Ship Tracks South of Alaska Feature Summary

Physics in Your World
Ship Tracks South of Alaska
These tracks were made south of Alaska when water vapor condensed on particles in ships' exhausts.
-- Click on the image for the same scene in false color, showing the relative size of the particles: yellow-orange indicates small particles; lavender-purple, large ones.
-- To find out how the particle size affects the intensity of the scattered sunlight, visit Ship Tracks South of Alaska.
-- To learn about the effects of aircraft contrails on Earth's climate, see this Physics in Your World.
credits--smaller image & larger image: <a href="" target="_blank">NASA/GSFC</a>, <a href="" target="_blank">MODIS Rapid Response</a>; <a href="" target="_blank">smaller & larger image source</a>
credits--smaller image & larger image: NASA/GSFC, MODIS Rapid Response; smaller & larger image source
Image URL:
June 1, 2009 - June 16, 2009