A Chinese paraglider's account of having been unwittingly swept into a thundercloud and dragged 8 km (5 miles) into the sky has come under question after his video of the incident, carried by Chinese ...

Abstract: The problem of scattering of electromagnetic plane waves by one-dimensional (1D) periodic dielectric gratings, under the most general condition of oblique incidence (3D incidence), is ...

Noctilucent clouds usually form close to the poles, but in recent decades, they’re being spotted closer to the Equator ...

In this paper, we present an optical cloud shadow-detection technique called the Cloud Shadow Detection Index (CSDI). This approach is for homogeneous water bodies such as deep waters where shadow ...