Anderson, DavidAnghel, AdelaYumoto, KiyohumiIshitsuka, MutsumiKudeki, Erhan2018-10-232018-10-232002-06-28Anderson, D., Anghel, A., Yumoto, K., Ishitsuka, M., & Kudeki, E. (2002). Estimating daytime vertical ExB drift velocities in the equatorial F‐region using ground‐based magnetometer observations.==$Geophysical Research Letters, 29$==(12). https://doi.org/10.1029/2001GL014562index-oti2018http://hdl.handle.net/20.500.12816/3102The daytime equatorial electrojet is a narrow band of enhanced eastward current flowing in the 100 to 120 km altitude region within ±2° latitude of the dip equator. A unique way of determining the daytime strength of the electrojet is to observe the difference in the magnitudes of the Horizontal (H) component between a magnetometer placed directly on the magnetic equator and one displaced 6 to 9 degrees away. The difference between these measured H values provides a direct measure of the daytime electrojet current, and in turn, the magnitude of the vertical ExB drift velocity in the F region ionosphere. This paper discusses a recent study that has established the quantitative relationship between the vertical ExB drift velocity in the ionospheric F region and the daytime strength of the equatorial electrojet in the South American (west coast) longitude sector.application/pdfenginfo:eu-repo/semantics/restrictedAccessElectrojetF regionGround-based measurementIonosphereMagnetometerVertical migrationinfo:eu-repo/semantics/articlehttp://purl.org/pe-repo/ocde/ford#1.05.01Geophysical Research Lettershttps://doi.org/10.1029/2001GL014562