The proxy server received an invalid
response from an upstream server.
The proxy server could not handle the request GET /dataset/dataset/partial-pressure-or-fugacity-of-carbon-dioxide-salinity-and-other-variables-collected-from-unde70/resource/2f6a9385-401d-43dc-892f-1028c5f340d0.
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.