This special issue of Atmospheric and Oceanic Science Letters (AOSL) is to commemorate the 10-year an-niversary of Nansen-Zhu International Research Center (NZC) at the Institute of Atmospheric Physics (IAP) under the Chinese Academy of Sciences (CAS). NZC was set-up in 3 November 2003 on the initiative of Prof. Huijun WANG, IAP/CAS and Prof. Ola M. JOHANNESSEN, Nansen Center (NERSC), Bergen. NZC has now the following six partners: IAP, NERSC, Peking University (PKU), University of Bergen (UoB), Uni-Research, and Nanjing University (NJU), where the Norwegian partners are partner institutions of the Bjerknes Center for Climate Research in Bergen.
    NZC has been very active in publications of scientific papers and over the past 10 years NZC has published more than 400 papers in international journals. Furthermore, 37 students have received their PhDs and 13 their Master degree at IAP and PKU. At present, the NZC has a total staff of 71 including 22 PhD students, 17 Mas-ter students, and 16 associated scientists.
    To celebrate the 10-year anniversary, the Editorial board of AOSL and the Advisory Board of NZC agreed to have this special issue in order to bring up the latest scientific development at NZC. The invited papers are from the partners of NZC and institutions/universities in China. All submitted manuscripts were peer-reviewed. In this regard, special appreciations are given to all the referees for their constructive reviews.
    The special issue includes 30 papers covering paleo and present-day climate, extreme weathers in China, climate teleconnection between Arctic/Atlantic and the Asian monsoon, aerosol and climate, including melting of a glacier at Northwest Greenland. The editors would like to thank all the authors for their contributions to this 10-year NZC special issue.