Abstract:
Magnetic variations shows different records at each observatory. They depend mainly on the latitude of the observatory and the local time. This paper reports the definitive geomagnetic data obtained at Panagjurishte Observatory in 2016, prepared in the form of local geomagnetic indices and absolute time-series of daily mean values plots. The Solar cycle 24 was a slowly rising one having moderate amplitude (https:// www.swpc.noaa.gov/products/solar-cycle-progression). It had a “double-peaked” solar maximum, with the first peak reaching sunspot number of 99 in 2011 and the second peak in April 2014 with 101. Calculated indices show that 2016 had 62 days with “storm” level conditions of the geomagnetic field but only moderate levels have been reached. Only one day, 25.10.2016 picked at K-index 7. This is reasonable due to the fact that the sunspot numbers that year continue to decline. Verification of data quality is performed according to “IAGA guide for magnetic measurements and observatory practice”.