tsssss
commented
2 years ago Hello,
It'll be helpful if you could attach the IDL and Python codes. Also, just want to check if you can replicate the examples in https://github.com/tsssss/geopack/blob/master/README.md.
Thanks, Sheng
On Mon, 18 Oct 2021 at 14:35, Ramiz Qudsi @.***> wrote:
Hello, I am testing and comparing the outputs of this geopack for two different models with those of IDL and I am getting very different results.
I have attached the figures which I plotted for this purpose. For each panel in the figure I have plotted the difference between the output from IDL and Python (b_out_idl - b_out_py). Difference from T96 are plotted in the first row whereas the difference between T01 model are plotted in the second row. The value of x_gsm is at the top left position whereas the value of DST used for the code is at top right
For both T96 and T01 model far from the earth, into the tail, the difference between two outputs is minimal, almost always less than 2nT, and thus can be ignored in most cases (Figure 1, for x_gsm = 9.98 R_E).
However, there seem to be significant difference in output when we move close to the Earth or when we are on the dayside. Though the difference is smaller for T01 outputs compared to those of T96, they are still significant, specially far from the Earth on the dayside (Figure 2).
I wonder if anyone else have had similar issues.
The parameters I used for the codes are as follows:
time = 2015-01-01 00:00:00 GMT par = [5, 0, 1, 1, 0, 0, 0, 0, 0, 0] x_gsm = np.linspace(-15.1, 15, 61) y_gsm = np.linspace(-15.1, 15, 61) z_gsm = np.linspace(-15.1, 15, 61)
I can provide the full python and IDL codes if that will help with the reproduction of these differences.
Figure 1 [image: Figure_3] https://user-images.githubusercontent.com/25327981/137784185-4058c4c8-93fc-42ee-8520-dc452245a665.PNG
Figure 2 [image: Figure_2] https://user-images.githubusercontent.com/25327981/137787058-989c43f6-9cc4-4dd5-95bc-bcf39a657d75.PNG
Figure 3 [image: Figure_1] https://user-images.githubusercontent.com/25327981/137784239-fb801129-daa7-41a8-a991-f3a2824a95c6.PNG
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qudsiramiz
Hello, I am testing and comparing the outputs of this
geopackfor two different models with those of IDL and I am getting very different results.I have attached the figures which I plotted for this purpose. For each panel in the figure I have plotted the difference between the output from IDL and Python (
b_out_idl - b_out_py). Difference from T96 are plotted in the first row whereas the difference between T01 model are plotted in the second row. The value ofx_gsmis at the top left position whereas the value ofDSTused for the code is at top rightFor both T96 and T01 model far from the earth, into the tail, the difference between two outputs is minimal, almost always less than 2nT, and thus can be ignored in most cases (Figure 1, for
x_gsm = 9.98 R_E).However, there seem to be significant difference in output when we move close to the Earth or when we are on the dayside. Though the difference is smaller for T01 outputs compared to those of T96, they are still significant, specially far from the Earth on the dayside (Figure 2).
I wonder if anyone else have had similar issues.
The parameters I used for the codes are as follows:
time = 2015-01-01 00:00:00 GMTpar = [5, 0, 1, 1, 0, 0, 0, 0, 0, 0]x_gsm = np.linspace(-15.1, 15, 61)y_gsm = np.linspace(-15.1, 15, 61)z_gsm = np.linspace(-15.1, 15, 61)I can provide the full python and IDL codes if that will help with the reproduction of these differences.
Figure 1
Figure 2
Figure 3