@article{2108e2ee00884263a9a7ede083739e70,
title = "Balloon measurements of the vertical ionization profile over southern Israel and comparison to mid-latitude observations",
abstract = "Airborne measurements using meteorological balloons were conducted for the first time from southern Israel (geographic 30°35{\textquoteright}N, 34°45{\textquoteright}E geomagnetic 27°6{\textquoteright}N 112°23{\textquoteright}E) for measuring the vertical ionization profile during solar cycle 24. The results show the differences (increase of ~30%) in count rates as we proceed from solar maximum toward solar minimum. The observed altitude of maximum ionization (the Regener-Pfotzer maximum) was between 17–20 km, and it agrees well with results from other simultaneous measurements conducted at different latitudes (Reading, UK and Zaragoza-Barcelona, Spain). When compared with predictions of an analytical model, we find a highly significant correlation (R2=0.97) between our observations and the computed ionization profiles. The difference in count rates can be attributed to the height of the tropopause due to the model using a US standard atmosphere that differs from the measured atmospheric parameters above Israel.",
keywords = "Balloon, Galactic Cosmic Rays, Ionization Profile, Solar cycle",
author = "Roy Yaniv and Yoav Yair and Colin Price and Keri Nicoll and Giles Harrison and Anton Artamonov and Ilya Usoskin",
note = "Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd",
year = "2016",
month = nov,
day = "1",
doi = "10.1016/j.jastp.2016.10.003",
language = "אנגלית",
volume = "149",
pages = "87--92",
journal = "Journal of Atmospheric and Solar-Terrestrial Physics",
issn = "1364-6826",
publisher = "Elsevier Ltd.",
}