Sentences with phrase «globally averaged cloud cover»

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.

«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

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

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).

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.