RESULTS OF SIMULTANEOUS ELF MEASUREMENTS AT BRANNENBURG GERMANY AND KINGSTON, RHODE ISLAND
Abstract
A series of measurements of the horizontal magnetic field in the 5 to 15 cps frequency range were performed in Kingston, R. I., U.S.A., and Brannenburg, Germany between May, 1963 and June, 1964. These two locations are separated in distance along the earth's surface by approximately 4000 miles; their respective coordinates are lat. 41 deg.30 min. North, long 71 deg. 32 min. West (Kingston) and lat. 47 deg. 26 min. North, long. 12 deg. 03 min. East (Brannenburg). Simultaneous readings on paper tape running at 25 mm/sec obtained on 30 different dates for a total of approximately 321 minutes indicate that some ELF bursts were received simultaneously and must have originated from a common source; most of the time, however, the records at the two stations were not similar in appearance. The rectified output of a narrow filter about the frequency range of the first Schumann resonance (7.5 - 10 cps) was recorded continuously at both stations over periods of several months. Recordings at the two locations exhibit very similar diurnal variation if the data are referred to local time.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 15, 1965
- Accession Number
- AD0614012
Entities
People
- C. Polk
- T. J. Keefe
Organizations
- University of Rhode Island