The sensitivity analysis on the influence of Land-use change over the Eastern China on water, surface energy budget, and Carbon cycle

It is well known that land-atmosphere interactions play an important role in the Earth climate system. A lot of work has demonstrated that land-cover change provides an additional major forcing of climate, through changes in the physical properties of the land surface (Pielke et al., 2002). In this study, we will quantify the impact of urbanization and other land use change on surface energy budget, water, and carbon cycle over the eastern China using the coupled SiB-RAMS. We firstly compared the land-use difference between the global potential vegetation map for the representation of Pre-Industry land cover as a reference and the current land-use and land-cover map in 2000. The simulations used in this work will utilize an averaged year such as 1995 as a climatology value to initialize the atmosphere. The domain of our interest covered the eastern of China(105-120E,25-35N). And the horizontal grid increments will be 25-km for the fine grid, and 100-km for the coarse grid. Through our analysis of the simulations, we found that the land -cover changes between these two periods will cause great effects on minimum and maximum temperature and precipitation, as well as energy, water, and carbon balances. And Precipitation and minimum and maximum temperatures from the run on the year of 2000 will be compared with the meteorological station observed values. In addition, through this work, it will show you how well the model can simulated the present day weather.