Cloud fraction

Cloud fraction is the percentage of each pixel in satellite imagery or each gridbox in a weather or climate model that is covered with clouds. A cloud fraction of one means the pixel is completely covered with clouds, while a cloud fraction of zero represents a totally cloud free pixel.[1]


  1. ^ Cloud Fraction NASA Earth Observatory, January 2005.

Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Cloud cover — Part of the Nature series on Weather   Calendar seasons Spring · Summer Autumn  …   Wikipedia

  • cloud amount — The proportion of sky obscured by clouds, expressed as a fraction of sky covered. The amount may be indicated in octas (sometimes spelled as oktas) or decas (the total sky divided into 8 or 10 parts, respectively). Generally, the cloud amount is… …   Aviation dictionary

  • cloud amount — The proportion of sky obscured by cloud, expressed as a fraction of sky covered …   Military dictionary

  • cloud cover — 1. a covering of clouds over all or part of the sky. 2. the fraction of sky covered by clouds. Also called cloudage. Cf. sky cover. [1940 45] * * * …   Universalium

  • cloud cover — noun The percentage or fraction of the sky obscured by clouds …   Wiktionary

  • Oort cloud — An artist s rendering of the Oort cloud and the Kuiper belt (inset). Sizes of individual objects have been exaggerated for visibility …   Wikipedia

  • Mushroom cloud — created by smoke billows Ascending cloud from Redoubt Vol …   Wikipedia

  • Molecular cloud — See also: Solar nebula Within a few million years the light from bright stars will have boiled away this molecular cloud of gas and dust. The cloud has broken off from the Carina Nebula. Newly formed stars are visible nearby, their images… …   Wikipedia

  • Wall cloud — A wall cloud, or pedestal cloud, is a cloud formation associated with thunderstorms. It is a marked lowering typically beneath the rain free base (RFB) portion of a deep cumulus cloud (normally cumulonimbus but on occasion cumulus congestus), and …   Wikipedia

  • Parametrization (climate) — Parameterization in a weather or climate model within numerical weather prediction refers to the method of replacing processes that are too small scale or complex to be physically represented in the model by a simplified process. This can be… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.