Cc: "Wang, Ou (US 329B)" <ou.wang at jpl.nasa.gov>, 我自己的邮箱 <19908766 at qq.com>, "lei.han at sdu.edu.cn" <lei.han at sdu.edu.cn>, "Torres Gutierrez, Hector (US 334H)" <hector.torres.gutierrez at jpl.nasa.gov>
Subject: Re: [EXTERNAL] [ecco-support] reading llc_90/ECCOv4/Release4/nctiles_daily files
 
 


On Nov 10, 2020, at 5:23 AM, Dimitris Menemenlis <menemenlis at jpl.nasa.gov> wrote:
 
Hi Ou, are there instructions or example programs for reading files in 
https://data.nas.nasa.gov/ecco/data.php?dir=/eccodata/llc_90/ECCOv4/Release4/nctiles_daily
 
Ou submitted a PR to fix this in May
though it isn't merged::
https://github.com/MITgcm/gcmfaces/pull/13
 
hope it helps 
Hong
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