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NAIRAS (Nowcast of Atmospheric Ionizing Radiation System)

By: Danube , 10:56 AM GMT on November 03, 2013

"The NAIRAS model provides a space weather decision support tool related to radiation impacts on crew and passengers of long-range aircraft. The NAIRAS model predicts atmospheric radiation exposure from galactic cosmic rays (GCR) and solar energetic particle (SEP) events. GCR particles propagation from local interstellar space to Earth is modeled using an extensionhe Badhwar and O'Neill model, where the solar modulation has been parameterized using high-latitude real-time neutron monitor measurements at Oulu, Thule, Lomnicky, and Moscow. During radiation storms, the SEP spectrum is derived using ion flux measurements taken from the NOAA/GOES and NASA/ACE satellites. Transport of the cosmic ray particles - GCR and SEP - through the magnetosphere is estimated using the CISM-Dartmouth particle trajectory geomagnetic cutoff rigidity code, driven by real-time solar wind parameters and interplanetary magnetic field data measured by the NASA/ACE satellite. Cosmic ray transport through the neutral atmosphere is based on analytical solutions of coupled Boltzmann transport equations obtained from NASA Langley Research Center's HZETRN transport code. Global distributions of atmospheric density are derived from the NCEP Global Forecasting System (GFS) meteorological data." (Source: NAIRAS real time radiation Dose): Link

The Effects of Space Weather on Aviation (Video - 4 min 11 sec)
Astronauts aren't the only ones who need to worry about solar flares. (Source: Science at NASA / Youtube/ ) : Link

The Effects of Space Weather on Aviation / by Phillips, Tony (Source: NASA Science:Link

CONGRATULATIONS to Mr. Mertens and his Colleagues ! ! !

The views of the author are his/her own and do not necessarily represent the position of The Weather Company or its parent, IBM.

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3. WunderAlertBot (Admin)
9:15 PM GMT on September 01, 2014
Danube has created a new entry.
2. Danube
11:00 PM GMT on November 19, 2013
Hello Dave!
Thank you your kind attention!
One very positive, important news!
András from Budapest, Hungary
Member Since: December 31, 1969 Posts: Comments:
1. DaveFive
10:50 AM GMT on November 10, 2013
Hello Danube, I'm Dave from San Jose CA. Your info is very interesting and educational. Photos are great too. The weather in San Jose has been dry for quite some time.
Member Since: December 31, 1969 Posts: Comments:

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