How often do thermally excited 630.0 nm emissions occur in the polar ionosphere?

Posted By: bcss On 1. December 2017

Kwagala N.K., K. Oksavik, D.A. Lorentzen, and M.G. Johnsen (2017), How often do thermally excited 630.0 nm emissions occur in the polar ionosphere?, J. Geophys. Res. Space Physics, 121,  doi.org/10.1002/2017JA024744