![](https://mosaic-expedition.org/wp-content/uploads/2019/12/20191105-mosaic1_estherhorvath-4-1200x675.jpg)
For the first time during the MOSAiC expedition, a multi-wavelength lidar provides data on fine dust in the central Arctic during polar night.
For the first time during the MOSAiC expedition, a multi-wavelength lidar provides data on fine dust in the central Arctic during polar night.