Rainfall Rate and Resistivity at East Pittsburgh, Pa.

A new type of rainfall gage has been built to read instantaneous rates of rainfall and resistivity. Construction details are given. Maximum rate of rainfall recorded during the period May-November 1961 at East Pittsburgh was 0.07 inch per minute. The minimum resistivity was 1,500 ohms per inch cube and the maximum resistivity 40,000 ohms per inch cube. These values are to be compared with standard wet-test values of 0.2 inch per minute and 7,000 ohms per inch cube.