---
configs:
- config_name: default
  data_files:
  - split: test
    path: sample.csv
size_categories:
- 100B<n<1T
tags:
- Seismology
language:
- en
pretty_name: CWA
---

# CWA Benchmark: A Seismic Dataset from Taiwan for Seismic Research

## Dataset Description

This dataset includes a larger number of seismic events, especially high-magnitude. A comprehensive set of events collected by the
 [Central Weather Bureau](https://scweb.cwa.gov.tw/en-US) in Taiwan. The CWA benchmark features over 40 attributes and ∼500,000 seismograms, providing
 valuable data labels for various seismology-related tasks. In the future, we will keep updating the dataset to ensure its relevance and utility.

The entire dataset are released in [Seisbench](https://github.com/seisbench/seisbench), the dataset can be loaded properly by the following:

1. Install Seisbench & HuggingfaceHub
```shell
$ git clone https://github.com/seisbench/seisbench.git

$ cd seisbench
$ pip install .
$ pip install --upgrade huggingface_hub
```

2. Load the CWA dataset
```python
import seisbench.data as sbd

basepath = <path to metadata.csv and chunks.hdf5>
cwa = sbd.CWA(download_kwargs={'basepath': basepath})
print(cwa.metadata.head())
```

* Some parameters customizing the CWA dataset
  - (Bool) ```merge```: Whether to load the merged version (CWASN + TSMIP + Noise), **default=True**.
  - (String) ```subset```: Specify the seismographic network (CWASN, TSMIP, All), **default="All"**.
  - (List) ```train_year```: The range of years used for the training set, **default=[2011, 2018]**.
  - (List) ```dev_year```: The range of years used for the development set **default=[2019]**.
  - (List) ```test_year```: The range of years used for the testing set, **default=[2020, 2021]**.
```python
import seisbench.data as sbd

merge = False
subset = "CWASN"
train_year = [2012, 2017]
dev_year = [2018, 2020]
test_year = [2021, 2021]

basepath = <path to the directory of metadata.csv and chunks.hdf5>
cwa = sbd.CWA(subset=subset, 
              merge=merge, 
              download_kwargs={'basepath': basepath},
              train_year = train_year,
              dev_year = dev_year,
              test_year = test_year
)

print(cwa.metadata.head())
```

---
## Overview of the CWA 
| Attribute | CWASN | TSMIP | Noise | 
|:---:|:---:|:---:|:---:|
| Events | 5,849 | 12,306 | x |
| Traces | 1,237,272 | 98,665 | 806,914 |
| p-picks | 1,237,272 | 98,665 | x |
| s-picks | 821275 | 98,665 | x |
| sampling rate | 100 | 200 | 100 | 
| Multi-event | 196965 | 0 | x |
| Measurement | cm/s2, cm/s | cm/s2 | cm/s2, cm/s | 
| Time period | 2012-2021 | 2011-2020 | 2012-2021 |

---
## Number of trace 
* Categorized into 5 levels by five different pickers
* Noise samples are also provided
* Number of traces
| Level | Meaning | CWASN | TSMIP |
|:---:|:---:|:---:|:---:|
| 0 | The 3-component data are all zeros | 45,244 | 9,620 |
| 1 | None of the pickers predicted correctly | 174,720 | 3,046 |
| 2 | The seismic signal is interrupted | 714 | 0 |
| 3 | 1 or 2 pickers predicted correctly | 192,889 | 3,487 |
| 4 | More than 3 pickers predicted correctly | 823,705 | 82,512 |

# File size

| **2011** | **2012** | **2013** | **2014** | **2015** | **2016** | **2017** | **2018** | **2019** | **2020** | **2021** | **Noise** | **Total** |
|:----:|:----:|:----:|:----:|:----:|:----:|:----:|:----:|:----:|:----:|:----:|:----:|:----:|
| 1.7G | 40 G | 46 G | 41 G | 53 G | 57 G | 41 G | 83 G | 44 G | 43 G | 50 G | 176 G | 836 G |

---
## Station in CWA
![image/jpeg](https://cdn-uploads.huggingface.co/production/uploads/657169c21a22eb9b09c16f7c/KB4BB0t9j3E1EL8WVTR0n.jpeg)

---
## Event in CWA

![image/jpeg](https://cdn-uploads.huggingface.co/production/uploads/657169c21a22eb9b09c16f7c/MtQ_vUst60-RCJi6d-L4r.jpeg)

---
## Acknowledgement
This work was supported by grants from the Central Weather  Administration (CWA) of Taiwan and the National Science and
Technology Council of Taiwan (NSTC 112-2636-E-011-002, NSTC 112-2628-E-011-008-MY3, and NSTC 113-2640-B-002-005). 
In addition, the authors acknowledge the support of the “Empower Vocational Education Research Center” at the National Taiwan 
University of Science and Technology through the Featured Areas Research Center Program within the framework of the Higher 
Education Sprout Project by the Ministry of Education (MOE) in Taiwan. The authors would also like to express our gratitude to the 
National Center for High-performance Computing of the National Applied Research Laboratories (NARLabs) in Taiwan for providing 
computational and storage resources.

---
## Citation
```text
@misc{tang2024CWA,
  title={The CWA Benchmark: A Seismic Dataset from Taiwan for Seismic Research},
  author={Kuan‐Wei Tang, Kuan‐Yu Chen, Da‐Yi Chen, Tai‐Lin Chin, and Ting‐Yu Hsu},
  howpublished={https://pubs.geoscienceworld.org/ssa/srl/article-abstract/doi/10.1785/0220230393/650394/The-CWA-Benchmark-A-Seismic-Dataset-from-Taiwan?redirectedFrom=fulltext}, 
  note={Early publication on Seismological Research Letters},
  year={2024},
}

```