Stellar magnetic activity : complementing conclusions based on solar and stellar observations by Carolus J Schrijver Book 7 editions published in in English and held by 31 WorldCat member libraries worldwide. Heliophysics by Carolus J Schrijver 2 editions published in in English and held by 21 WorldCat member libraries worldwide The second in this series of three heliophysics texts, integrating the many aspects of space storms and their energetic radiation.
Topical issue on physics of the solar corona and transition region Book 1 edition published in in English and held by 1 WorldCat member library worldwide. Heliophysics Evolv Solar Acti 1 edition published in in English and held by 1 WorldCat member library worldwide Heliophysics is a fast-developing scientific discipline that integrates studies of the Sun's variability, the surrounding heliosphere, and the environment and climate of planets.
This volume, the last in a series of three heliophysics texts, focuses on long-term variability from the Sun's decade-long sunspot cycle and considers the evolution of the planetary system over ten billion years from a climatological perspective. Topics covered range from the dynamo action of stars and planets to processes in the Earth's troposphere, ionosphere, and magnetosphere and their effects on planetary climate and habitability.
Supplemented by online teaching materials, it can be used as a textbook for courses or as a foundational reference for researchers in fields from astrophysics and plasma physics to planetary and climate science. Audience Level. Related Identities. Associated Subjects. Schrijver, C.
English Conference papers and proceedings. Author , Editor , Other. QB, We are constantly flying radiation sensors onboard airplanes over the US and and around the world, so far collecting more than 22, gps-tagged radiation measurements. E-RAD lets us do something new: Every day we monitor approximately flights criss-crossing the 10 busiest routes in the continental USA.
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Typically, this includes more than 80, passengers per day. E-RAD calculates the radiation exposure for every single flight. The Hot Flights Table is a daily summary of these calculations. It shows the 5 charter flights with the highest dose rates; the 5 commercial flights with the highest dose rates; 5 commercial flights with near-average dose rates; and the 5 commercial flights with the lowest dose rates. Passengers typically experience dose rates that are 20 to 70 times higher than natural radiation at sea level.
These energies span the range of medical X-ray machines and airport security scanners.
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Column definitions: 1 The flight number; 2 The maximum dose rate during the flight, expressed in units of natural radiation at sea level; 3 The maximum altitude of the plane in feet above sea level; 4 Departure city; 5 Arrival city; 6 Duration of the flight. These balloons are equipped with radiation sensors that detect cosmic rays, a surprisingly "down to Earth" form of space weather. Cosmic rays can seed clouds , trigger lightning , and penetrate commercial airplanes. Furthermore, there are studies 1 , 2 , 3 , 4 linking cosmic rays with cardiac arrhythmias and sudden cardiac death in the general population.
The data points in the graph above correspond to the peak of the Reneger-Pfotzer maximum , which lies about 67, feet above central California. When cosmic rays crash into Earth's atmosphere, they produce a spray of secondary particles that is most intense at the entrance to the stratosphere. Physicists Eric Reneger and Georg Pfotzer discovered the maximum using balloons in the s and it is what we are measuring today.
In this plot, dose rates are expessed as multiples of sea level. At 40, feet, the multiplier is closer to 50x. The radiation sensors onboard our helium balloons detect X-rays and gamma-rays in the energy range 10 keV to 20 MeV. Why are cosmic rays intensifying? The main reason is the sun. Solar storm clouds such as coronal mass ejections CMEs sweep aside cosmic rays when they pass by Earth.
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Now, however, the solar cycle is swinging toward Solar Minimum, allowing cosmic rays to return. Another reason could be the weakening of Earth's magnetic field, which helps protect us from deep-space radiation. To find reviews of new online casino sites in the UK try The Casino DB where there are hundreds of online casino reviews complete with bonuses and ratings.
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Dr Schrijver is currently principal physicist at Lockheed Martin's Advanced Technology Center, where his work focuses primarily on the magnetic field in the solar atmosphere. He is an editor or editorial board member of several journals including Solar Physics, Astronomical Notices, and Living Reviews in Solar Physics, and has co-edited three other books. George L. Siscoe received his Ph. Professor Siscoe has been a member and chair of numerous international committees and panels and is on the editorial board of the Journal of Atmospheric and Solar Terrestrial Physics.
He has authored or co-authored over publications that cover most areas of heliophysics. Schrijver , George L.
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