Table of Contents:
  • This dataset provides hyper-spectral fields of visible and near-infrared cloud top radiance observed by the AISA Eagle instrument, which was deployed aboard the Polar 5 research aircraft. The measurements were conducted during the COMPEX-EC (Clouds over Complex Environments—EarthCARE) field study in April 2025. The COMPEX-EC campaign focused on observing Cold Air Outbreaks (CAOs) and associated cloud structures over open ocean north of the Norwegian coast. The AISA Eagle uses a single-line push broom sensor comprising 1024 across-track pixels. It captures measurements across 504 channels spanning wavelengths from 400 nm to 993 nm. The instrument features a 36.3° field of view (FOV) and achieves a high spatial resolution, typically below 1 meter for targets positioned 1 kilometer away. This comprehensive dataset allows for detailed small-scale analysis of cloud structures and properties during Arctic CAOs.