10.18170/DVN/VJ4MLO Zhao-Cheng Zeng Peking University Open Research Data Platform 2023 updated retrievals for: Zeng, Z.-C., Lee, L., and Qi, C.: Optimal estimation retrieval of tropospheric ammonia from the Geostationary Interferometric Infrared Sounder onboard FengYun-4B, Atmos. Meas. Tech. Discuss. [preprint], http://doi.org/10.5194/amt-2023-12, in review, 2023. ** Retrieval data products for July and December of 2022 are available in this data repository. For a complete set of NH3 retrievals, please contact Z.-C. Zeng at zczeng@cqjj8.com for arrangement of the data transfer **