世界气象组织：2021年世界气象组织空中尘埃公告（英文版）

The WMO Global Sand and Dust Storm Warning Advisory and Assessment System (SDS-WAS) is intended to provide continuous and improved SDS operational forecasts as well as to facilitate international coordinated SDS research in the earth-system science domain, fostering the seamless forecast of SDSs, air quality and chemical weather. It is also expected to sustainably realize the value of SDS scientific research in the chain of research, operational forecasts and services (WMO, 2020). SDS-WAS is