Визначено основні закономірності зміни з часом вертикальних значень TEC для декількох близьких GNSS-станцій.
- Klobuchar J.A., Kunches J.M. (2000) Eye on the ionosphere: the spatial variability of ionospheric range delay. GPS Solut 3(3):70–74. doi:10.1007/PL00012808.
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- Ionosferni karty: ftp://cddis.gsfc.nasa.gov/gps/products/ionex/.
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- Andrzej Krankowski and all. Ionospheric electron density observed by FORMOSAT-3/COSMIC. J Geod DOI 10.1007/s00190-011-0481-z.
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- ZAKPOS – merezha referencnyh GNSS stancij. –http://zakpos.zakgeo.com.ua/.