NetCDF ToolsUI
Unidata
Graphical interface to netCDF-Java / Common Data Model
https://thredds.daac.ornl.gov/thredds/catalog/ornldaac/1015/one_degree/cru5_frost_frq_1d_1961-90/catalog.xml#1015/one_degree/cru5_frost_frq_1d_1961-90/cru5_frost_frq_1d_61-9006.nc4