https://github.com/martanto/dsar
Displacement Seismic Amplitude Ratio (DSAR) value
https://github.com/martanto/dsar
seismic seismic-data seismology volcano volcano-seismology volcanoes volcanology
Last synced: 4 months ago
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Displacement Seismic Amplitude Ratio (DSAR) value
- Host: GitHub
- URL: https://github.com/martanto/dsar
- Owner: martanto
- License: mit
- Created: 2024-04-03T11:11:03.000Z (about 2 years ago)
- Default Branch: main
- Last Pushed: 2025-07-28T09:10:18.000Z (10 months ago)
- Last Synced: 2025-08-31T14:14:20.861Z (9 months ago)
- Topics: seismic, seismic-data, seismology, volcano, volcano-seismology, volcanoes, volcanology
- Language: Jupyter Notebook
- Homepage:
- Size: 41.3 MB
- Stars: 2
- Watchers: 1
- Forks: 0
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# Displacement Seismic Amplitude Ratio (DSAR)
## How to Use
### Install using pip:
```python
pip install dsar
```
### Import `dsar` module
```python
from dsar import DSAR, PlotDsar
```
### Initiate DSAR
```python
dsar = DSAR(
input_dir="G:\\Output\\Converted\\SDS",
directory_structure='SDS',
start_date="2024-01-01",
end_date="2024-04-22",
station="RUA3",
channel="EHZ",
resample="10min" # default
)
```
See https://github.com/martanto/magma-converter for supported `directory_structure`.
### Run DSAR
```python
dsar.run()
```
### Results/Output directory
Output directory would be as the same folder where DSAR code is running. It will create `output` directory.
### Plot DSAR
Initiate DSAR plot
```python
plot = PlotDsar(
start_date="2024-01-01",
end_date="2024-04-22",
station="RUA3",
channel="EHZ"
)
```
### Get combined dataframe to plot
```python
df = plot.df
```
The output of dataframe will be saved as CSV:
```text
✅ Saved to D:\Project\dsar\output\dsar\VG.RUA3.00.EHZ\combined_10min_VG.RUA3.00.EHZ.csv
```
Plot DSAR:
```python
plot.plot(
interval_day=7,
y_min=85,
y_max=225,
save=True,
file_type='jpg',
)
```
Output:
```text
✅ Saved to D:\Project\dsar\output\dsar\VG.RUA3.00.EHZ\combined_10min_VG.RUA3.00.EHZ.csv
📷 Figure saved to: D:\Project\dsar\output\figures\dsar\VG.RUA3.00.EHZ\VG.RUA3.00.EHZ_10min_2024-01-01-2024-04-22.jpg
```
Figures:
## References
> Caudron, C., et al., 2019, Change in seismic attenuation as a long-term precursor of gas-driven
eruptions: Geology, https://doi.org/10.1130/G46107.1
>
> Chardot, L., Jolly, A. D., Kennedy, B. M., Fournier, N., & Sherburn, S. (2015). Using volcanic tremor for eruption forecasting at White Island volcano (Whakaari), New Zealand. Journal of Volcanology and Geothermal Research, 302, 11–23. https://doi.org/10.1016/j.jvolgeores.2015.06.001