Sentences with phrase «globally averaged cloud»

Globally averaged cloud cover anomalies from the ISCCP IR (blue line) and MODIS (green line) cloud monitoring programmes (values on left - hand axis), operational since 1983 and 2000 respectively for: (a) low - level (> 680 mb / 3.2 km), and (b) middle - to - high - level (< 680 mb / 3.2 km) cloud cover.

Our long - term analysis of MISR data finds no statistically significant correlations between cosmic rays and global albedo or globally averaged cloud height, and no evidence for any regional or lagged correlations.

«we estimate that less than 23 %, at the 95 % confidence level, of the 11 - year cycle changes in the globally averaged cloud cover observed in solar cycle 22 is due to the change in the rate of ionization from the solar modulation of cosmic rays.»

Not exact matches

If ∆ T = λ ∆ Q is a reasonable approximation of the (large - scale) effects of forcing on globally averaged temperature, why does it matter if a few clouds are banging around locally on a given day?

Empirical associations between solar - modulated cosmic ray ionization of the atmosphere and globally averaged low - level cloud cover remain ambiguous.

A monthly time - series of globally averaged ISCCP low (> 680 mb / < 3.2 km) cloud and CR flux anomalies over the period of June 1983 to December 1994 similar to that presented in MS00 is shown in Figure 1a.

Using the method detailed in Ripley (1987) and Neal (1993) we find the number of degrees of freedom (df) to be 4 in the CR flux dataset and 7 in the globally averaged low cloud dataset.

Our evidence for this is based on the observation, previously noted by Pallé (2005), that the changes in globally averaged low cloud cover are strongly anti-correlated (r = − 0.79) to variations in overlying cloud cover (Fig. 3).

Composite of MODIS globally averaged liquid cloud fraction anomalies (%) during the five strongest FD events of Svensmark et al. (2012).

Panel (a) shows the CR flux (red line) from combined Moscow and Climax neutron monitor data, and the globally averaged ISCCP IR low (> 680 mb / < 3.2 km) cloud anomaly plotted at a monthly resolution from June 1983 to December 1994, (b) shows the local correlation coefficient (r - values) achieved between the cloud and CR flux data for 12 - month (boxcar) smoothed values.

The ISCCP shows an increase in globally averaged total cloud cover of about 2 % from 1983 to 1987, followed by a decline of about 4 % from 1987 to 2001.