interventions: The Dull Orange Sun

sunset/twilight 1

sunset/twilight 2

sunset/twilight 3

Airborne pollutants soften sky colors. They also enhance the reduction of both direct and scattered light, especially when the sun is low in the sky. This reduces the total amount of light that reaches the ground, robbing sunrises and sunsets of brilliance and intensity. Thus, twilight colors at the surface on dusty or hazy days tend to be muted and subdued, even though purer oranges and reds persist in the cleaner air aloft. This effect is most noticeable in an airplane, shortly after take-off on a hazy evening: A seemingly bland sunset at the ground gives way to vivid color aloft as soon as the plane ascends beyond the haze. When the haze layer is shallow, a similar effect sometimes is evident at the surface. Once the sun has dropped below the horizon, an eruption of fiery oranges and reds appear so that it no longer directly illuminates the thin veil of surface-based haze present below the clouds. The haze layer appears as a dark band just above the horizon.

#StephenFCorfidi
#NOAA/NWS Storm Prediction Center

The selection of images below documents two out of five rogue events (1 + 2 + 3) installed, December 2020, New York, NY,

materials: acrylic paint, acid-free ink, archival arches paper (30 X 22 inches)