Cannot access ECCOv4 data from PODAAC via OPeNDAP

[mikejmnez]

Hi,
I am trying to access ECCOv4 model output via OPeNDAP. I have been able to in the past. But the data seems unavailable lately. I can discover the urls via CMR or Earthdata Search, but keep getting 500 errors with the message:
"DMR++ parse error: No document element found "

Here is a URL I got from Earthdata Search:

https://opendap.earthdata.nasa.gov/providers/POCLOUD/collections/ECCO%20Ocean%20Temperature%20and%20Salinity%20-%20Monthly%20Mean%20llc90%20Grid%20(Version%204%20Release%204)/granules/OCEAN_TEMPERATURE_SALINITY_mon_mean_2017-12_ECCO_V4r4_native_llc0090

normally adding .dmr works to retrieve the metadata but even that seems unavailable...

Thanks!

[PODAAC - edward.m.armstrong]

Hi Mike,

That URL now resolves to the OPeNDAP form so I assume your issues are fixed.

Sorry for not responding in a timely manner, but another suggestion is to use the podaac-data-downloader to do the subsetting on the ECCOv4 data. It is a python based tool that uses OPeNDAP on the backend to do netCDF subsetting and return the files to the user. Documentation can be found https://podaac.github.io/tutorials/quarto_text/DataSubscriberDownloader.html

[PODAAC - edward.m.armstrong]

For example, here is how podaac-data-downloader could be used for subsetting in a specific region:

% podaac-data-downloader -c ECCO_L4_TEMP_SALINITY_05DEG_DAILY_V4R4 -d ./ecco_data --start-date 2000-08-02T00:00:00Z --end-date 2000-08-05T00:00:00Z -b="-140,0,-110,33" --subset

Regards
Ed

[mikejmnez]

Thank you Ed,

Yes - as of last Friday it works again. I will look into the subsetter you suggested. I usually use pydap directly since it can deserialize the dap4 binary dap response, which is streamable, into a local netcdf file. Similar to these tutorials: https://www.opendap.org/access-along-track-sea-surface-elevation-from-nasas-swot-mission/. But it does depend on the opendap end point to be up and to be running...

Thank you again!