How long can the Fengyun-3D star extend the validity of weather forecasts?

According to reports, at 2:35 on November 15, my country successfully launched the "Fengyun-3D" meteorological satellite using the Long March 4C carrier rocket at the Taiyuan Satellite Launch Center, and the satellite successfully entered Predetermined orbits can ultimately extend the validity of weather forecasts by 2-3 days.

It is reported that one of the core instruments of the Fengyun-3 series satellites is the infrared hyperspectral atmospheric vertical detector. This instrument uses the most advanced Fourier interference detection technology in the world and can achieve geophysical detection. High spectral resolution infrared observations of gas systems, with spectra covering 1370 channels.

Experts said that compared with the original Fengyun-3 infrared spectrometer, the number of spectral channels has increased by 70 times, and the spectral resolution can reach a maximum wave number of 0.625 cm, which can improve the reflection of atmospheric temperature and atmospheric humidity profiles. The performance accuracy is more than doubled, which greatly improves my country's ability to support medium- and long-term numerical weather forecasts and extends the effective timeliness of weather forecasts by 2-3 days.

I hope the D satellite can be put into use as soon as possible!