Mohamed Nedal

8 Questions 20 Answers 0 Followers

Questions related from Mohamed Nedal

What are the unresolved issues in Solar Physics?

I've known that one of the unresolved problems is the Coronal heating problem and there are already many theories to explain the illogical temperature at the Corona. I need to know what are the...

11 May 2018 1,140 22 View

Why does the duration of solar flares tend to be much shorter than the duration of type-II solar radio bursts?

Why does the emission wavelength directly proportional to its duration?

01 January 2018 320 6 View

How to find trends in data?

If I have a data like the attached image. I need to draw a vertical line (like the red dashed line) at the max point of the green part (positive trend) which is followed by a strong negative...

21 November 2017 7,686 2 View

What is meant by "fold" in the context of the electron density models?

Hello, I have some questions please regarding the "fold" of the electron density models and I didn't find resources to explain it. 1. What is meant by "fold" in the context of the electron...

27 May 2017 1,152 0 View

How to plot a fitting line on type-II radio burst data?

In the attached images, the "Data.jpg" image is a spectrogram for a type-II radio burst with frequency on the y-axis and time on the x-axis and the intensity of the signal is labeled with colors....

10 May 2017 2,870 4 View

How to include the Solar Wind indices in the Neural Network?

I'm investigating the effect of the Solar Wind drag on the CMEs, especially HCMEs, and I'm using the Neural Network technique (Linear Regression) on MATLAB to do so. My input variables are from...

11 February 2017 8,416 2 View

Does the plasma flux rope on the Sun get separated from the Sun at the moment of CME launching? Even at the edge of the solar system?

For example, in the case of launching a magnetic cloud as an expanding plasma flux rope, which contains a large amount of plasma trapped in the magnetic field lines of the flux rope. Maybe at a...

09 December 2016 449 4 View

Does the motion of particles trapped in the radiation belts affected by the Earth’s rotation and its wobbling motion?

The charged particled trapped in the Van-Allen belts around Earth, maybe they affected by the natural Earth's rotational or wobbling motions and their distribution get disturbed and may reflect...

02 December 2016 5,742 9 View