Noctilucent clouds, herring structure

Noctilucent clouds, herring structure

E120/0303 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 54.3MB

Downloadable file size: 1.5MB

Price image Pricing

Please login to use the price calculator


Caption: Noctilucent cloud. These bright displays are seen in the middle of the night in summer at high latitudes. Seen here is an unusual crossed pattern, known as the "herring" structure. The composition of noctilucent clouds is unknown, but they are known to exist at 70-90 kilometres altitude - well above normal clouds. They are normally seen when the sun is 4-16 degrees below the observer's horizon, and have a whitish colour against a dark sky. Photographed in Finland.

Release details: Model release not required. Property release not required.

Keywords: climate, cloud, cloud types, clouds, dusk, herring structure, meteorology, night, noctilucent, noctilucent cloud, sky, weather

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.