Moon by earthlight

Moon by earthlight

C010/6360 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 50.1MB

Downloadable file size: 3.7MB

Price image Pricing

Please login to use the price calculator


Credit: SHEILA TERRY/SCIENCE PHOTO LIBRARY

Caption: In this sketch by Leonardo da Vinci, he illustrated the phenomenon of what is now known as earthlight and gave the first explanation of its cause. Earthlight occurs when the shadowed area of the crescent moon is illuminated by reflected sunlight from the Earth. Leonardo thought that it was the seas on Earth which reflected the sun. In reality, the reflectance of clouds is 50% of incident sunlight, that of the oceans only 10%. Comparative luminance measurements of earthlight over time are used to estimate changes in the extent of the cloud cover which are of importance to climate change and global warming studies

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

Keywords: climate change, cloud cover, cloud reflectance, crescent moon, earth, earthlight, global warming, leonardo da vinci, leonardo's notebooks, moon, notebooks, notes, reflectance, renaissance, sea reflectance

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