The proxy server received an invalid
response from an upstream server.
The proxy server could not handle the request GET /dataset/dataset/temperature-salinity-and-other-variables-collected-from-discrete-sample-and-profile-observation180/resource/10196cf3-2cff-43d0-87ea-f14c4c8ab023.
Reason: DNS lookup failure for: os-data-catalog.ngdc.noaa.gov
Additionally, a 502 Bad Gateway error was encountered while trying to use an ErrorDocument to handle the request.