20–28 Mar 2025
Emperors Palace Hotel Casino Convention Resort
Africa/Johannesburg timezone

Exploring the Link Between Solar Magnetic Flux and UV Irradiance Variability During Solar Ascendance

Not scheduled
15m
Emperors Palace Hotel Casino Convention Resort

Emperors Palace Hotel Casino Convention Resort

64 Jones Rd, Kempton Park, Johannesburg, 1620
Poster

Speaker

Taona Namfukwe (Addis Ababa University)

Description

Solar irradiance is the primary energy source for Earth’s climate system, with its variability
influencing atmospheric chemistry, space weather, and climate processes. The solar ascending
phase is characterized by changes in solar surface magnetic flux density which defines the vari-
ations in the UV irradiance. Nevertheless, the link between the two does not seem to be well
understood with regard to the underlying processes.
The purpose of this study will be to exam ine the relationship between solar surface magnetic
flux density and UV irradiance fluctuation during the ascending solar cycle phase, Using the
Magnetic Plage Strength Index (MPSI) data from Mount Wilson Observatory (MWO). This
study will apply the Cross-Wavelet Transform and cross-correlation analysis to explore the
temporal dependencies between solar magnetic flux density and UV irradiance.
This will improve predictions of solar activity and its effects on space weather and climate and
will advance our understanding of how these values depend on time.

Stream Science

Primary author

Taona Namfukwe (Addis Ababa University)

Presentation materials

There are no materials yet.