Medium Frequency Radars in Japan and Alaska for Upper Atmosphere Observations

Yasuhiro MURAYAMA; Kiyoshi IGARASHI; Donald D. RICE; Brenton J. WATKINS; Richard L. COLLINS; Kohei MIZUTANI; Yoshinobu SAITO; Shoji KAINUMA

Medium Frequency Radars in Japan and Alaska for Upper Atmosphere Observations

Yasuhiro MURAYAMA, Kiyoshi IGARASHI, Donald D. RICE, Brenton J. WATKINS, Richard L. COLLINS, Kohei MIZUTANI, Yoshinobu SAITO, Shoji KAINUMA

Full Text Views

0

Cite this

Summary :

MF (medium frequency) radars (MFR) are powerful tools for understanding the upper atmosphere, by measuring horizontal wind velocity and electron density. This article introduces three MFR systems, two in Japan, Yamagawa (31.20N, 130.62E) and Wakkanai (45.36N, 141.81E) radars, and one at Poker Flat, Alaska (65.1N, 147.5W). Experimental techniques, and their observed results are briefly shown. Horizontal wind velocity was observed by those MFRs, in height ranges of 60-100 km (day) and 80-100 km (night) at Yamagawa and Wakkanai, while the data coverage is unusually low, >54 km (day) and >68 km (night), at Poker Flat. Comparison of MFR winds with temperature observed by a collocated Rayleigh lidar at Poker Flat shows consistency of those two instrument results in terms of atmospheric wave theory, implying validity of MFR data at such low altitudes. Electron density results at Poker Flat agree reasonably with International Reference Ionosphere model values at 74-84 km, and agree well with variation of cosmic noise absorption by the Poker Flat imaging riometer, suggesting valid electron density estimation by MFR at least below 80-85 km.

Publication: IEICE TRANSACTIONS on Communications Vol.E83-B No.9 pp.1996-2003

Publication Date: 2000/09/25

Publicized

Online ISSN

DOI

Type of Manuscript: Special Section PAPER (Special Issue on Advances in Radar Systems)

Category

Cite this

Copy

Yasuhiro MURAYAMA, Kiyoshi IGARASHI, Donald D. RICE, Brenton J. WATKINS, Richard L. COLLINS, Kohei MIZUTANI, Yoshinobu SAITO, Shoji KAINUMA, "Medium Frequency Radars in Japan and Alaska for Upper Atmosphere Observations" in IEICE TRANSACTIONS on Communications, vol. E83-B, no. 9, pp. 1996-2003, September 2000, doi: .
Abstract: MF (medium frequency) radars (MFR) are powerful tools for understanding the upper atmosphere, by measuring horizontal wind velocity and electron density. This article introduces three MFR systems, two in Japan, Yamagawa (31.20N, 130.62E) and Wakkanai (45.36N, 141.81E) radars, and one at Poker Flat, Alaska (65.1N, 147.5W). Experimental techniques, and their observed results are briefly shown. Horizontal wind velocity was observed by those MFRs, in height ranges of 60-100 km (day) and 80-100 km (night) at Yamagawa and Wakkanai, while the data coverage is unusually low, >54 km (day) and >68 km (night), at Poker Flat. Comparison of MFR winds with temperature observed by a collocated Rayleigh lidar at Poker Flat shows consistency of those two instrument results in terms of atmospheric wave theory, implying validity of MFR data at such low altitudes. Electron density results at Poker Flat agree reasonably with International Reference Ionosphere model values at 74-84 km, and agree well with variation of cosmic noise absorption by the Poker Flat imaging riometer, suggesting valid electron density estimation by MFR at least below 80-85 km.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e83-b_9_1996/_p

Copy

@ARTICLE{e83-b_9_1996,
author={Yasuhiro MURAYAMA, Kiyoshi IGARASHI, Donald D. RICE, Brenton J. WATKINS, Richard L. COLLINS, Kohei MIZUTANI, Yoshinobu SAITO, Shoji KAINUMA, },
journal={IEICE TRANSACTIONS on Communications},
title={Medium Frequency Radars in Japan and Alaska for Upper Atmosphere Observations},
year={2000},
volume={E83-B},
number={9},
pages={1996-2003},
abstract={MF (medium frequency) radars (MFR) are powerful tools for understanding the upper atmosphere, by measuring horizontal wind velocity and electron density. This article introduces three MFR systems, two in Japan, Yamagawa (31.20N, 130.62E) and Wakkanai (45.36N, 141.81E) radars, and one at Poker Flat, Alaska (65.1N, 147.5W). Experimental techniques, and their observed results are briefly shown. Horizontal wind velocity was observed by those MFRs, in height ranges of 60-100 km (day) and 80-100 km (night) at Yamagawa and Wakkanai, while the data coverage is unusually low, >54 km (day) and >68 km (night), at Poker Flat. Comparison of MFR winds with temperature observed by a collocated Rayleigh lidar at Poker Flat shows consistency of those two instrument results in terms of atmospheric wave theory, implying validity of MFR data at such low altitudes. Electron density results at Poker Flat agree reasonably with International Reference Ionosphere model values at 74-84 km, and agree well with variation of cosmic noise absorption by the Poker Flat imaging riometer, suggesting valid electron density estimation by MFR at least below 80-85 km.},
keywords={},
doi={},
ISSN={},
month={September},}

Copy

TY - JOUR
TI - Medium Frequency Radars in Japan and Alaska for Upper Atmosphere Observations
T2 - IEICE TRANSACTIONS on Communications
SP - 1996
EP - 2003
AU - Yasuhiro MURAYAMA
AU - Kiyoshi IGARASHI
AU - Donald D. RICE
AU - Brenton J. WATKINS
AU - Richard L. COLLINS
AU - Kohei MIZUTANI
AU - Yoshinobu SAITO
AU - Shoji KAINUMA
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E83-B
IS - 9
JA - IEICE TRANSACTIONS on Communications
Y1 - September 2000
AB - MF (medium frequency) radars (MFR) are powerful tools for understanding the upper atmosphere, by measuring horizontal wind velocity and electron density. This article introduces three MFR systems, two in Japan, Yamagawa (31.20N, 130.62E) and Wakkanai (45.36N, 141.81E) radars, and one at Poker Flat, Alaska (65.1N, 147.5W). Experimental techniques, and their observed results are briefly shown. Horizontal wind velocity was observed by those MFRs, in height ranges of 60-100 km (day) and 80-100 km (night) at Yamagawa and Wakkanai, while the data coverage is unusually low, >54 km (day) and >68 km (night), at Poker Flat. Comparison of MFR winds with temperature observed by a collocated Rayleigh lidar at Poker Flat shows consistency of those two instrument results in terms of atmospheric wave theory, implying validity of MFR data at such low altitudes. Electron density results at Poker Flat agree reasonably with International Reference Ionosphere model values at 74-84 km, and agree well with variation of cosmic noise absorption by the Poker Flat imaging riometer, suggesting valid electron density estimation by MFR at least below 80-85 km.
ER -