Finland HF and Esrange MST radar observations of polar mesosphere summer echoes

• Main Authors: T. Ogawa, N. F. Arnold, S. Kirkwood, N. Nishitani, M. Lester
• Format: Other Non-Article Part of Journal/Newspaper
• Language: unknown
• Published: 2003
• Subjects: Uncategorized; Science & Technology; Physical Sciences; Astronomy & Astrophysics; Geosciences; Multidisciplinary; Meteorology & Atmospheric Sciences; Geology; meteorology and atmospheric dynamics; middle atmosphere dynamics; thermospheric dynamics; waves and tides; instruments and techniques; METEOR ECHOES; VHF RADAR; NETWORK OBSERVATIONS; MESOPAUSE ECHOES; PMSE; SUPERDARN; DYNASONDE; DYNAMICS; CAMPAIGN; EISCAT; Esrange
• Online Access: https://figshare.com/articles/journal_contribution/Finland_HF_and_Esrange_MST_radar_observations_of_polar_mesosphere_summer_echoes/10165238

Peculiar near range echoes observed in summer with the SuperDARN HF radar in Finland are presented. The echoes were detected at four frequencies of 9, 11, 13 and 15 MHz at slant ranges of 105–250 km for about 100 min. Interferometer measurements indicate that the echoes are returned from 80–100 km a...