dipole() result for magnetic source or magnetic source and receiver combination about empymod

[prisae]

Hi @svdbaan

That is not a bug, no, but what you describe is indeed correct. The reason is that empymod.dipole models dipoles, whereas the Ward and Hohmann figures you mention are for loops.

The right function to use is empymod.loop, which is made for loops. The loop function does internally exactly what you describe, to obtain the results for loops instead of dipoles.

If you look at the manual you see that I reproduced the results you mention already with empymod: https://empymod.emsig.xyz/en/stable/gallery/reproducing/ward1988.html

I hope that helps, if not feel free to re-open the issue!

[svdbaan]

Hi Dieter, Oh ok, I see! Thanks. Kind regards, Stefan van der Baan Project leader R&D T&A Survey │ Stefan van der Baan │ Dynamostraat 48 │ P.O. Box 20670 │ 1001 NR Amsterdam │ The Netherlands T: [phone] │ ***@***.******@***.***> │ www.ta-survey.nl [2019 NL]<https://www.ta-survey.nl/> ***@***.***<https://www.linkedin.com/company/t&a-survey?trk=biz-companies-cym>[ig-logo-email]<https://www.instagram.com/tasurvey_bodemonderzoek/> Van: Dieter Werthmüller ***@***.***> Verzonden: woensdag 6 juli 2022 13:27 Aan: emsig/empymod ***@***.***> CC: Stefan van der Baan ***@***.***>; Mention ***@***.***> Onderwerp: Re: [emsig/empymod] dipole() result for magnetic source or magnetic source and receiver combination (Issue #157) Hi @svdbaan<https://github.com/svdbaan> That is not a bug, no, but what you describe is indeed correct. The reason is that empymod.dipole models dipoles, whereas the Ward and Hohmann figures you mention are for loops. The right function to use is empymod.loop, which is made for loops. The loop function does internally exactly what you describe, to obtain the results for loops instead of dipoles. If you look at the manual you see that I reproduced the results you mention already with empymod: https://empymod.emsig.xyz/en/stable/gallery/reproducing/ward1988.html I hope that helps, if not feel free to re-open the issue! — Reply to this email directly, view it on GitHub<#157 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AZ6AO4HWYAOWBIWBIWK4N7LVSVURLANCNFSM52Y5EHTQ>. You are receiving this because you were mentioned.Message ID: ***@***.******@***.***>>

[prisae]

Btw, you might find this example also insightful, which shows the differences between magnetic dipoles and loops: https://empymod.emsig.xyz/en/stable/gallery/educational/dipoles_and_loops.html - This example is specifically to explain the confusion that you reported. Please don't hesitate to ask further if this does not clarify it!