Sentences with phrase «global cloud cover»

I was interested not so much in the forcing effect of clouds themselves so much as the change in albedo which might result from a change in the overall extent of global cloud cover.

Global cloud cover varies but is typically 60 - 70 % of the earth's surface area (or so it seems).

He suggests that some unknown mechanism has caused global cloud cover to decrease over the past century.

The various links are important in that they show a clear relationship between global cloud cover and subsequent trends in...

One of the biggest criticisms levied against Svensmark was that he had used data from a satellite that did not measure total global cloud cover.

6) The main cloud bands move more poleward to regions where solar insolation is less intense and total global albedo declines via a reduction in global cloud cover due to shorter lines of air mass mixing.

Global cloud cover also increased by 0.5 %.

When other researchers plugged in a more comprehensive data set, the correlations Svensmark found between cosmic radiation and the Earth's global cloud cover broke down.

I will quote from NASA / GISS: the «overall slow decrease of upwelling SW flux from the mid-1980's until the end of the 1990's and subsequent increase from 2000 onwards appear to caused, primarily, by changes in global cloud cover (although there is a small increase of cloud optical thickness after 2000) and is confirmed by the ERBS measurements.»

# 187 — «I was interested not so much in the forcing effect of clouds themselves so much as the change in albedo which might result from a change in the overall extent of global cloud cover.»

«the variation of ionization by galactic cosmic rays over the decadal solar cycle does not entail a response... that would explain observed variations in global cloud cover»

In addition to TSI being very stable I do indeed hypothesise that global cloud cover is also quite stable (taken always in sunlight as viewed from your imaginary sub-solar point as above, and averaged at centennial length timeframes).

Changes in global cloud cover are dominated by changes in Pacific cloud over the eastern upwelling regions.

A map of Earth showing the global cloud cover on July 11, 2005, based largely on observations by the MODIS sensor on the NASA Terra satellite.

(The only one I can think of, by the only really solidly qualified contrarian, Lindzen, who also claimed that tobacco wasn't linked to lung cancer, came up with an Iris theory that has been thoroughly repudiated (recent studies have in fact continued to strongly show increased atmospheric moisture), but his theory of a significant enough decrease to keep the earth from significantly warming at the same time this radical shift toward lack of global cloud cover (and far more drought everywhere?)

Fig. 1: A map of Earth showing the global cloud cover on July 11, 2005, based largely on observations by the MODIS sensor on the NASA Terra satellite.

The latter, in turn, has the potentiality of modulating the global cloud cover that ultimately drives the climate oscillations through albedo oscillations.

The global cloud cover averages around 0.68 when analyzing clouds with optical depth larger than 0.1.