Q: What format is used in CGEED? A: CGEED gridded data are all .tiff files. Q: How should I cite CGEED? A: Please cite the relevant reference for the gridded data used. Q: Is CGEED charging for data? A: No. CGEED is developed to promote scientific research. Completely free of charge for academic use. For bussiness use, please contact Prof. Sai Liang (email@example.com) for details. Q: How can I get access to CGEED data? A: We are currently working on developing online database management system. For now, please contact Prof. Sai Liang (firstname.lastname@example.org) to discuss potential cooperation on academic research.