REG NASA-LLIS-0556-1997 Lessons Learned Space Weather Media Blitz.pdf
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1、Lessons Learned Entry: 0556Lesson Info:a71 Lesson Number: 0556a71 Lesson Date: 1997-04-07a71 Submitting Organization: GSFCa71 Submitted by: Peter J. MessoreSubject: Space Weather Media Blitz Description of Driving Event: On April 7, 1997 a solar flare occurred with an associated coronal mass ejectio
2、n and a “coronal Moreton wave.“ These phenomena were seen in new and spectacular ways by instruments aboard the NASA/ESA SOHO spacecraft. NASA, ESA, and NRL scientists queried by the media were excited, and their excitement about the new observations led to media reports that a massive ejection had
3、left the Sun (true), it would hit the Earth (highly probable), at a certain time (wrong), and cause damage and outages to technical systems (highly unlikely.) Meantime, NOAAs Space Environment Center (SEC), utilizing primarily the same types of data with which we have become familiar over the last s
4、everal solar cycles, regarded the flare (C6 in soft x-rays and 3N in H-alpha) to be ordinary, the coronal mass ejection to be the expected garden variety, time of transit to Earth through slow solar wind to be long, and the terrestrial effects likely to be unremarkable.The unprecedented media satura
5、tion and attention gives to this event, and the “NASA predictions“ (which NASA scientists did not make) appearing as an official government warning, caused many systems operators to be severely shaken, As on example, NOAAs Space Environment Center had a call asking if 747s scheduled to fly across th
6、e Atlantic should be kept on the ground at the predicted time of arrival of the storm.This lessons learned document appeared in the June 1997, International STEP Newsletter, Vol. 3, No. 2 and was written by:Ernest Hildner, Director, SECArt Poland, Project Scientist, SOHONicola Fox, ISTPLesson(s) Lea
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