The main Chinese SURF participants include Institute of Urban meteorology (IUM), Chinese Academy of Meteorological Sciences (CAMS) and Tianjin Institute of Meteorological Sciences (TIMS), etc. Foreign participants are from National Center of Atmospheric Research (US), San Jose State University (US), Reading University (UK),
The study will focus on urban rainfall and fog/haze over complex terrain and heterogeneous underlying surfaces by the study of:
1) Observations on land-atmosphere exchange processes and the 3-D boundary layer structure from the complex underlying surfaces.
2) Heavy rainfall observations.
3)Fog/haze observations.
4) Impacts on
5) Impacts on summer heavy rainfall by the complex underlying surfaces
6) Impacts on the spatial distribution of fog/haze by the complex underlying surfaces in the Jing-Jin-Ji City Cluster.
comparisons over the complex underlying surfaces.
The international-collaborated study will improve:
1) Understanding of land-atmosphere exchange processes and the 3-D boundary layer structure from the complex underlying surfaces in
2) Understanding of initiation and evolutions of heavy rainfalls which have high-impact on urban. Understanding of boundary layer structures of fog/haze events and pollutants’ transportations
3) High-resolution numerical model in the Jing-Jin-Ji City Cluster.
      Fine scales forecasts on heavy rainfall and fog/haze in the Jing-Jin-Ji City Cluster aiming at helping decision makers to decrease damages by these high-impact weathers.  
 
 
 
 
SURF is Field Study of Urban Rainfall and Fog/Haze over Complex Terrain and Underlying Surfaces, which is leaded by Institute of Urban Meteorology, CMA (IUM) cooperating with international and Chinese affiliations. SURF is sponsored by International S&T Cooperation Program of China (ISTCP) of Ministry of Science and Technology of the People´s Republic of China (MOST). The core scientific objective of SURF is to develop urban fine weather model and improve forecast abilities on precipitation, fog and haze, by carrying out field experiments on urban rainfall and fog/haze over complex terrain and underlying surfaces. Vaisala Group, Purdue University (US), Michigan State University (US), etc. land-atmosphere exchange processes and the 3-D boundary layer structure from the complex underlying surfacesin the Jing-Jin-Ji City Cluster. 7) High-resolution numerical model the Jing-Jin-Ji City Cluster.in the Jing-Jin-Ji City Cluster