Earth-current Results at Tucson Magnetic Observatory, 1932-1942, Issue 175, Volume 9 |
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105 WEST MERIDIAN AVERAGES FOR SUCCESSIVE calm days COMPONENT EASTWARD LENGTH COMPONENT EASTWARD LINE COMPONENT NORTHERLY LENGTH COMPONENT NORTHERLY LINE DAYS MEANS DIRECTION E 0°.5 DIRECTION N 19°.5 DIRECTION_N 17°.8 diurnal-variation curve earth currents earth-current flow earth-current potential gradient Eastward component EASTWARD LINE OW electrode EXPRESSED IN HUNDRED-THOUSANDTHS EXPRESSED IN HUNDREDTHS FEB MAR APR galvanometer Hodograms showing HOUR AS INDICATED HUNDREDTHS OF MILLIVOLTS INDICATED 105 INDICATED ON 105 JAN FEB MAR JUN JUL AUG KILOMETER THE TABULAR KILOMETER VALUES TABULATED KMS 56.8 DIRECTION KMS 58.4 DIRECTION_N KMS 93.9 DIRECTION LENGTH IN KMS LINE OW LENGTH MAGNETIC OBSERVATORY EXPRESSED MAGNETIC X-Y MERIDIAN MEAN HOURS MILLIVOLTS PER KILOMETER MONTHLY MEAN VALUES Northward component NOV DEC MEANS OCT NOV DEC seasonal changes SEP OCT NOV SUCCESSIVE PERIODS sunspot cycle TABULAR VALUES TABULATED FOR SUCCESSIVE Terrestrial Magnetism Tucson Magnetic Observatory VALUES ARE AVERAGES variation at Tucson variation in earth-current WEST MERIDIAN MEAN winter anomaly