The phrase "gauge records" refers to measuring or tracking something over time in a systematic way. It can refer to collecting data or information to assess and understand a particular subject or situation. Full definition
Are long tide gauge records in the wrong place to measure global mean sea level rise? (usclivar.org)
There is one other long running tidal gauge record. (climatism.blog)
You can see that over more than 80 years of tide gauge records there is an extremely clear correlation between solar activity and sea level rise - active sun, the oceans rise. (sciencebits.com)