RichardScottOZ

icon location Australia icon location Data Scientist

Results 320 comments of RichardScottOZ

FFT Filter

Ever since LL did the sample notebook I have been tinkering. Let me know when you want me to test something.

FFT Filter

Thanks!

FFT Filter

Thanks! so what is the difference between https://github.com/LL-Geo/PFToolbox/blob/master/FFT_Filter.ipynb and the changes here? Don't think I see it at first or second look.

FFT Filter

Ok, will see what I can find.

FFT Filter

Assuming of course I did it correctly, too.

FFT Filter

![image](https://user-images.githubusercontent.com/72196131/192708235-606feb54-128c-484f-bed9-d366e8bee40d.png) [gAerogmagnetico_Reducido_al_polo.zip](https://github.com/fatiando/harmonica/files/9662238/gAerogmagnetico_Reducido_al_polo.zip)

FFT Filter

This is a decent sized chunk of Peru - clearly flipped y.

FFT Filter

Admittedly just a default test as don't have access to the raw data details gridpseudo = FFT_Filter(mag.squeeze()).pseudo_gravity(90,0,Im=None,Dm=None,F=50000,savefilter=False)

FFT Filter

Yeah - not wrong in that look at the output sense - but wrong if going to do downstream modelling that has affine code type work in it. That is...

Pseudogravity transformation

Also will note this https://pubs.er.usgs.gov/publication/tm7C17 Which has software available via anonymous ftp.