Search found 8 matches

by Leandro
Wed Jan 22, 2025 5:16 am
Forum: Geopsy usage
Topic: Forward modelling
Replies: 1
Views: 3669

Forward modelling

Hi Marc, This may be a brush up of theoretical and practical understanding. If I have 2 clear peaks in the HVSR spectra and I want to forward model using gpsh or gpell, do I account for both peaks as 2 layers above half space in the text file? Or do I use 2 different text files with one layer above ...
by Leandro
Fri Nov 01, 2024 7:50 am
Forum: Geopsy usage
Topic: Coordinates
Replies: 0
Views: 4284

Coordinates

Hi Marc,

The files I usually work with are .SAC format arranged in a linear transect. Is there a quick way to add the receiver coordinates (UTM hopefully) into Geopsy system so it recognizes relative receiver locations? I believe coordinates are stored within .SAC files.

Thank you as always,
Leandro
by Leandro
Mon Sep 16, 2024 2:50 pm
Forum: Geopsy usage
Topic: Importing external txt file into figue
Replies: 0
Views: 10928

Importing external txt file into figue

Hi Marc,

Is there a way to import external text file to add as a layer into Geopsy graphs?
I have the columns of the text file as amplitude and frequency

Thank you!
by Leandro
Sat Sep 14, 2024 2:32 am
Forum: Dinver usage
Topic: HVTFA - ellipticity inversions
Replies: 4
Views: 13628

Re: HVTFA - ellipticity inversions

Hi Marc, Would this be correct? Upon import, I changed the columns as you have suggested to 'Ellipticity (H/V)' for the mean values and 'H/V stddev (approx)' for the error. I also changed the curve value from 'Singed' to 'Absolute'. The ellipticity I got after inversion is this: Ell.png With ellipti...
by Leandro
Thu Sep 12, 2024 1:55 pm
Forum: Dinver usage
Topic: HVTFA - ellipticity inversions
Replies: 4
Views: 13628

Re: HVTFA - ellipticity inversions

Hi Marc, What should be the column designations when importing ellipticity I obtained from the old max2curve if I wanted to use the newer dinver version? I have tried the default but am getting larger misfits as compared to the older version. In the newer version I am getting as high as 10 whereas t...
by Leandro
Tue Sep 10, 2024 11:00 am
Forum: Geopsy usage
Topic: Geopsy damping
Replies: 1
Views: 7348

Geopsy damping

Hi Marc, I have a dataset that we are quite unsure if the peak that we are seeing in the vertical component is of industrial origin. I have been testing this hypothesis using damping toolbox but I am not quite sure of which filter method to use - Butterworth vs Cosine taper. I have tried using a cos...
by Leandro
Thu Aug 01, 2024 1:56 am
Forum: Geopsy usage
Topic: split signal per hour
Replies: 2
Views: 8607

split signal per hour

Hi Marc,

Would you perhaps have a code that cuts and exports SAC signal per hour?

Thank you!
by Leandro
Tue Jul 02, 2024 7:10 am
Forum: Dinver usage
Topic: HVTFA - ellipticity inversions
Replies: 4
Views: 13628

HVTFA - ellipticity inversions

Hi Marc, Posting here as per your advice. I hope this email finds you well. I have been a Geopsy user for quite some time now but only restricted to HVSR processing. I am now exploring how to invert fundamental mode rayleigh wave ellipticity since I am soon to work on glacial ice thickness estimates...