https://gpm.nasa.gov/data/directory

https://disc.gsfc.nasa.gov/datasets/GPM_3IMERGHHE_06/summary?keywords=%22IMERG%20Early%22

32,7.5,40,16.6

1. download link list from https://disc.gsfc.nasa.gov/datasets/GPM_3IMERGHHE_06/summary?keywords=early
2. copy link to "url.txt"
3. using  wget commands to download
4. @Extract_GPM_hourly.py
