It can appear in documentation for the Community Land Model , where variables like TG represent ground temperature.
To give you the most helpful text, could you tell me ? For example: Is it part of a programming assignment or script? Did you find it in a scientific dataset or research paper? tg1.txt
In environmental reports, such as those from NOAA or the DTIC , TG1 often serves as a label for a specific "Tide Gauge" or water-level measurement station used to track sea levels and currents. It can appear in documentation for the Community