Operadores de rádio amadores que estudam a física espacial e a atmosfera superior investigaram a resposta da ionosfera ao eclipse solar anular de 2023 usando transmissões de ondas curtas.
solar activity
Posted inNews
Mapping the Moon to Shield Astronauts from Radiation
Scientists are charting landing spots that offer future lunar astronauts protection from the Sun and deep space.
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Solar Storms May Scramble Signals for Migratory Birds
Birds use Earth’s magnetic field to migrate, but severe space weather may interfere with navigation and reduce the number of birds in the sky.
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Ham Radios Crowdsourced Ionospheric Science During Eclipse
Amateur radio operators who study space physics and the upper atmosphere probed the ionosphere’s response to the 2023 annular solar eclipse using shortwave transmissions.
Posted inResearch Spotlights
Aurora Records Reveal Shortened Solar Cycle During Maunder Minimum
Fastidious night sky observations from Korean historical texts provide a novel source of evidence for an altered solar cycle during periods of low magnetic activity.
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Magnetic Tangles Drive Solar Wind
Energetic collisions between magnetic fields produce gusty solar wind.
Posted inEditors' Highlights
Sensing the Color of Soil for Climate Modeling
The color of soil reflecting the Sun’s rays affects the Earth’s climate and water cycle. Using satellite data that senses many wavelengths improves soil reflectivity estimates, especially in deserts.
Posted inEditors' Vox
Reducing Aerosol Climate-Forcing Uncertainty: A Three-Way Street
To reduce persistent aerosol-climate-forcing uncertainty, new in situ aerosol and cloud measurement programs are needed, plus much better integration of satellite and suborbital measurements with models.
Posted inResearch Spotlights
How Space Storms Miscue Train Signals
Geomagnetic storms could significantly disrupt electrified train operations in the United Kingdom once every few decades, according to a new study.
Posted inEditors' Highlights
Updated Reference Standard for Total Solar Irradiance
Version 2 of the Total and Spectral Solar Irradiance Sensor-1 Hybrid Solar Reference Spectrum captures a spectral resolution spanning 0.115-200 micrometers and integrates nearly 100% of the TSI energy.