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Sowing time directly affects crop yield, and how does climate change affect farmers' choice of sowing time? Recently, Associate Professor Wang Han’s Research Group of the Department of Earth System Science (DESS), Tsinghua University has, in the light of global observation data and model simulation, found that the global pattern of wheat sowing dates results from optimal yields. This finding, ...
Sowing time directly affects crop yield, and how does climate change affect farmers' choice of sowing time? Recently, Associate Professor Wang Han’s Research Group of the Department of Earth System Science (DESS), Tsinghua University has, in the light of global observation data and model simulation, found that the global pattern of wheat sowing dates results from optimal yields. This finding, ...
High-resolution ocean-sea ice models are core tools for climate change research and marine environmental security. With improvement of the resolution, the models can effectively analyze the refined process of ocean power and heat, and lower the uncertainty incurred by parameterization. The most advanced global ocean model in the world features a resolution of 1 ~ 2 kilometers, able to effective...
High-resolution Digital Elevation Model (DEM), which can offer accurate basic geographical data, plays a vital role in the research fields of global climate change, ocean tidal movement and matter exchange of terrestrial spheres. High-resolution global ocean DEMs, as a frontier branch of marine geology and marine surveying and mapping, provides a direct basis for understanding the tectonic move...
Reducing the use of internal combustion engine vehicles (ICEVs) is an important link in the making of carbon mitigation policies in the transport sector. Estimating the carbon mitigation and health cobenefits from the banning of ICEVs across different provinces is of great significance to the formulation of the “step-by-step” strategies and optimization of policy efficiency. Therefore, Cai We...
The heat exchange between land surface and atmosphere (mainly including sensible and latent heat) is a significant factor impacting the energy distribution among land surface, atmosphere and deep soil, and further impacts the thermal and dynamic processes of the atmosphere. The complexity of land cover types increases the complexity of heat exchange between land and atmosphere. In addition, due...
The heat exchange between land surface and atmosphere (mainly including sensible and latent heat) is a significant factor impacting the energy distribution among land surface, atmosphere and deep soil, and further impacts the thermal and dynamic processes of the atmosphere. The complexity of land cover types increases the complexity of heat exchange between land and atmosphere. In addition, due...
Evapotranspiration (ET) is the link between energy, water and carbon cycle. The ET remote sensing model is the main approach to obtain ET spatial distribution. However, these models are often subject to great uncertainty in their estimation due to their difficulty to distinguish the contribution of vegetation canopy and soil to ET and too many PFT-specific empirical parameters of vegetation. To...
