GPM GMIN V05 Data Format


File name

PIERS-0007_B-2025.gmin.V05.txt

PIERS    Rain gauge network
         In this case, PIERS stands for Precipitation Instrument Evaluation and Research Sites, 
         named in honor of Piers Sellers — a NASA astronaut and climate scientist renowned 
         for his contributions to Earth science and space exploration.
0007_B   Rain gauge ID. Each gauge is equipped with two buckets, labeled 'A' and 'B' 
2025     Year  
gmin     Product ID (interpolated 1-min rain rates) 
V05      Version number
txt      Text format

File header

2025 PIERS 0007_B MetOne 0.254 mm

2015 PIERS 0007_B     Same as in file name 
MetOne                Gauge type
0.254 mm              Gauge bucket size

Data format

Year Mon Day Jday  Hr Min Rain[mm/h]  Lat        Lon
......................................................
2025  01  06  006  14  32   0.000  37.91287  -75.57986                                  
2025  01  06  006  14  33   0.000  37.91287  -75.57986                                  
2025  01  06  006  14  34   0.000  37.91287  -75.57986                                  
2025  01  06  006  14  35   0.000  37.91287  -75.57986                                  
2025  01  06  006  14  36   0.000  37.91287  -75.57986                                  
2025  01  06  006  14  37   2.580  37.91287  -75.57986                                  
2025  01  06  006  14  38   2.040  37.91287  -75.57986                                  
2025  01  06  006  14  39   1.680  37.91287  -75.57986                                  
2025  01  06  006  14  40   1.500  37.91287  -75.57986                                  
2025  01  06  006  14  41   1.500  37.91287  -75.57986                                  
2025  01  06  006  14  42   1.680  37.91287  -75.57986       
......................................................
2025  01  06  006  17  12   5.100  37.91287  -75.57986                                  
2025  01  06  006  17  13   4.910  37.91287  -75.57986                                  
2025  01  06  006  17  14   4.910  37.91287  -75.57986                                  
2025  01  06  006  17  15   5.100  37.91287  -75.57986                                  
2025  01  06  006  17  16  -9.999 -99.99999 -999.99999                                  
2025  01  06  006  17  17  -9.999 -99.99999 -999.99999  
......................................................
 

There are 9 data fields. 
 1) year
 2) month 
 3) day of month
 4) Julian Day of year
 5) hour in UTC 
 6) minute 
 7) rainrate [mm/h] 
  "0.000" indicates no rain, while "-9.999" represents missing data for each 1-minute interval.
 8) Latitude  in degree. missing: -99.99999
 9) Longitude in degree. missing: -999.99999