26/12/2024
Popular Mechanics – On 5/10/2024, one of the most massive solar storms in decades (& the strongest aurora display in centuries) crashed into Earth, making the northern lights not so northern—for a few nights, at least.
Now, details are still emerging about how the solar storm impacted the everyday goings-on here on Earth. One strange side effect, as reported by Spaceweather.com, is how this intense geomagnetic storm impacted farms knee-deep in May planting season. Because of this busy time of year, many farmers worked into the night with GPS-guided tractors doing a lot of the heavy lifting.
But then, things got weird.
“Our tractors acted like they were demon possessed,” Elaine Ramstad, an aurora chaser who’s family works a farm in northern Minnesota. “All my cousins called me during the May 10 storm to tell me that ‘my auroras’ were driving them crazy while they were planting.”
Ethan Schmidt, a service manager for John Deere, also told Spaceweather.com that more than 80% of farms use some basic form of GPS—these “smart” tractors can plant in perfect rows, apply just the right amount of fertilizer, & then harvest those crops later on. However, on the night of 5/10, things went haywire as the Sun’s rays impacted the Earth’s ionosphere.
On a good day, the ionosphere is a GPS obstacle because charged ions can interfere with GPS measurements. But during a once in a lifetime solar storm, that challenge can become insurmountable. Photos of crops planted on May 10 show crooked rows, as the tractor struggled to get a GPS lock.
Solar storms struck again in October, & one farmer reported that his John Deere’s Autosteer feature “jumped the line,” meaning it would make quick movements left or right. Eventually, the tractor would have to be reset.
“As the aurora activity began, my GPS was off by close to a foot. Twice while on Autosteer, the tractor danced a row to the left, to the right,” Randstad told Spaceweather.com, “& then the defoliator was off a row, so I had to loop around & start over. By nightfall, there was no controlling the Autosteer.”
Hopefully, by planting time next season, farmers will have plan B for when their machines become a bit Sun-addled.