参考文献
==========

* `质控标识表 <https://www.emc.ncep.noaa.gov/mmb/data_processing/prepbufr.doc/table_7.htm>`_
* `Data Processing at NCEP <http://www.emc.ncep.noaa.gov/?data_processing=data_processing>`_ and `Overview talk by Keyser <https://dtcenter.org/com-GSI/users/docs/presentations/2013_tutorial/Tue_L1_Keyser_ObsProcessing.pdf>`_
* `PREPBUFR Processing at NCEP <http://www.emc.ncep.noaa.gov/mmb/data_processing/prepbufr.doc/document.htm>`_
* `PREPBUFR Report Types used by RAP analyses <http://www.emc.ncep.noaa.gov/mmb/data_processing/prepbufr.doc/table_5.htm>`_
* `PREPBUFR Report Types used by Global GFS and GDAS GSI analyses <http://www.emc.ncep.noaa.gov/mmb/data_processing/prepbufr.doc/table_2.htm>`_