NASA Harmony WorkItem Failed on MUR SST

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ascherer97
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Joined: Mon Jun 01, 2026 10:44 pm America/New_York
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NASA Harmony WorkItem Failed on MUR SST

by ascherer97 » Mon Jun 01, 2026 11:07 pm America/New_York

I'm trying to download the entire time series of NASA MUR v4.2 data (ccid C2036880657-POCLOUD) in a small spatial region (-126E to -124E, 44N to 46N). I don't have access to an AWS instance in the US West 2 region. I've tried several other ways and they all seem to be running into very confusing issues.

For example, I've been trying to use the harmony subsetter, both through harmony-py but also directly from the provided URL on the PO.DAAC page. Here's an example API request that I tried:

https://harmony.earthdata.nasa.gov/C2036880657-POCLOUD/ogc-api-coverages/1.0.0/collections/all/coverage/rangeset?subset=lat(44:46)&subset=lon(-126:-124)&format=application%2Fx-netcdf4

When I run this, inevitably, many items will start to fail with:

"WorkItem failed: nasa/harmony-opendap-subsetter:1.2.4: Subsetter failed with error: 502 error retrieving: https://opendap.earthdata.nasa.gov/collections/C2036880657-POCLOUD/granules/20030217090000-JPL-L4_GHRSST-SSTfnd-MUR25-GLOB-v02.0-fv04.2.dmr.xml"

For what it's worth, I've also ran into similar server errors trying to subset directly with OPeNDAP as well. I'm leaving out those details for brevity here, but I'm wondering if they're related. I basically can't find a method that works for accessing this dataset (I'd like to avoid GUI approaches, since this is ultimately intended for a reusable script for collaborators).

If someone can either point out what I'm doing wrong or let me know if something is going on with the server, that would be amazing. I've been fighting with this one for a few days now.

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