The phrase "station quality" refers to the level of excellence or standard that a station or place holds. It indicates how good or well-maintained a station is in terms of cleanliness, facilities, services, and overall experience. Full definition
So it isn't surprising that the long term temperature trend data doesn't seem to be significantly affected by station quality issues. (skepticalscience.com)
There can be changes in the status of station quality and some stations can be deleted and others added. (climateaudit.org)
It is the same problem we discussed in our essay on the problem of poor station quality in the U.S. dataset. (globalwarmingsolved.com)