cloud cover


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cloud cover

[′klau̇d ‚kəv·ər]
(meteorology)
That portion of the sky cover which is attributed to clouds, usually measured in tenths of sky covered. Also known as cloudage; cloudiness.

cloud cover

Estimated as the apparent coverage of the total sky as seen by an observer. It is expressed as octas or decas. When half the sky is covered with clouds, it is referred to as four-octa or five-deca clouds. Generally, the cloud amount is indicated by the expressions few, scattered, and overcast. Also called cloud amount
References in periodicals archive ?
The cloud cover isn't actually as bad as they thought it was going to be.
The towers were searched for carcasses on mornings following nights with four weather conditions: 1) [greater than or equal to] 50% cloud cover and northerly winds, 2) [greater than or equal to] 50% cloud cover and non-northerly winds, 3) <50% cloud cover and northerly winds, and 4) <50% cloud cover and non-northerly winds.
On Dec 13/14, Nick recorded 13 bright Geminids in two sessions interrupted by a long spell of cloud cover, but eight of these were picked up in the predawn hour ending at 06:33 UT.
To date, the accurate prediction of global distribution of cloud cover both in space and time has been problematic.
30am inspection with frost forecast, but clerk of the course Tim Long said: "They think we'll have too much cloud cover for frost, so hopefully we should be okay.
So while warmer temperatures may help plants grow, increasing cloud cover may block some sunlight, an effect that would tend to slow plant growth, Quinlan suggests.
An additional advantage is that normal cloud cover does not affect data collection, thanks to a correction algorithm Wright developed.
A Met Office spokesman said yesterday: "There looks like being too much cloud cover overnight on Friday for it to get too cold - the minimum could be between 1C and -1C, and the cloud cover reduces the chances of the frost getting into the ground.
Thursday morning should also be sunny with cloud cover increasing in the afternoon, he said.
One of these detectors, designed to image cloud cover, had resided inside an instrument intended for GOES-I up until a year ago.
Cloud cover that was expected to hold down temperatures today began lifting in Northern California unexpectedly this afternoon sending the mercury climbing on thermometers.
The forecast is for a nice bright start with some cloud cover about midday," said Prosser.