The measurement of the velocities of P and S waves propagating in the surface layer of ice sheet at Mizuho Station, East Antarctica

• Main Author: Kenji Ishizawa
• Format: Article in Journal/Newspaper
• Language: English; Japanese
• Published: National Institute of Polar Research 1981
• Subjects: Geography (General); G1-922; East Antarctica; Greenland; Mizuho; Mizuho Station; Antarc*; Antarctica; Ice Sheet
• Online Access: https://doi.org/10.15094/00008268; https://doaj.org/article/2f3adbe1978c4820af31957c8867b901

The measurements of P and S wave velocity in the surface layer down to a depth of 80m were made at Mizuho Station (70°42'S, 44°20'E, 2230m a.s.l.) in 1978 by the following method : one was a borehole logging and the other was a refraction. The variation of the velocity with depth was obtained and it was found that the velocity obtained in the measurement was approximately equal to that obtained experimentally in a laboratory using the core samples drilled at Mizuho Station. The data of P wave velocity measured in Antarctica and Greenland were summarized and the relationship between the P wave velocity at a depth of 50m, V_P, and the mean annual temperature, T_m, was obtained as follows : V_P=0.034T_m+4.529(km/s).