Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsh53a1068p&link_type=abstract
American Geophysical Union, Fall Meeting 2007, abstract #SH53A-1068
Astronomy and Astrophysics
Astrophysics
7500 Solar Physics, Astrophysics, And Astronomy, 7509 Corona, 7511 Coronal Holes, 7524 Magnetic Fields, 7529 Photosphere
Scientific paper
Line-of-sight photospheric magnetograms are produced every minute at GONG's six sites. All modulators and driving circuitry have recently been replaced, improving the sensitivity, accuracy and zero point by orders of magnitude. Information on the solar atmospheric field can most reliably be derived from such photospheric data, from which model coronal fields are then extrapolated. Near-real-time synoptic magnetogram are produced by GONG every hour. Potential-field source-surface (PFSS) models are then produced every hour yielding insight into large-scale coronal field changes caused by quasi-static evolution and by flares and coronal mass ejections. We also provide a synoptic map and model summarizing each integral Carrington rotation. Features highlighted in the plots and movies include coronal holes, the streamer belt, magnetic flux open to the ecliptic plane and large-scale changes in the field topology. GONG is the official provider of magnetograms for NASA's STEREO mission.
Bolding John
Clark Rebecca
Donaldson-Hanna K.
Harvey Jack W.
Hill F. F.
No associations
LandOfFree
GONG Synoptic Magnetograms and Coronal Magnetic Field Modeling does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with GONG Synoptic Magnetograms and Coronal Magnetic Field Modeling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GONG Synoptic Magnetograms and Coronal Magnetic Field Modeling will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1419674