Latitude Effect of Cosmic Rays Above 50°N Latitude

Abstract
The latitude effect for cosmic rays above 50° N magnetic latitude has been measured by a continuously operating, ionization type meter mounted on shipboard. From these data the monthly mean temperature coefficient is found to be -0.09±0.03 percent per degree centigrade. When this correction is applied to the data the latitude vs. intensity curve is found to be flat within the limits of the probable error over the range of magnetic latitudes from 53° 30′ N (Seattle) to 61° 36′ N (Juneau).