Informes Técnicos

Permanent URI for this collection

https://repositorio.igp.gob.pe/handle/20.500.12816/4549

Browse

Browsing Informes Técnicos by Author "Balsley, Ben B."

Now showing 1 - 2 of 2
  • Thumbnail Image
    ItemOpen Access
    Ionospheric drift velocity measurements at Jicamarca, Peru (July 1967 - March 1970)
    (World Data Center A, 1971-10) Balsley, Ben B.; Woodman Pollitt, Ronald Francisco
    This report is a collection of measurements of electrón drift velocity in the E and F regions of the equatorial ionosphere, made at the Jicamarca Radar Observatory (dip latitude ~1°N). The data consist of about eighty days of observations during the period July 1967 to March 1970. The measurements consist of (1) the vertical component of the electrón drift velocity in the F región, and (2) the east-west component of the electrón drift velocity in the E región. Other components of the drifts have been measured but the data are sparse and have not been included here. The horizontal component (H trace) of the magnetic field strength records of Huancayo, Perú, has also been included for reference. The purpose of this report is to make these data available to the scientific community. Comparison between these measurements and other geophysical phenomena should aid in the understanding of a variety of ionospheric and magnetospheric processes. This type of data continúes to be taken at JRO from time to time. For information regarding the more recent data, we suggest contacting either of the authors of this report. The data included in this report are also available in digital form on magnetic tape and punched cards.
    Palabras clave:IonosphereMagnetosphereMagnetosphere
  • Thumbnail Image
    ItemRestricted
    Observations of E-region irregularities with ST-Radar in Piura Perú
    (Instituto Geofísico del Perú, 1993) Woodman Pollitt, Ronald Francisco; Rodriguez, Rodolfo; Balsley, Ben B.
    During a short period around the first days of february the ST radar located in the campus of the Universidad de Piura, Piura (5°S. 80,5° w), Perú, was pointed in a direction perpendicular to the magnetic field. The goal was to make a quick evaluations of the instrument as a tool to study the E-region at this altitudes. The radar has an antenna of 100m x 100m, with a transmitter with a peak power of 50 kW. A pulse width of 8 usec was used giving a range resolution of 1.2 km. The radar interpulse period was set at 1 msec, given a maximum Nyquist frequency corresponding to a doppler shift of 150 m/sec. The observations lasted several days, but only the last were successful. The first trials were made centered at noon time, influenced by our experience with the E-region echoes at the equator, since this is the time at which the equatorial echoes are the strongest. We obtained no echoes during this trials.
    Palabras clave:E regionRadarMagnetic fields