Our view of the sun's corona with Venus shining on the east side were incredible." "I have never seen anything like the shadow of the Moon rushing upon us during totality, overtaking us and continuing its path at 3000 km/h," says Chapeland. "Our velocity of 950 km/h allowed an extra minute of totality." She recorded this must-see video over a stretch of ocean between Iceland and the Faroe Islands: "Flying at 14,000 m was an incredible way to watch the eclipse," reports Sylvain Chapeland. On March 20th, when the Moon passed in front of the sun over the Arctic Ocean, a few observers extended the experience-in an airplane. The Moon's shadow races across the landscape at thousands of kilometers per hour, enveloping sky watchers for a matter of minutes at most. Tony Phillips for details.ĬHASING MOON SHADOWS: Total eclipses of the sun are achingly brief. Readers, if you would like to contribute to the research, please contact Dr. In exchange for a $500 donation, sponsors can have their logo or favorite family photo transported to the edge of space. Every one of Earth to Sky's flights is sponsored by a private individual or company.
CW13 WEATHER FULL
After a few more flights, the team will share the full data set with the public. By sampling the response of the stratosphere to the great storm-both the initial impact and the rebound-they hope to unravel the puzzle. So far, the student team has launched balloons with radiation sensors on March 13th, March 17th, March 21st, and March 24th and more launches in the offing. This particular buoy was launched on March 17th during the peak of the geomagnetic storm: At least that is what the Space Weather Buoys are telling us. Instead of dropping, radiation in the stratosphere ticked upward. On both occasions, radiation levels in the stratosphere dropped in sync with neutron counts on the ground. The Earth to Sky space weather ballooning program has measured two previous Forbush Decreases, on Sept 13th and Dec 21st, 2014. This drop is called a "Forbush Decrease." It happens because the CME sweeps aside cosmic rays that normally surround Earth, causing radiation levels to drop. Here is an example from the monitoring station in Oulu, Finland:
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Shortly after the CME hit, ground-based neutron monitors measured a drop in cosmic rays.
On March 17th, a CME hit Earth's magnetic field, sparking the strongest geomagnetic storm of the current solar cycle. The missions aim to solve a minor mystery in the stratosphere. WHAT'S GOING ON IN THE STRATOSPHERE? Lately, and the students of Earth to Sky Calculus have been launching a lot of Space Weather Bouys. AR2305 is facing Earth, so any eruptions on March 26th would surely be geoeffective. The growing active region has developed a 'beta-gamma-delta' magnetic field that harbors energy for X-class solar flares.
SUNSPOT OF INTEREST: Solar activity is low, but sunspot AR2305 is poised to break the quiet.
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