Import measurement data, such as discharge, sediment yield, and nutrient export etc.
@author : Liangjun Zhu, Fang Shen
@changelog:
- 16-12-07 - lj - rewrite for version 2.0
- 17-06-26 - lj - reorganize according to pylint and google style
- 17-07-05 - lj - Using bulk operation interface to improve MongoDB efficiency.
- 17-08-05 - lj - Add Timezone preprocessor statement in the first line of data file.
- 18-02-08 - lj - compatible with Python3.
@TODO:
- Check the location of observed stations and add subbasinID field.
