Category URL
_null https://erddap.bco-dmo.org/erddap/categorize/standard_name/_null/index.xhtml?page=1&itemsPerPage=1000
depth https://erddap.bco-dmo.org/erddap/categorize/standard_name/depth/index.xhtml?page=1&itemsPerPage=1000
latitude https://erddap.bco-dmo.org/erddap/categorize/standard_name/latitude/index.xhtml?page=1&itemsPerPage=1000
longitude https://erddap.bco-dmo.org/erddap/categorize/standard_name/longitude/index.xhtml?page=1&itemsPerPage=1000
time https://erddap.bco-dmo.org/erddap/categorize/standard_name/time/index.xhtml?page=1&itemsPerPage=1000