2021年全球FY4A AGRI云顶高度(CTH)实时产品

云顶高度指云层顶所处的高度，单位为 m；利用 AGRI 的 2 个红外窗区和 1个 CO2 吸收通道，结合数值预报资料，通过最优估计的迭代计算，生成全圆盘的云顶高度实时产品。该产品可进一步提高人们对云的宏观定量认识，加深对云与气候相互作用和全球水循环的理解。
卫星反演的云顶高度参数可以进一步提高对云与气候相互作用的理解以及对水循环的理解。该产品可以用于天气分析、气候分析和天气气候的数值模拟。

Cloud top height refers to the altitude of cloud tops, measured in meters (m). Using 2 infrared window channels and 1 CO₂ absorption channel of AGRI, combined with numerical forecast data, real-time full-disk cloud top height products are generated through iterative optimal estimation calculation. This product can further enhance people's macroscopic quantitative understanding of clouds, and deepen the understanding of the interaction between clouds and climate as well as the global water cycle. Satellite-retrieved cloud top height parameters can further improve the understanding of cloud-climate interactions and the water cycle. This product can be applied to weather analysis, climate analysis, and numerical simulations of weather and climate.