Title: Calculation of Intermittency in the Photosphere and Corona from Hinode Data
1Calculation of Intermittency in the Photosphere
and Corona from Hinode Data
- Valentina I. Abramenko
- And
- Vasyl B. Yurchyshyn
- Big Bear Solar Observatory of NJIT
2What is the intermittency look like?
Non-intermittent Network
Intermittent Network
Spatial Domain
Temporal Domain
time
time
3Intermittency as derived from the Structure
Functions
2D x(x1,x2)
1D xt
4 Flatness function as an indicator of
intermittency
Inertial range
Fatness F( r ) is a constant for a
non-intermittent variable and grows as a power
law when scale r vanishes for an intermittent
variable
?
The intermittency index ?
Scale, r
5NOAA 10930sole on the solar disk
6NOAA 10930intermittency in the corona
Three subsets of Hinode XRT/Be-Thin
area-integrated flux Time Series
Dec 13
Dec 11
Dec 10
7NOAA 10930intermittency in the corona
Three subsets of Hinode XRT/Be-Thin
area-integrated flux Flatness Functions
8NOAA 10930intermittency in the corona
Five subsets of Nobeyama Radioheliograph data
polarization at 9.4 GHz, Time Series
9NOAA 10930intermittency in the corona
Five subsets of Nobeyama Radioheliograph data
polarization at 9.4 GHz, Time Series
10NOAA 10930photospheric intermittency
Hinode SOT/FG magnetogram
To calculate intermittency in the photosphere,
we utilized 2D magnetic field images derived
with Hinode SOT/FG instrument. The covered time
interval 2006 Dec 8/1200 UT to 2006 Dec
13/1845 UT.
Advantages high resolution,
high time cadence,
uninterrupted measurements for several days
11NOAA 10930 intermittency in the photosphere and
corona
12Photospheric kinetic vorticity
13Photospheric kinetic vorticity
14Conclusion
- Highly non-Gaussian, intermittent character of
the magnetic fields in the both photosphere and
corona - The data allow to suggest that intermittency is
preliminary stored in the photosphere and then it
is transported into the chromosphere/corona.