SynGLC is a global land cover map that has integrated information from 5 existing global land cover products: UMD Land Cover, GLCC, GLC2000, GlobCover, MCD12Q1.

the synGLC can be downloaded here
please feel free to contact xg1990#gmail_com for any help
Xu, G., Zhang, H., Chen, B., Zhang, H., Yan, J., Chen, J., ... & Dou, X. (2014). A Bayesian Based Method to Generate a Synergetic Land-Cover Map from Existing Land-Cover Products. Remote Sensing, 6(6), 5589-5613.