Geochang, South Korea
The Geochang Neutron Monitor (GCHN) is operated by the Korea Astronomy and Space Science Institute (KASI). It is located at the Satellite Laser Ranging (SLR) station on Mt. Gamak in Geochang, Republic of Korea.
Specifications
| Detector | NM64-type neutron monitor with 18 BF3 counters |
| (12 currently in operation) | |
| Geographic latitude | 35.59˚ N |
| Geographic longitude | 127.92˚ E |
| Altitude | 925 m asl |
| Effective vertical cutoff rigidity (Epoch 2015.0) | 11.0 GV |
| In continuous operation since | 2024-09 |
Detailed station information
Contact information
The Principal Investigator is Dr. Jongdae Sohn.
Korea Astronomy and Space Science Institute (KASI)
Daejeon, Republic of Korea
E-mail: jdsohn@kasi.re.kr
Conditions for use of data
You may use GCHN data under the following conditions:
- Please acknowledge the source in any publication that uses GCHN data. Suggested text: “Geochang neutron monitor data were kindly provided by the Korea Astronomy and Space Science Institute (KASI), Republic of Korea.”
- Please send a copy or citation of any publication using GCHN data to the contact person listed above.
- Commercial or industrial use of GCHN data is not allowed without prior agreement with KASI.
- You may share GCHN data with colleagues if you also tell them about these conditions.
References
Jung J, Kwak Y-S, Sohn J, Oh S, Yi Y, Kim Y, Choi S, Evenson P. Establishment of a Mid-Latitude Neutron Monitoring Site at Mt. Gamak in Korea. J. Astron. Space Sci. 42(3), 77–84 (2025). DOI: https://doi.org/10.5140/JASS.2025.42.3.77