NASA header National Aeronautics and Space Administration Global Climate Change: Vital Signs of the Planet National Aeronautics and Space Administration
Blog banner
Communications Specialist

Laura Faye Tenenbaum is a science communicator at NASA's Jet Propulsion Laboratory and teaches oceanography at Glendale Community College.

› contact Laura

The streets
Clouds around Greenland
March 7, 2012
posted by Dr. Amber Jenkins
16:00 PST
The streets

Cloud streets around southern Greenland. Image taken by NASA's MODIS (Moderate Resolution Imaging Spectroradiometer) instrument onboard the Aqua satellite.

This image shows impressive cloud "streets" around southern Greenland. Cloud streets are bands of cumulus clouds that form parallel to the low-level wind direction under the right conditions. They usually form within the lower one to three kilometers of the atmosphere, known as the planetary "boundary layer," and are caused by convection. They can form over land or sea. Under the right conditions, cloud streets exhibit remarkable periodic patterns. Airplanes — or space satellites — can offer especially good views.

Thanks to NASA's Earth Observatory twitter feed for the heads-up on this new image!

Please keep your comments civil, in proper English, and up to around 70 words. Thank you.