Signatures of quasi-2-day planetary waves in the equatorial electrojet: results from simultaneous observations of mesospheric winds and geomagnetic field variations at low latitudes
S. Gurubaran et al., Signatures of quasi-2-day planetary waves in the equatorial electrojet: results from simultaneous observations of mesospheric winds and geomagnetic field variations at low latitudes, J ATMOS S-P, 63(9), 2001, pp. 813-821
Citations number
32
Categorie Soggetti
Earth Sciences
Journal title
JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
Observations of mesospheric winds in the altitude region 84-98 km with the
medium frequency (MF) radar located close to the magnetic equator at Tirune
lveli (8.7 degreesN, 77.8 degreesE geographic, 0.35 degreesN magnetic dip),
India, and the ground-based geomagnetic data from the low latitude Indian
sector, are used to identify the signatures of the quasi-2-day (QTD) planet
ary waves in the equatorial electrojet (EEJ). It is found that there is a r
easonable correlation between the occurrence times of the quasi-2-day oscil
lation in the EEJ strength and the mesospheric winds as revealed by the obs
ervations. (C) 2001 Elsevier Science Ltd. All rights reserved.