Radio telescopes are used to detect and study radio emissions from the Sun, including solar flares and coronal mass ejections.

Magnetometers measure variations in the Earth's magnetic field, which can be caused by geomagnetic storms and other space weather phenomena.

Ionosondes transmit radio waves vertically into the ionosphere and measure the time it takes for the waves to return, providing information about the ionosphere's structure and dynamics.

GPS receivers can be used to measure the total electron content (TEC) in the ionosphere by analyzing the delay in GPS signals caused by the ionosphere.

All-sky cameras are used to capture images of the entire sky, allowing for the observation of auroras, airglow, and other optical phenomena.

Spectrometers are used to measure the intensity and wavelength distribution of solar radiation, providing information about the Sun's activity and the solar wind.

Incoherent scatter radars transmit radio waves into the ionosphere and measure the scattered signals, providing information about the direction and speed of the solar wind.

Lidars transmit laser pulses into the atmosphere and measure the backscattered signals, providing information about the structure and dynamics of the ionosphere.

Magnetometers measure variations in the Earth's magnetic field, which can be caused by geomagnetic storms and other space weather phenomena.

All-sky cameras are used to capture images of the entire sky, allowing for the observation of auroras, airglow, and other optical phenomena.

Spectrometers are used to measure the intensity and wavelength distribution of solar radiation, providing information about the Sun's activity and the solar wind.

Radio telescopes are used to detect and study radio emissions from the Sun, including solar flares and coronal mass ejections.

GPS receivers can be used to measure the total electron content (TEC) in the ionosphere by analyzing the delay in GPS signals caused by the ionosphere.

Ionosondes transmit radio waves vertically into the ionosphere and measure the time it takes for the waves to return, providing information about the ionosphere's structure and dynamics.

Incoherent scatter radars transmit radio waves into the ionosphere and measure the scattered signals, providing information about the direction and speed of the solar wind.