0[-] EATM="Entire atmosphere (considered as a single layer)" Column-Integrated Mass Density [kg/(m^2)] 0(Meteorological) COLMD 14400 sec CENTER=7(US-NCEP) SUBCENTER=0 MASTER_TABLE=2 LOCAL_TABLE=1 SIGNF_REF_TIME=1(Start_of_Forecast) REF_TIME=2022-09-28T03:00:00Z PROD_STATUS=0(Operational) TYPE=1(Forecast) 0 20 1 2 0 105 0 0 1 4 200 0 0 255 0 0 20 1 2 0 105 0 0 0 1 0 0 0 4 200 0 0 0 0 0 255 0 0 0 0 0 1664334000 sec UTC 0-EATM [kg/(m^2)] 1664348400 sec UTC 0.00010595999629004 5.7252746989901e-07 0 2.2370271878832e-06 100