Activity Update 2 August 2024 Solar Section Regular readers should note that the posts of 28 july and 29 july have been updated in order to include some images from carl bowron. these include an image of a solar flare!. The unexpectedly strong geomagnetic activity of the past few days is continuing, following earth’s glancing blow from a blob of sun stuff on wednesday.
Activity Update 4 August 2024 Solar Section The solar terrestrial activity report presents current solar data and images. coronal holes and active solar regions are tracked daily and documented using sdo images. Welcome to the stce's solar cycle 25 tracking page! here we monitor the ongoing solar cycle 25 (sc25) by providing graphs on the evolution of some important parameters in the space weather domain such as the sunspot number, flaring activity, coronal mass ejections and geomagnetic indices. Searching for historical solar and auroral activity data? the archive is filled with data between the year 1996 and yesterday. Subscribe to the bureau of meteorology aswfc solar indices mailing list to receive monthly updates of the observed and predicted smoothed sunspot numbers.
Activity Update 2 June 2024 Solar Section Searching for historical solar and auroral activity data? the archive is filled with data between the year 1996 and yesterday. Subscribe to the bureau of meteorology aswfc solar indices mailing list to receive monthly updates of the observed and predicted smoothed sunspot numbers. Increased geo magnetic activities are caused by coronal mass ejections (cme’s) triggered by solar activities such as solar flares, filament eruptions and coronal openings. The estimation technique is used to predict the remaining of the current cycle, but it is not able to predict the next solar cycle at this time. however, for engineering applications and mission planning an extended forecast for the next solar cycle is given below. We plot here, daily updated, the predictions for the sunspot numbers for solar cycle 25, by the noaa nasa ises panel (from 2019) and from a prediction based on the timing of the so called terminator event (mcintosh et al. 2020). The solar cycle is important for determining the lifetime of satellites in low earth orbit, as the drag on the satellites correlates with the solar cycle, especially as represented by f10.7cm. a higher solar maximum decreases satellite life and a lower solar maximum extends satellite life.
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