Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - A study of aspect angle effects in the E-region irregularity velocity using multi-point electric field measurements
AU - Makarevich, R. A.
AU - Senior, A.
AU - Koustov, A. V.
AU - Uspensky, M.
AU - Honary, F.
AU - Dyson, P. L.
PY - 2006/11
Y1 - 2006/11
N2 - E-region irregularity velocity measured by the STARE Norway VHF radar is considered as a function of magnetic aspect angle α and EISCAT-derived electron drift velocity at 7 locations with α between 0.38° and 2.64°. It is shown that the irregularity line-of-sight (l-o-s) velocity normalized to the electron velocity component V e0 comp exhibits a decrease with an increasing aspect angle for V e0 comp exceeding 500 m/s. The rate of velocity decrease is greater than those reported previously and is close to that predicted by the linear theory of electrojet irregularities without assuming anomalously large collision frequencies.
AB - E-region irregularity velocity measured by the STARE Norway VHF radar is considered as a function of magnetic aspect angle α and EISCAT-derived electron drift velocity at 7 locations with α between 0.38° and 2.64°. It is shown that the irregularity line-of-sight (l-o-s) velocity normalized to the electron velocity component V e0 comp exhibits a decrease with an increasing aspect angle for V e0 comp exceeding 500 m/s. The rate of velocity decrease is greater than those reported previously and is close to that predicted by the linear theory of electrojet irregularities without assuming anomalously large collision frequencies.
KW - EISCAT
KW - STARE DCS-publications-id
KW - art-816
KW - DCS-publications-credits
KW - iono
KW - DCS-publications-personnel-id
KW - 51
KW - 5
KW - 81
U2 - 10.1029/2006GL027740
DO - 10.1029/2006GL027740
M3 - Journal article
VL - 33
SP - L21102
JO - Geophysical Research Letters
JF - Geophysical Research Letters
SN - 0094-8276
IS - 21
ER -