Alternate bands of light and dark on a glacier; usually found below steep narrow icefalls and thought to be the result of different flow and ablation rates between summer and winter.
An abrupt decrease, of at least 10%, of the background galactic cosmic ray intensity as observed by neutron monitors. It is associated with major plasma and magnetic field enhancements in the solar wi
nd at or near the Earth.
A rapid decrease in the observed galacticcosmic ray intensity following the passage of an outwardly convectinginterplanetary magnetic field disturbance, such as those associated withlarge CME's, that
sweep some galactic cosmic rays away from Earth.
A rapid decrease in the observed galactic cosmic ray intensity following the passage of an outwardly convecting interplanetary magnetic field disturbance, such as those associated with large CME's, th
at sweep some galactic cosmic rays away from Earth. (spase)
A rapid decrease in the observed galactic cosmic ray intensity following the passage of an outwardly convecting interplanetary magnetic field disturbance, such as those associated with large CME's, th
at sweep some galactic cosmic rays away from Earth. (spase)